Dissertations / Theses on the topic 'Care farming'
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Leck, Christopher. "The impact of care farming in the UK." Thesis, University of Worcester, 2013. http://eprints.worc.ac.uk/2733/.
Full textSharp, Kimberly J. "An investigation into occupational health care provision for those working in the fish farming industry." Thesis, Robert Gordon University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314051.
Full textKaley, Alexandra. "Green care in agriculture : a visual ethnographic study exploring the therapeutic landscape experiences of people with intellectual disabilities engaged in care farming activities." Thesis, Lancaster University, 2018. http://eprints.lancs.ac.uk/125602/.
Full textKemmies, Sharelda Luanshia Davidene. "Parents' perceptions of early childhood development in the Langkloof farming communities / S.L.D. Kemmies." Thesis, North-West University, 2013. http://hdl.handle.net/10394/9665.
Full textThesis (MSW)--North-West University, Potchefstroom Campus, 2013.
Nyquist, Sophia. ""Vi är ju en del av det hela liksom, vi tror att vi kan ställa oss på sidan om, men vi kan inte det." : En kvalitativ intervjustudie om anordnares upplevelse av att arbeta med lantbruksbaserade insatser." Thesis, Karlstads universitet, Institutionen för sociala och psykologiska studier (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-84351.
Full textLantbruksbaserade insatser går in under paraplybegreppet naturbaserade insatser som innebär att sociala och vårdande insatser som rehabilitering, habilitering, daglig verksamhet kombineras med djur och/eller natur. Studiens syfte var att utforska anordnare inom Grön Arenas upplevelse av att arbeta med grön omsorg utifrån frågeställningarna "varför arbetar man med grön omsorg? samt "vilka faktorer främjar och hämmar anordnares motivation i arbetet med grön omsorg?". Sammanlagt genomfördes åtta semistrukturerade intervjuer i mars 2021. Transkriberat material analyserades utifrån metoden tematisk analys. Totalt tre teman identifierades: Humanitärt intresse, Motkrafter och hinder med två underteman (Negativa attityder och erfarenheter, Ekonomi och politik) och Övertygelse om metod. Resultatet visar att det förekommer både motiverande och demotiverande faktorer som påverkar anordnares drivkraft och motivation. En stark vilja att arbeta med och för människor framträdde tillsammans med en önskan om närhet till djur och natur som positiva motivationsfaktorer. Vidare beskrevs en tilltro till det band som finns mellan människa och naturen och de fördelar som kommer med detta band. Demotiverande var det upplevda yttre motstånd som låg kring en liten kännedom om fenomenet grön omsorg, negativa uppfattningar kring anordnares motivation till att starta en grön omsorgsverksamhet och en viss svårighet kring stabilitet gällande grön omsorg som inkomstkälla. Studien visar att det finns utrymme för utökad forskning kring området och en stor framtidspotential för konceptet som komplement till sedvanlig vård.
Ford, Gary S. "Cornelius P. Lott and his Contribution to the Temporal Salvation of the Latter-day Saint Pioneers Through the Care of Livestock." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1136.pdf.
Full textSipoko, Nomava. "Effect of irrigation farming potential on commercialization of smallholder farming in the Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1019772.
Full textAza-Gnandji, Cocou Davis Ruben. "Salinity of irrigation water in the Philippi farming area of the cape flats, Cape Town, South Africa." University of the Western Cape, 2011. http://hdl.handle.net/11394/2921.
Full textThis research investigated the nature, source and the spatial variation of the salinity of the water used for irrigation in the urban farming area of Philippi, which lies in the Cape Flats region of the Cape Town Metropolitan Area, South Africa. The irrigation water is mainly drawn from the Cape Flats aquifer, and pumped into ponds for eventual crop irrigation. Water samples were collected in summer and in winter from fifteen selected sites using standard water sampling procedures. Each site consisted of one borehole and one pond. The samples were routinely analyzed for salinity levels, and concentrations of major and minor ions. From the same boreholes and ponds, water was sampled in summer for isotope analysis to assess effects of evaporation on the water quality and salinity. Descriptive statistics were used to display the variation in range of specific ions in order to compare them with the recommended ranges. Geographical Information Systems analysis described the spatial distribution of the salinity across the study area, and hydrogeochemical analysis characterized the various waters and detected similarities between the water samples in the study area and other waters found in the Cape Flats region. In addition, the US salinity diagram classification of irrigation water developed by Richards (1954) was used to assess the current suitability of groundwater and pond water samples collected during the entire sampling period for irrigation activities. The research indicated that the concentrations of some ions such as chloride, nitrate, potassium and sodium exceeded in places in the study area, the target range values set by the Department of Water Affairs and Forestry (DWAF, 1996) and the Food and Agriculture Organization (Ayers and Westcot, 1985). It revealed that borehole and pond water were mostly brackish across the area regarding their total dissolved salts content, and fresh water was only found in the middle part of the study area. The research found that sea water does not intrude into the aquifer of the study area, and the accumulation of salts in groundwater and soil in the study area is mainly due to the agricultural activities and partially due to the natural movement of water through the geological formation of the Cape Flats region. The conceptual model of the occurrence of the salinization process supported these findings. From this investigation it is understood that the groundwater and pond water in the study area were generally suitable for irrigation purposes but they have to be used with caution as the vegetables are classified as sensitive and moderately sensitive to salt according to DWAF Irrigation water guidelines (1996). The quality of these waters was mainly affected by the land use activities.
South Africa
Sishuta, Happy Babalwa. "The viability of small-scale farming at the Tyhefu Irrigation Scheme, Eastern Cape." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1004924.
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Robertson, Raynita N. "Organic farming : the way forward for sustainable agriculture in the Western Cape Province." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/18697.
Full textENGLISH ABSTRACT: The incidence of organic agriculture, seen as the sustainable agriculture of the future, was investigated in the Western Cape Province (WCP). Informationabout organic farms in the WCP was obtained through the Internet, over a period of three months. These farms occupy about 33% (771 122 hal of the area within the WCP which is presently being used for the cultivation of crops and horticulture. The information obtained with regard to the type of agriculture and the location thereof was processed and presented graphically. Further, the utilisation of land in the WCP was researched, as well as the problems experienced with the degradation thereof. The possibility of making municipal commonage available to communities and small farmers for sustainable agriculture was also investigated. Taking cognisance of the above variables (organic farms, soil quality and municipal commonage), "Go Organics at Spier" (GOAS) was investigated as a case study. Recommendation was then made on how organic agriculture in the WCP could be promoted.
AFRIKAANSE OPSOMMING: Die voorkoms van organiese landbou, gesien as die volhoubare landbou van die toekoms, is ondersoek in die Wes~Kaap Provinsie (WKP). Inligting oor die organiese plase in die WKP is verkry deur middel van die Internet, oor 'n periode van drie maande. Hierdie plase beslaan ongeveer 33% (771 122 ha) van die oppervlakte binne die WKP wat tans vir die verbouing van gewasse benut word. Die inligting wat verkry is ten opsigte van die tipe landbou en die ligging daarvan is verwerk en grafies voorgestel. Verder is daar ondersoek ingestel na die benutting van grond in die WKP en die probleme wat ondervind word met die degradasie daarvan. Daar is ook ondersoek ingestel na die moontlikheid om munisipale gemeenskapsgronde beskikbaar te stel aan gemeenskappe en klein boere vir volhoubare landbou. Met inageneming van bogenoemde veranderlikes (organiese plase, grond kwaliteit en munisipale gemeenskapsgrand), is "Go Organics at Spier" (GOAS) as 'n gevallestudie ondersoek. Voorstelle word dan gemaak oor die bevordering van organiese landbou in die WKP.
Thesis
Skota-Dayile, Nomvuyo. "Food, farming and subsistence agriculture: women's voices from u-Mhlanga village, Eastern Cape." University of the Western Cape, 2003. http://hdl.handle.net/11394/7766.
Full textUsing a qualitative feminist methodology grounded on post-modemist and postcolonial framework, this research represents an attempt to determine the factors influencing the farming and subsistence agriculture strategies used by rural women of U-Mhlanga village, in the Eastern Cape in the past and the present. It also explores what these women perceive to be their successes and highlights obstacles they encountered in the past and the present in farming. The Eastern Cape has one of the poorest populations of South Africa, and the poorest of these are women. Despite access to land, people are going hungry. This study explores this rural poverty that is feminized and goes on to highlight the social, political and economic issues related to ability or inability to utilize the resources that are accessible. The most prominent problem highlighted by these women goes back to colonial and apartheid times where discrimination in terms of race was used as a determining factor to accessing resources, and how these continue to play out today. However, despite the obstacles, my informants still believe that the local agriculture and farming can sustain rural communities.
Mashele, N'wa-Jama. "Crop yields from organic and conventional farming systems in South Africa's Southern Cape." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/11637.
Full textNiemeyer, Katharina Barbara. "An analysis of the conversion to organic farming in South Africa with special focus on the Western Cape." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52658.
Full textENGLISH ABSTRACT:ENGLISH ABSTRACT: Organic agriculture is a growing sector world wide due to the ecological and SOCIOeconomic crisis in conventional agriculture. The International Federation of Organic Agriculture Movements (!FOAM) estimated a growth rate of between 20 and 30 percent annually across the world. This trend is also detectable in South Africa although it is still a relatively new movement. During the last two years the number of farmers who had converted to organic farming has increased sixfold and although they still account only for a minute small percentage of the total agricultural production, the increasing importance of this sector can now be observed. This was the reason for this study, which dealt specifically with the conversion process to organic farming. Based on survey results, knowledge was gathered about organic farmers in South Africa concerning sociodemographic aspects, farming operations, motivations and problems of the conversion process. In the second part of the study, the focus was placed on three farming systems in the Western Cape, including pome fruit, vegetables and table grapes. Six farms were evaluated on the basis of technical, social and economic aspects of the conversion period. Several differences were observed between organic and conventional farmers, including a higher level of education and a younger age of organic farmers. Mainly horticultural holdings were converted, with a potential for exporting. Problems farmers had to face during the conversion period included the lack of knowledge and information, higher weed infestation and high certification and inspection costs. On most of the farms it was still too early to assess the financial impacts of the conversion, but where it was possible, the feedback was mainly positive. The changes that took place during the conversion period included technical changes such as the approach to pest and disease control, fertilization and seed inputs. Essential investments at the beginning of the conversion period were a financial burden. Variable costs rose mainly as a result of an increase in labour and machinery input. The conversion period had no obvious impact on the fixed costs and thus the net farm income. With respect to these findings it was recommended to support the conversion to organic farming not only financially with different instruments such as subsidies for certification costs but also to develop an improved infrastructure for marketing, networking and information exchange. Several areas for research were identified to increase the knowledge of organic farming in the South African context.
AFRIKAANSE OPSOMMING: Organiese boerdery is wêreldwyd 'n groeiende bedryf as gevolg van die ekologiese en sosioekonomiese krisis waarin konvensionele landbou verkeer. Die International Federation of Organic Agriculture Movements (lFOAM) het die groeikoers op tussen 20 en 30 persent per jaar wêreldwyd beraam. Hierdie neiging is ook in Suid-Afrika waar te neem, alhoewel dit hier nog' n relatief nuwe beweging is. Gedurende die afgelope twee jaar het die getal boere wat na organiese boerderyomgeskakel het, sesvoudig toegeneem. Alhoewel hulle nog 'n baie klein persentasie bydra tot die totale landbouproduksie, is die toenemende belangrikheid van die bedryf waarneembaar. Dit was die beweegrede vir hierdie studie, wat spesifiek klem gelê het op die omskakelingsproses na organiese boerdey. Beskrywende inligting oor organiese boere in Suid-Afrika, soos sosio-demografiese eienskappe, boerdery-aktiwiteite, motiverings en probleme met die omskakelingsproses, is met behulp van 'n opname verkry. In die tweede gedeelte van die ondersoek is daar op drie boerderystelsels in die Wes-Kaap gefokus, naamlik vrugte, groente en tafeldruiwe. Ses boerderye is aan die hand van tegniese, sosiale en ekonomiese aspekte van die omskakelingsperiode geëvalueer. Verskeie verskille is waargeneem tussen organiese en konvensionele boere, insluitend 'n hoër vlak van opvoeding en 'n jonger ouderdom van organiese boere. Hoofsaaklik boerderye in die hortologie, met uitvoer moontlikhede is omgeskakel. Van die probleme wat boere gedurende die omskakelingsperiode ondervind het, het 'n gebrek aan kennis en inligting, hoër voorkoms van onkruid, asook hoë sertifiserings- en inspeksiekoste ingesluit. By die meeste van die boerderye was dit nog te vroeg om die finansiële impak van omskakeling te kon beoordeel, maar waar dit tog moontlik was, is hoofsaaklik 'n positiewe terugvoer gevind. Die veranderinge wat gedurende die omskakelingsperiode plaasgevind het, het tegniese veranderinge soos die benadering tot pes- en siektebeheer, bemesting en saad ingesluit. Noodsaaklike investerings aan die begin van die omskakelingsperiode het 'n finansiële las tot gevolg gehad. Koste het hoofsaaklik weens 'n toename in arbeid- en masjinerie insette gestyg. Op grond van die bevindinge van die ondersoek is aanbeveel dat ondersteuning vir die omskakeling na organiese boerdery nie net finansieel deur middel van verskillende instrumente soos subsidies vir sertifiseringskoste gegee word nie, maar om ook 'n verbeterde infrastruktuur vir bemarking, netwerke en inligtingsuitruiling te ontwikkel. Verskeie gebiede vir verdere navorsing IS geïdentifiseer om kennis oor orgamese boerdery in die Suid- Afrikaanse konteks uit te brei.
Khapayi, Musa. "Agribusiness challenges to effectiveness of contract farming in commercialisation of small-scale vegetable farmers." Thesis, Nelson Mandela University, 2017. http://hdl.handle.net/10948/13981.
Full textOkada, Masanori. "An investigation into farming enterprises under the land redistribution program in the Southern Cape." University of Western Cape, 2004. http://hdl.handle.net/11394/7391.
Full textIn 1994, the first democratically elected South African government promised to redistribute 30 % of white-owned farmland to the formerly disadvantaged people in order to rectify the racially-based unequal distribution of land and to improve their socioeconomic conditions. The ANC-led government opted to promote agriculture for achieving the latter aim since agriculture is generally seen to have a strong potential for poverty alleviation and economic development in the under-resourced areas.
Kleynhans, Maria Magdalena. "An exploration of conflict in farming family businesses in the southern Cape, South Africa." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1011275.
Full textMaleri, Monika. "Effects of rainbow trout (Oncorhynchus mykiss) cage culture on Western Cape irrigation reservoirs." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6680.
Full textENGLISH ABSTRACT: Water storage in reservoirs forms an integral part of the agricultural landscape in the Western Cape Province, South Africa. A few large reservoirs serve primarily as a drinking and industrial water supply, while on private farms, small reservoirs provide irrigation water for the dry summer period. Protection of water quality to secure irrigation and drinking water quality, and the extension of water use efficiency are priority issues in the Western Cape. In the current study, the suitability of rainbow trout (Oncorhynchus mykiss) cage farming as a non-abstractive water use was investigated. The current study concentrated on the identification, and where possible quantification of aquaculture impacts, the identification of successful sites and a description of requirements in which net-cage aquaculture has none or a very low negative impact on water quality (e.g. <15 % change from previous water quality conditions for phosphorus concentrations). In order to study the effects of 5 t trout cage production units in reservoirs <15 ha in area, the general ecology of the irrigation reservoirs was assessed. Sixteen reservoirs without aquaculture production (reference reservoirs) were compared to 26 reservoirs with aquaculture production (production sites with varying production histories). Catchment characteristics were also monitored. Water from different depths (0 m, 2 m, 6 m and near bottom) was tested for physical and chemical qualities as well as nutrient concentrations. Phytoplankton and zooplankton biomass and species composition was monitored. In addition to the general phytoplankton findings, cyanophytes were evaluated for their contribution to algal taint problems that emerged at a number of production sites. Sediments were tested for total phosphorus content and phosphorus release capacity. Indicators and minimum conditions to avoid the most common production problems were formulated. In order to determine long-term production success, which prevents trophic level changes of reservoirs, a mass balance approach (nutrient budget) was employed to indicate the limits for nutrients that can be added. The phosphorus balance indicated long term trends for reservoirs with and without aquaculture. The detailed mass balance approach was compared to a “ready to use” carrying capacity model that estimated the maximum fish load each reservoir could support. The anthropological input of phosphorus into the reservoirs causes a decreasing water quality in the studied reservoirs and this development was also reported for lowland rivers. Twenty percent of the studied reservoirs are in a condition that could be an immediate threat to fish or water bird health (e.g. free ammonia concentrations and pH). Harmful algal blooms were not observed. Aquaculture production evoked changes in water chemistry and ecology in most of the studied reservoirs. Adverse effects of aquaculture sites versus non-aquaculture sites were: increased phytoplankton biomass and species shifts towards sizes >80 μm. The increased phytoplankton abundance influenced pH maxima to values >9 at mid-day. The high pH fluctuations were greatly influenced by the naturally low alkalinity and hence low calcium buffering capacity of Western Cape waters. The deoxygenation of the hypolimnion during stagnation (summer) occurred faster in reservoirs of certain character, greatly dependent on elevation and surface area, with consequent acidification of the hypolimnion, as well as ammonia and total phosphorus (TP) accumulation. In this context, a diversity of each reservoir with and without aquaculture production, with a similar ratio of undisturbed reservoirs to reservoirs with influence of e.g. agriculture, were compared to each other. When grouping the respective differences from the average reference reservoir (i.e. no trout production), a low impact on water quality was manifested at four sites (15 %) with <15 % increase of bottom TP and ammonia, while eight sites (31 %) showed medium effects (59 % mean increase), and a high impact was found at 54 % of the sites (312 % mean increase). In reservoirs without aquaculture, the extent of incoming phosphorus (which could represent an influence by runoff from agricultural land) was very high. However, in small reservoirs (<5 ha), these values were exceeded by the incoming phosphorus from aquaculture practices. In the case of small reservoirs where the carrying capacity was clearly surpassed, effects caused by aquaculture were severe and the assimilation of waste by the system was not possible (in extreme cases aquaculture waste delivered 60 to 90 % of all incoming phosphorus – two to nine times the phosphorus brought in by rivers and runoff). With regards to sediment, only indirect conclusions could be drawn. Aquaculture production increased hypolimnetic anoxia and the latter was shown to increase potential phosphorus release from sediments. This implies that not only will aquaculture increase the phosphorus concentration of surface waters directly, but it will also increase internal loading. The sedimentation rate was increased with cage aquaculture which affects a hypothesized area of approximately 0.2 to 1.0 ha depending on reservoir hydrology. The composition of the sediment increased organic components which can impact on sediment processes. It can be postulated that increased sedimentation of aquaculture waste and extended anoxic conditions impact on macrozoobenthos. Hydrological and nutrient mass exchange of the reservoirs indicated that no annual increase of phosphorus was achieved with low nutrient input (good inflowing water quality) or good water exchange (>5 times per year), and sometimes with extraction of hypolimnetic water during the stagnation period (summer). A model developed by Beveridge (1984) showed similar results to the mass balance approach and can therefore serve as a more ready model to determine suitable stocking rates. The small (man-made) reservoirs in the Western Cape are in a eutrophication process which far exceeds the speed of natural eutrophication (trophic states indicating highly eutrophic or hypertrophic conditions after approximately 10 to 20 years following construction of the reservoirs) and this process is triggered by agricultural practice (indicated by literature – not a subject of this study). However, it is concluded from the data of this study that trout-cage aquaculture duplicated the total phosphorus already present (independent of continuation of the projects, the phosphorus introduced was trapped in the closed systems the reservoirs represent) in only 1 to 2 years of production - which means a significant acceleration of the eutrophication process already in place. There are positive exceptions where trout-cage production is possible without negative effects. Careful site selection is the most important step in successful and sustainable trout production. No impact of aquaculture was recorded at four reservoirs (15 % of the investigated reservoirs) which shared the characteristics of good water exchange (>3 times per year) and a minimum surface area of 5 ha. Additionally, criteria that reduced the risk of algal taint included a minimum water depth of 6 to 7 m in a reservoir at its lowest water point (to avoid intermediate mixing during the stagnation period) as well as cold hypolimnetic conditions (<17 °C) to minimize cyanophyte cyst remobilization. Further improvement of food conversion ratio (feeding management) and feed quality are the next (after site selection) two most important components that determine if a reservoir can be utilised for cage production without any long-term changes. There is potential in advances in feed quality, feed management and waste collection systems. These measures (e.g. the cage size could be decreased to efficate feeding management) can increase the number of sustainable sites and achieve multiplication of water use without water quality deterioration.
AFRIKAANSE OPSOMMING: Die stoor van water in reservoirs vorm ‘n integrale deel van die landboulandskap in die Westelike Kaap gedeelte van Suid-Afrika. ‘n Aantal groter reservoirs voorsien primêr water primer vir drinkdoeleindes en vir aanwending deur industrieë, terwyl kleiner reservoirs op private plase gebruik word vir besproeiing gedurende die droë somerperiode. Die beskerming van die waterkwaliteit en die uitbreiding van watergebruik se doeltreffendheid, word bestempel as ‘n prioriteit vir die Wes-Kaap. In die huidige studie is die geskiktheid van forel hokkultuur as ‘n bykomende watergebruik, maar sonder waterverbruik, ondersoek. Die huidige studie fokus op die identifisering en waar moontlik die kwantifisering van die impak van akwakultuur op besproeiingsreservoirs; die identifisering van potensiële reservoirs vir akwakultuur; en die beskrywing van toestande waarin akwakultuur geen of ‘n baie lae negatiewe uitwerking op die waterkwaliteit (bv. < 15 % verandering vanaf oorspronklike waterkwaliteitstoestande vir fosforkonsentrasies) sal hê. Om die impak van 5 t forel hokproduksie eenhede in <15 ha reservoirs te bestudeer, is die algemene ekologie van die besproeiingsreservoirs bepaal. Watermonsters, geneem op verskillende dieptes (0, 2, 6 en naby die bodem), is getoets vir fisiese- en chemiese kwaliteit sowel as vir die nutriëntkonsentrasies. Die biomassa en spesiesamestelling van fitoplankton sowel as zooplankton is gemonitor. Sestien verwysingsreservoirs is vergelyk met 26 produksiereservoirs (met wisselende vlakke van produksiegeskiedenis). Die karakeristieke eienskappe van die opvangsgebied is ook gemonitor. Tesame met die algemene fitoplankton bevindinge, is blougroen alge ook geëvalueer vir hul bydrae tot algae besmettingsprobleme wat voorgekom het by ‘n aantal produksie persele. Sedimente is getoets vir die totale fosforinhoud en fosforvrystellingskapasiteit. Perseelseleksie is geidentifiseer as een van die mees belangrikste faktore vir suksesvolle hokproduksie. Indikatore en minimum toetstande wat vereis word om die mees algemene produksieprobleme te verhoed, is geformuleer. Om die langtermyn produksie sukses te bepaal, wat trophiese vlakke se verandering in die reservoirs verhoed, is ‘n massa balans benadering (nutriënt balans) gebruik. Die fosfor balans het langtermyn tendense aangetoon en in die geval van die produksie reservoirs, is die akwakultuurimpak gekwantifiseer. Die gedetaileerde massa balans benadering is vergelyk met ‘n “gereed om te gebruik” drakapasiteitsmodel wat die maksimum vis wat die reservoir kan onderhou, geskat het. Die antropogeniese toevoer van fosfor na die reservoirs veroorsaak ‘n afname in die waterkwaliteit van die reservoirs wat bestudeer is. Die verskynsel van ‘n afname in waterkwaliteit is ook vir verskeie laagliggende riviere geraporteer. Sowat 20 % van die besproeiingsreservoirs wat bestudeer is, is tans in ‘n toestand wat die onmiddelike gesondheid van vis en watervoëls kan bedreig. Skadelike algebbloei is nie waargeneem nie. Akwakultuurproduksie het negatiewe effekte getoon in ‘n aantal reservoirs. Die nadelige uitwerking van akwakultuur waar digthede te hoog was, is: toename in fitoplankton biomassa en spesiesverskuiwinge. Die toename in fitoplankton teenwoordigheid het die pH maxima beïnvloed tot waardes >9 teen 12 uur middag. Die hoë pH fluktuasies is grootliks beïnvloed deur die natuurlike lae alkaliniteit en gevolglike kalsium bufferkapasitiet van die Wes-Kaap se waterbronne. Die deoksiginasie van die hipolimnion gedurende stagnasie (somer) het vinniger plaasgevind in oorbelaaide reservoirs, met gevolglik ‘n versuring van die hipolymnion, sowel as die akkumelering van ammoniak en totale fosfor. In hierdie konteks word reservoirs met en sonder landbouproduksie, met ‘n gelyke verhouding van onversteurde reservoirs tot reservoirs wat deur landboubedrywighede beinvloed word, met mekaar vergelyk. By vier persele (15 %) is ‘n lae impak vasgestel (<15 % toename in bodem TF en ammoniak), terwyl agt persele (31 %) ‘n medium impak getoon het (59 % gemiddelde toename in bodem TF en ammoniak) en ‘n hoë impak is opgemerk by 54 % van die persele (31 % gemiddelde toename in bodem TF en ammoniak). In reservoirs sonder akwakultuur, was die omvang van fosforinvloeiing baie hoog en is moontlik veroorsaak deur die invloei van afloopwater uit omliggende landbougebiede. Alhoewel in klein reservoirs (<5 ha) was hierdie waardes oorskadu deur die invloeiing van fosfor deur akwakultuur praktyke.In die geval van klein reservoirs, waar die drakrag duidelik oorskry is, was die gevolge, soos veroorsaak deur akwakultuur ernstig, en die assimilasie van afval deur die sisteem nie moontlik nie. In die uiterste gevalle het akwakultuurafval 60 % - 90 % van alle inkomende fosfor gelewer - twee tot nege maal die fosfor wat deur riviere en afloopwater ingevloei het. Wat die sediment aanbetref, kon slegs indirekte gevolgtrekkings gevorm word. Akwakultuurproduksie het hipolimnetiese anoksia laat toeneem en die laasgenoemde verskynsel, het die potensiaal aangedui vir die toename in die vrystelling van fosfor vanaf die sediment. Dit dui daarop dat akwakultuur nie alleen die fosforkonsentrasie in die oppervlaktwater laat toeneem nie, maar sou ook die interne belading laat kon toeneem. Die sedimentasie tempo het toegeneem met die teenwoordigkeid hokkultuur en het ‘n hipotetiese area van ongeveer 0.05 tot 1.00 ha, afhangende van reservoir hidrologie, beïnvloed. Die samestelling van die sediment het toegeneem in teme van die organiese komponente wat die sedimentasie prosesse kon beïnvloed. Dit kan gepostuleer word dat die toename in sedimentasie van akwakultuurafvalprodukte tesame met verlengde anoksiese toestande, ‘n invloed op die makrosoöbentiese organismes het. Hidrologiese en nutriënt massa uitruiling van die reservoirs het aangetoon dat geen jaarlikse toename in fosfor verkry kan word met lae nutrient toelae (kwaliteit van invloeiende water) of met goeie waterverplasing nie, en soms met die ekstraksie van hipoliminetiese water gedurende die stagnasie periode (somer). Die Beveridge model het soortgelyke resultate getoon tot die massabalans benadering en kan daarom dien as ‘n meer aanvaarbare model om gepaste beladingstempo vas te stel. Kleiner mensgemaakte reservoirs in die Wes-Kaap is onderhewig aan ‘n eutrofikasie proses wat die spoed van natuurlike eutrofikasie (trofies verwys na ‘n hoogs eutrofiese of hipertrofiese toestand ongeveer 10 tot 20 jaar na reservoir konstruksie) oorskry. Literatuur (nie ondersoek in die huidige studie) dui aan dat hierdie versnelde eutrofikasie proses meegebring word deur landbouaktiwiteite in die opvangsarea van die reservoirs. Resultate van die huidige studie het getoon dat forelproduksie in hokstelsels, die konsentrasie van total fosfor wat reeds beskikbaar was, verdubbel het. Die toename in fosforkonsentrasie het binne 1 tot 2 jaar na die aanvang van forelproduksie in die betrokke reservoirs, plaasgevind. Daar is egter uitsonderings waar forelproduksie in hokstelsels moontlik was, sonder die gepaardgaande afname in die waterkwaliteit. Die belangrikste stap vir suksesvolle en volhoubare forelproduksie is deeglike perseelseleksie. Daar is geen impak van akwakultuur waargeneem by vier persele (15 %) wat die eienskappe van goeie waterverplasing (>3 keer per jaar) en ‘n minimum oppervlakarea van 5 ha gehad het nie. Bykomend, sluit kriteria wat die risiko van algbesmetting laat afneem, ‘n minimum waterdiepte van 6 tot 7 m in ‘n reservoir by die laagste punt in (om te verhoed dat intermediêre vermenging plaasvind gedurende die stagnasieperiode) sowel as koue hipolimnetiese toestande (<17 °C) om sianobakterieë sist remobilisasie te minimaliseer. Verdere verbetering van die VOH (voeromsettingsverhouding onder voedingsbestuur) en voerkwaliteit is na perseeleleksie, die volgende komponente wat kan aandui of ‘n perseel gebruik kan word vir hokkultuur sonder enige impak. Vordering met voerkwaliteit en voedingsbestuur kan die aantal volhoubare persele laat toeneem en daardeur meer effektiewe watergebruik teweeg bring, sonder die verwante waterkwaliteit verswakking.
Luck, Kelly. "Contested rights : the impact of game farming on farm workers in the Bushmen's River area." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1004144.
Full textKibirige, Douglas. "Impact of human dimensions on smallholder farming in the Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1007532.
Full textWard, Catherine Dale. "Climate variability in social-ecological systems of the Southern Cape: integrating farming and fishing perspectives." Doctoral thesis, Faculty of Science, 2018. http://hdl.handle.net/11427/30088.
Full textGidi, Lungile Sivuyile. "Rural households livelihoods' strategies and opportunities with regard to farming: a case of Intsika Yethu Local Municipality." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1007218.
Full textNel, Jacobus E. "Successful integration of upcoming farmers in the commercial farming sector : a focus on the Western Cape." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97355.
Full textENGLISH ABSTRACT: In South Africa, land reform and the development of upcoming farmers are part of the country’s transformation objectives. The development of upcoming farmers into commercial farmers therefore requires the growth of sustainable agri-businesses. Unfortunately, limited success has been achieved in terms of land reform and the country is far from its set targets. This study examined the factors that gave current successful, upcoming commercial farmers the advantage to grow their businesses up to a certain level. Data was collected through interviews with farmers, mentors, transformation managers and governing bodies such as Agri-West Cape. Interviews on the farms gave the researcher the opportunity to observe underlying factors that can influence their businesses. The objective of the study was to determine the critical success factors that relate to the success of upcoming commercial farmers in the Western Cape. The results identified a number of success factors, some of which were unexpected and in contrast with some of the literature sources. All the cases covered in this study – i.e. successful, upcoming commercial farmers in the Western Cape – used different business models and emphasised the importance of proper management. They also used their detailed business plans as a handbook for successful farming, and acknowledged the important role of mentors. Only a mentor-farmer relationship based on trust and respect worked in the end. The mentors took on coaching roles that were not limited to farming activities but included an equally important people development component. A sustainable market was identified as one of the critical success factors for successful upcoming commercial farmers. One of the biggest hurdles for upcoming farmers was financial management. Hence, they required dedicated financial management to be sustainable. One of the main outcomes of the study was the importance of the personal profile of the farmers and their understanding of the opportunity. Focusing on short-term financial gains resulted in failure. All the farmers in the case studies displayed a deep understanding of the long-term goal of their businesses and their role in that. Transformation, land reform and building an equal society in South Africa are burning points for the nation. The success of upcoming farmers helps to build confidence that the hard work is paying off.
Mbusi, Nontembeko. "Assessment of sources of livelihoods and opportunities to improve the contribution of farming within available food chains." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1007575.
Full textZamxaka, Xolisa. "Factors affecting participation rates in farming in the rural areas of South Africa: case of Amathole District Municipality." Thesis, University of Fort Hare, 2015. http://hdl.handle.net/10353/d1021291.
Full textGabagambi, Respikius Martin. "Contract Farming and Smallholder Farmers in a Global Economy: The Case of Mtibwa Cane Growers in Mvomero Tanzania." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1399121227.
Full textSteer, Lorn Adam. "Site selection for the Small-Scale Aquaculture Farming Systems in the Western Cape : a GIS application." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019/1653.
Full textMapiliyao, Luke. "Sheep production practices, flock dynamics, body condition and weight variation in two ecologically different resource-poor communal farming systems." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/340.
Full textKing, Bryan Rhodes. "The establishment of an effective farming system for the Allan Waters communal area in the Eastern Cape Province." Thesis, Port Elizabeth Technikon, 2002. http://hdl.handle.net/10948/95.
Full textHashe, Luvuyo E. "The role of the state and the environment in indigenous livestock farming: a case study of Debe Marela, Middledrift area, Eastern Cape." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/372.
Full textMbizana, Nandipha. "Identifying appropriate paths for establishing sustainable irrigated crop based farming business on smallholder irrigation schemes: a case of Ncora Irrigation Scheme." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1016205.
Full textMhlontlo, Simphiwe. "Effects of sheep kraal manure and intercropping with maize on growth, nutrient uptake and yield of a vegetable Amaranthus accession in the central region of the Eastern Cape, South Africa." Thesis, University of Fort Hare, 2008. http://hdl.handle.net/10353/76.
Full textAdeyemi, Samson Adebowale. "Evaluation of the possible application of cowpea genotypes in the farming systems of the Eastern Cape Province, South Africa." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/d1007539.
Full textAsmah, Ruby. "Development potential and financial viability of fish farming in Ghana." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/461.
Full textHards, Adrian F. "Comparative engineering costing and implications of commercial and smallholder irrigator design for projects." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6501.
Full textENGLISH ABSTRACT: In the study, six irrigation schemes based in the Eastern Cape have been considered and evaluated, according to two levels of supply (LOS) of irrigation water. The two levels of supply are that of a commercial irrigator and that of a smallholder irrigator. The irrigation infrastructure for each of the six schemes was designed, and the associated costs determined, for each level of supply. The primary objective of the study is to determine the impact of infrastructure costs and irrigation areas on the target user, either the commercial or the smallholder irrigator. This is related directly to the assumption that lower water volumes are used by the smallholder irrigator. The study addresses the impact of different designs on the amount of water used, land utilised and resultant costs of the infrastructure. The initial capital costs and the on-going operational and maintenance costs (O&M) for each level of supply for each of the schemes have been calculated. The evaluation of the two LOS has shown that the capital cost for the commercial LOS is approximately 18 % higher than for the smallholder LOS and the O&M costs 6 % to 36 % higher. The schemes that were investigated can be grouped into five general scheme types. The first type is gravity schemes, which need rehabilitation, while the bulk supply is in place with no augmentation or rehabilitation required. The second is pumped scheme which is in need of rehabilitation, while the bulk supply is in place with no augmentation or rehabilitation required. The third type includes run-of-river schemes where water is abstracted and pumped directly to the lands. The fourth type includes run-of-river schemes where water is abstracted and pumped to storage. The fifth type is the gravity scheme where the bulk supply needs to be installed as part of the scheme. These types are then grouped and can be used to give guidance on the anticipated costs dependant on the scheme type and the required level of service. A further objective of the research is to determine the impact on the smallholder irrigators who find themselves on a commercial LOS system. This can be either on a scheme that has already been designed, or on a new system. The evaluation of the commercial under-utilised LOS and the smallholder LOS has shown that the commercial capital cost is 18 % higher and the O&M costs 5 % to 29 % higher. The study further aligns the estimated costs with the farmer typology providing a broader understanding of the design to be adopted for different levels of supply. This provides the linkage between farmer types, the design to be implemented and the anticipated costs thereof.
AFRIKAANSE OPSOMMING: As deel van hierdie narvorsing word ses verskillende besproeiingsskemas in die Oos-Kaap ten opsigte van twee voorsieningsvlakke ondersoek. Die twee voorsieningsvlakke ter sprake is vir ‘n kommersiële en kleinboerdery opset. Die besproeiingsinfrastruktuur is vir elk van die ses besproeiingsskemas ontwerp en ‘n kosteberaming vir elk van voorsieningsvlakke gedoen. Die hoofdoelwit van hierdie verslag is om te bepaal wat die impak van kostes en besproeiingsareas op beide kommersiële- en kleinboerderye is. Dit is direk gebaseer op die aanname dat kleinboerderye minder water gebruik. Die verslag ondersoek die impak van verskillende ontwerpe op waterverbruik, besproeiingsoppervlak benodig en die gevolglike infrastruktuurkostes. Die aanvanklike kapitaalkostes asook bedryfs- en onderhoudsuitgawes (B&O) vir elk van die voorsieningsvlakke, is vir elk van die besproeiingskemas bereken. Die resultaat van die ondersoek van die twee voorsieningsvlakke het aangetoon dat die kapitaalkoste van kommersiële besproeiingskemas 18 % hoër as die van kleinboerderye is, en bedryfs- en onderhoudsuitgawes 6 tot 36 % hoër. Die skemas wat ondersoek is, kan in vyf algemene skema tipes verdeel word. Die eerste is die gravitasieskemas wat rehabilitasie benodig terwyl die hooftoevoer in plek is met geen uitbreidings- of rehabilitasiebehoeftes. Die tweede is pompskemas wat rehabilitasie benodig terwyl die hooftoevoer in plek is met geen uitbreidings- of rehabilitasiebehoeftes. Die derde is rivierskemas waar besproeiingswater direk uit die rivier na die landerye gepomp word. Die vierde is rivierskemas waar besproeiingswater direk uit die rivier na a reservoir gepomp word. Die vyfde skema tipe is die gravitasieskemas waar die hooftoevoer ook gebou moet word as deel van die skema. Die skema tipes kan gebruik word om leiding te verskaf ten opsigte van verwagte skema kostes afhangende van die skema tipe en vereiste voorsieningsvlak. ‘n Verdere doelwit van die studie is om die impak op kleinboere te bepaal wat op ‘n kommeriële voorsieningsvlak boer. So ‘n stelsel kan ‘n gevestigde of nuwe stelsel wees. Die resultaat van die ondersoek van die onderbenutte kommersiële voorsieningsvlak en die kleinboerdery voorsieningsvlak het gewys dat die kapitaalkoste van kommersiële besproeiingskemas 18 % hoër as die van kleinboerderye is, en bedryfs- en onderhoudsuitgawes 5 tot 29 % hoër. Die verslag vereenselwig die verwagte kostes met die tipe boerdery en verskaf ‘n beter begrip van die tipe ontwerp wat elk van die voorsieningsvlakke benodig. Dit verskaf dus die verband tussen die tipe boerdery, die ontwerp benodig en die verwagte projekkostes.
Van, Zyl J. (Jacques). "Occurrence, biology, damage potential and management of Heterodera Schachtii (Nematoda: Heteroderidae) in small-scale farming in the Western Cape Province, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53533.
Full textENGLISH ABSTRACT: During a survey in the greater Cape Flats Heterodera schachtii was found to be widespread on cauliflower, Brussels sprouts, beetroot and cabbage. The numbers present were above two eggs and juveniles per gram of soil, generally regarded as the economic threshhold level of infestation and requiring control. The damage potential of H schachtii on vegetables, as well as the ability of certain weeds to serve as a source of infection on subsequent crop plantings was studied under greenhouse conditions and resulted in a reduction of yield and root weight of crops. Population densities of H schachtii increased significantly under favourable hosts like cabbage where densities of 198 eggs and juveniles per gram of soil were reached. The most commonly occurring weeds maintained nematode development and increased their population densities. They can thus serve as alternative hosts in the absence of susceptible hosts and should be routinely controlled. The life cycle and biology of H schachtii was also studied. Penetration of plant tissue and subsequent development on vegetables, weeds and trap crops were observed. Penetration was successful on all crops tested reaching 37% and 52% at inoculum levels of 22 and 11 juveniles per gram of soil, respectively. Subsequent development of H schachtii on weeds and vegetables was similar, but in the case of cauliflower and black nightshade as hosts, their life cycle was shorter in comparison to other crops. The possible existence of varying susceptibility of crops to different populations of H schachtii was examined by comparing the rates of penetration in crops and reproduction of geographically isolated populations of H schachtii in the greater Cape Flats. When root penetration, virulence and juvenile emergence were examined, populations from Lynedoch and Philippi were distinct from the other populations. Subsequently, representative individuals of these populations were subjected to PCR-RFLP, but with these techniques real differences between the various populations could not be adequately detected. The environmental parameters such as soil texture, temperature and pH on H schachtii were investigated as to their influence on the root weight and yield of crops. Reductions in the yield of beetroot and cabbage were observed with soil temperatures ranging between 15 to 30°C. Migration and penetration of H schachtii juveniles declined with an increase in clay and silt content of the soil. Above a 34% silt and clay content of soil, no migration and penetration took place. Root penetration levels of 30% and higher were reached with pH varying between 4.5 and 7.4. This resulted in a significant reduction in yield of crops. Crop rotation is an essential component of non-chemical control. In the case of H schachtii, it required one host crop in four non-host rotational cycles to maintain the population of the nematode in the soilless than three eggs and juveniles per gram of soil. The inclusion of a trap crop reduced the population densities to below two eggs and juveniles per gram of soil. It therefore also forms an integral part of a control strategy. Solarization proved successful as a physical control method. Best results were obtained in summer with clear polyethylene which led to a 97% reduction of infective juveniles. This method can be applied during the late summer in the greater Cape Flats, just before the onset of winter. This may safeguard future spring plantings. The need for effective control strategies in order to reduce the numbers of H schachtii is of the utmost importance to ensure vegetable production in the future. Small-scale farmers should therefore be educated in this respect.
AFRIKAANSE OPSOMMING: Heterodera schachtii het wydverspreid in 'n opname in die groter Kaapse Vlakte voorgekom op beet, blomkool, Brusselse spruite en kopkool. Die nematode getalle by alle lokaliteite was bo die algemeen aanvaarbare ekonomiese drempelwaarde van twee eiers en larwes per gram grond wat beheer regverdig. Die skadepotensiaal van H schachtii op groente, sowel as die vermoë van sekere onkruide om as infeksie bronne te dien vir opvolgende gewasse, is in glashuise ondersoek en het tot 'n verlaging in opbrengs en wortelmassa by gashere gelei. Die populasie digthede van H schachtii het met die aanplant van geskikte gashere tot vlakke van 198 eiers en larvae per gram grond gestyg. Die mees algemeen voorkomende gasheeronkruide het nematode ontwikkeling in stand gehou en selfs tot 'n populasie verhoging gelei. Hierdie onkruide is 'n beperkende faktor vir die verbouing van groente aangesien die onkruide as alternatiewe gasheer kan dien in die afwesigheid van gashere en onkruidbeheer moet dus op 'n gereelde basis toegepas word. Die lewenssiklus en biologie van H schachtii is ondersoek deurdat die penetrasie van gasheer wortels en die daaropvolgende ontwikkeling op groente, onkruide en vanggewasse vergelyk is. Penetrasie, vyf dae na inokulasie, is met alle gashere verkry met 37% en 52% penetrasie met inokulum vlakke van 22 en 11 larwes per gram grond onderskeidelik. Daaropvolgende ontwikkeling van H schachtii was soortgelyk op groente en onkruide, maar blomkool en nastergal het as gashere 'n verkorte lewenssiklus tot gevolg gehad. Die moontlikheid van verskille in die virulensie van H schachtii is ondersoek deur die penetrasie van gewasse en reproduksie vlakke van nematodes van nege verskillende geografies geskeide populasies in the groter Kaapse Vlakte te vergelyk. Die Lynedoch en Philippi populasies het onderskeibare resultate gelewer ten opsigte van die populasies uit die ander lokaliteite, maar geen verskille kon met PKR-RFLP aangetoon word nie. Die invloed van omgewings parameters, grondtekstuur, temperatuur en pH, is op H schachtii ondersoek ten opsigte van opbrengste en wortelmassa van gewasse. Grondtemperature tussen 15°C - 30°C het tot die grootste daling in opbrengs gelei op kopkool en beet. Migrasie en penetrasie het afgeneem met 'n toename in klei en slik inhoud tot en met 'n klei en slik inhoud van 34%, waarna geen penetrasie en migrasie voorgekom het nie. Wortelpenetrasie van 30% en hoër het voorgekom by pH vlakke van tussen 4.5 - 7.4 met die gepaardgaande verlaging in opbrengs van gewasse. Afwisseling van gewasse is 'n essensiële metode van nie-chemiese beheer van nematode getalle in die grond. Die mees optimale rotasie ten opsigte van H schachtii beheer is met die aanplanting van een gasheer gewas in vier gewas aanplantings verkry. Die insluiting van 'n vanggewas in die gewas rotasie siklus het die nematode populasievlakke tot onder twee per gram grond laat daal. Solarisasie is suksesvol uitgevoer met deurskynende poli-etileen in die groter Kaapse Vlakte gedurende die somer met gevolglik 'n 97% vermindering van die getalle infektiewe nematodes. Effektiewe beheermaatreëls ten opsigte van H schachtii moet in die groter Kaapse Vlakte ingestel word om groente-produksie in hierdie gebied te verseker. Kleinboere moet in hierdie tegnieke opgelei word.
Mlomzale, Mpilo. "The decline of agricultural production in rural areas of the Eastern Cape." Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/11212.
Full textKafaar, Al-Ameen. "The efficacy of participatory communication training in farming communities : the case of Valley FM in the Cape Winelands District Region." Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86361.
Full textENGLISH ABSTRACT: Global economic conditions are forcing donor and development agencies to reduce aid to developing countries and communities. This reduction is resulting in less developmental programmes for disadvantaged communities. To ensure that developmental programmes are implemented successfully and cost effectively, implementing agents will have to ensure that they improve their developmental communication. It is also becoming important that those who are to benefit from developmental programmes convey or identify exactly what their needs are. There should be very little speculation from development agencies about what the needs of the disadvantaged are. It is becoming necessary to review current developmental tools, methods and systems, and also to explore what other measures can be applied to ensure that speculation or time and money wasting exercises are eliminated. This study attempts to look at two things that will influence effective development communication. The first is to examine if community radio is still as an efficient developmental communication tool as perhaps two decades ago. Secondly, it looks at the possibility to tailor-make information for those who need develop, especially in the context of evolving technology.
Meerkotter, Marÿke. "Sources of heavy metals in vegetables in Cape Town and possible methods of remediation." Thesis, University of the Western Cape, 2012. http://hdl.handle.net/11394/1721.
Full textCape Town includes two vegetable farming areas within the city limits, the Joostenbergvlakte/Kraaifontein area and the Philippi area. Both areas supply produce to local markets and further afield. Sporadically, high levels of cadmium, copper, lead and zinc have been found to occur in some of the soils, irrigation water resources and crops. To find the sources of specifically Cd, Pb and Zn to these agricultural systems, extensive analysis of several heavy metals in inputs such as fertilizers, agrochemicals and supplementary water resources to these farming areas was undertaken. Heavy metal concentrations in soils, irrigation water resources and crops were also determined. Two mitigation techniques that could be used to remediate Cd, Pb and Zn contamination were investigated. The first mitigation method included immobilization of heavy metals as phosphate complexes by using a triple super phosphate fertilizer, while the second method involved mobilisation and thus leaching of heavy metals away from plant roots using EDTA. These mitigation methods were tested in a pot experiment using cabbage as the experimental crop and soil from these areas as growth medium. A survey of common farming practices in these two areas and farmers willingness to use remediation methods was conducted.
South Africa
Ngwenya, Kwanele. "Factors affecting rural farming households’ willingness to participate in a proposed irrigation scheme: a situation analysis of Guquka in Nkonkobe District Municipality, Eastern Cape, South Africa." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1007145.
Full textAtinuke, Jimoh Rashidat. "Investigating the use of social networking via mobile phone as an extension tool in small-scale (emerging) agriculture in selected farming communities in the Cacadu District." Thesis, Nelson Mandela Metropolitan University, 2015. http://hdl.handle.net/10948/18398.
Full textModjadji, Mathlo Itumeleng. "Elicitation of risk preferences of smallholder irrigation farmers in the Eastern Cape Province of South Africa." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/4846.
Full textMakhathini, Siyabonga. "Opportunities and challenges faced in promoting small holder farming as an element in rural economic development: the case of Buffalo City Municipality in the Eastern Cape, South Africa." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1007534.
Full textLlale, Semakaleng. "Climate variability: Human management response to environmental changes in Touws River valley and Makolokwe." University of the Western Cape, 2020. http://hdl.handle.net/11394/7296.
Full textClimate has been changing significantly around the globe; hence climate variability is of great interest to researchers. The changes in climate have caused variances in rainfall and temperature, both elements of paramount importance in farming, whether commercial or communal farming. As these fluctuations in temperature and rainfall occur, they cause direct impacts on different livelihoods, fauna and flora. The aim of this thesis is to investigate the human management responses of farmers in two different contexts of communal farming (Makolokwe) and commercial farming (Touws River valley), with a focus investigation on the adaptation and coping strategies of the farmers, as well as spatial analysis of the vegetation and rainfall variability. Farmers were asked to discuss climate and adaptation based on the rainfall data available as well as far as they could remember the occurrence of changes. Rainfall data was available between 1988 and 2017 for Touws River, while the data utilised for Makolokwe was available between 1928 and 2016. The link between the local knowledge of the farmers and scientific knowledge is an important aspect of this research. The Normalised Difference Vegetation Index (NDVI) was used to analyse the vegetation changes on a temporal and spatial scale in the context of Makolokwe and Touws River valley respectively. The differing variations in climate variability and change experienced by the two farming communities are placed alongside an exploration of the adaptation and coping measures which are put in place by farmers as a response to the changes evident in climate, as it allows for better and thorough understanding of the occurring changes in the two communities. The study found that perceptions about climate variability vary in the two communities although there are some common factors. Farmers’ perceptions about climate variability are drawn from their own observations at a local level as well as knowledge from the media regarding terms such as El Niño and drought. Farmers in both communities indicated that they experienced insufficient rain in the winter months which had an impact on the grazing areas and the management of the livestock. These months also threatened livelihoods, especially for farmers who depend on their livestock for their livelihood, in particular communal farmers. Perceptions of factors such as decreasing grazing and vegetation in their environments have led to the adoption of adaptation and coping strategies on the part of farmers. Commercial farmers have more choices in this regard than communal farmers, such as converting to game farming. Common coping strategies include: (1) farmers have had to subsidise and use alternative food sources for the livestock, (2) livestock numbers have been reduced in order to adapt to climate variability, with an impact on livelihoods (3) farmers have had to rely on their hope and faith that things will get better. Planning for climate variability is challenging for land managers. Knowledge and access to resources is therefore essential in ensuring that farmers are kept on track with the changing environment.
Menzies, Diane. "Clean and green? Environmental quality on the New Zealand dairy farm." Lincoln University, 1999. http://hdl.handle.net/10182/1553.
Full textMpuzu, Misery Sikelwa. "The impact of farmer support programmes on market access of small holder farmers in the Eastern Cape and KwaZulu-Natal Provinces." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1007140.
Full textvan, Stade Mario. "The effect of food safety compliance on emerging farmers and sustainable farming in the Western and Eastern Cape provinces of South Africa." Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/77892.
Full textDissertation (MSc (Agric))--University of Pretoria, 2019.
Agricultural Economics, Extension and Rural Development
MSc (Agric)
Unrestricted
Khapayi, Musa. "Commercialisation of emerging famers in the Eastern Cape province : identification of limiting factors that inhibit the progression from subsistence to commercial farming." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020067.
Full textKumbirai, Kaguru Tinashe. "Characterisation of the production and consumption of milk in the communal livestock production sector of the Eastern Cape Province, South Africa." Thesis, University of Fort Hare, 2016. http://hdl.handle.net/10353/3066.
Full textGumbo, Tichaona. "An economic analysis of the impact of removing organic waste from small scale cage aquaculture systems in irrigation dams in the Western Cape." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6775.
Full textENGLISH ABSTRACT: The rising demand of fish due to population growth coupled by stagnation of fish supply from natural capture has led the world to turn to aquaculture to fill in the gap between fish supply and demand. Aquaculture has emerged as the only sustainable way of supplying the rising population with fish. However the rapid expansion of aquaculture has been met with growing concerns over its environmental effects especially waste produced from aquaculture. The net cage system that is currently being used by small scale trout farmers in the Western Cape is an open water based system where release of waste into the water bodies is inevitable and this put into question the long term sustainability of trout farming using net cages in irrigation dams in the Western Cape. This study sought to compare identified production techniques that can be used by aquaculture farmers to reduce accumulation of organic waste in irrigation dams. The proposed ‘clean’ production techniques include use of net cages fitted with Lift-up system, semi intensive floating tank system (SIFTS) and intergrated aquaculture systems. The study revealed that the intergrated aquaculture system is the most effective way of recovering waste that shows great potential of moving aquaculture towards long term sustainability as it fullfills sustainability dimensions such as ‘zero emission’, nutrient recycling and integrated production. Mechanical methods of recovering waste such as Lift-up system and SIFTS are also effective in recovering particulate waste but however dissolved nutrients are lost into the environment. The study went on further to investigate if economic, environmental and social benefits of recovering waste from irrigation dams outweigh the costs of recovering waste using different production techniques. Models of small scale aquaculture farms using the three identified production techniques were developed and compared with a modelled small scale net cage farm where there was no waste recovery. A comparative financial analysis of the modelled small scale trout farms using alternative production techniques carried out showed that trout production using any of the three alternative ‘clean’ production techniques is financially viable with the SIFTS production technique giving the farmer the highest returns, followed by the intergrated system, then the net cage with a Lift-up system and lastly the net cage system without waste recovery. The second part of the study used the contingent valuation method to estimate the environmental and social benefits of removing waste from dams. Households revealed that they were willing to pay (WTP) R40 on average annually to improve water quality from a state where eutrophication had occurred to a state suitable for irrigation and aquaculture. To improve water quality from a state suitable for irrigation to a state suitable for swimming, households were willing to pay R16.67 annually. If water was to be improved from a state suitable for irrigation to a level suitable for domestic purposes, average willingness to pay (WTP) was R26.17 annually. WTP indicate that besides financial benefits associated with using ‘clean’ production techniques there are environmental and social benefits that will arise to the farm community using water from the irrigation dams.
AFRIKAANSE OPSOMMING: Die stygende vraag na vis as gevolg van bevolkingsgroei, tesame met die stagnering van die aanbod van vis vanaf natuurlike vangste het daartoe aanleiding gegee dat die oë van die wêreld op akwakultuur gerig is om die gaping in die voorsiening van vis te vul. Akwakultuur het ontwikkel as die enigste volhoubare manier om aan die groeiende vraag na vis te voldoen. Die vinnige uitbreiding van akwakultuur het egter toenemende besorgdheid in die nadelige omgewingsimpak, veral ten opsigte van akwakultuurafval, tot gevolg gehad. Die nethokstelsel wat tans deur kleinskaalse forelboere in die Wes-Kaap in oop watergebaseerde sisteme gebruik word en die vrystelling van afval in die wateromgewings wat onafwendbaar is, plaas ’n vraagteken oor die langtermyn volhoubaarheid van die nethokstelsel forelboerdery in besproeiingsdamme in die Wes- Kaap. Die studie het ten doel gehad om geïdentifiseerde produksiestelsels wat deur akwakultuurboere gebruik kan word om die akkummulasie van organiese afval in besproeiingsdamme te verminder, te vergelyk. Die voorgestelde “skoon” produksietegnieke sluit in nethokke wat aan ’n opligstelsel gekoppel word, ‘n semi-intensiewe drywende tenk- stelsel (“SIFTS system” in Engels) en ‘n geïntegreerde akwakultuurstelsel. Met hierdie studie is bevind dat die geïntegreerde stelsel die mees effektiewe manier is om afval te herwin en toon potensiaal om akwakultuur op ’n vohoubare pad te plaas aangesien dit aan die volhoubaarheidsdimensies van geen emissie, voedingstofherwinning en geïntegreerde produksie voldoen. Meganiese metodes van afvalherwinning soos die nethokopligstelsel en die SIFTS-stelsel is effektief in die herwinning van vastestofdeeltjies, maar opgeloste voedingstowwe word steeds in die omgewing vrygestel. Die studie het voorts ten doel gehad om te bepaal of die ekonomiese, omgewings- en sosiale voordele om afval uit besproeiingsdamme te herwin, groter is as die herwinningskoste van die verskillende produksietegnieke. Modelle van kleinskaalse akwakultuurplase wat die drie geïdentifiseerde produksiestelsels gebruik, is ontwikkel en aangewend om te vergelyk met ’n nethokstelsel waar geen afvalherwinning gedoen word nie. ’n Vergelykende finansiële ontleding van die gemodelleerde kleinskaalse forelboerderye met die verskillende produksietegnieke is gedoen en daar is bevind dat enige een van die drie “skoon” stelsels finansieel lewensvatbaar is, met die SIFTS-stelsel wat die hoogste vergoeding aan die boer bied, gevolg deur die geïntegreerde stelsel, dan die nethokke aan ’n opligstelsel en dan die nethokstelsel sonder afvalherwinning. Die tweede deel van die studie het van die voorwaardelike (“contingent”) waardasiemetode gebruik gemaak om die omgewings- en sosiale voordele om afval uit besproeiingsdamme te verwyder, te bepaal. Huishoudings het aangetoon dat hulle bereid sou wees om tot R40 per jaar te betaal om die waterkwaliteit te verbeter vanaf ’n toestand waar eutrifikasie plaasgevind het na ’n toestand waar die water vir besproeiing en akwakultuur geskik sou wees. Om die waterkwaliteit vanaf ’n toestand geskik vir besproeiing te verander na ’n toestand geskik om in te swem, sou huishoudings bereid wees om R16.67 per jaar te betaal. Indien water vanaf ’n toestand geskik vir besproeiing verander sou word na ’n toestand geskik vir huishoudelike gebruik, sou huishoudings gewillig wees om jaarliks R26.17 te betaal. Die “gewilligheid om te betaal” dui aan dat daar bo en behalwe die finansiële voordele om van “skoon” produksietegnieke gebruik te maak, ook omgewings- en sosiale voordele vir die plaasgemeenskap bestaan met die gebruik van die water uit die besproeiingsdamme.
Bunce, Brittany. "Agricultural investments in the communal areas of the Eastern Cape: The impacts of joint ventures on livelihoods and land rights." University of the Western Cape, 2018. http://hdl.handle.net/11394/6804.
Full textA major and unresolved challenge facing South Africa’s post-apartheid government, is how best to overcome the historical injustices of land dispossession and the resultant poverty now found in the communal areas of the former 'homelands'. In line with the South African government’s hybrid of neo-liberal and social welfare approaches to development, one important strategy for addressing these challenges has so far been the promotion of inclusive business models such as joint ventures (JVs), especially in the context of land restitution claims, but also in communal areas. This study explores the impacts of the JV model on livelihoods and land rights and use, and engages with key debates regarding the dynamics of class formation in the former 'homelands' of South Africa. The study undertakes a comparative analysis of two Joint Venture (JV) dairy farms, involving the same agribusiness partner, Amadlelo Agri. The farms are located on irrigation schemes in the former Ciskei of South Africa’s Eastern Cape Province. The JVs involve residents from the rural settlements of Keiskammahoek and Shiloh, as both landowners and workers. The comparative case study presented here illustrates quite divergent outcomes when the same JV model is implemented in different rural settlements, most powerfully because of differences in the class structure of each settlement. Class analysis helps to explain the more intense intragroup conflicts that have emerged around the JV in Shiloh. Intragroup dynamics and conflicts, which have historical roots extending beyond the implementation of the JV intervention, are also critical to understanding divergent outcomes. A class-analytic approach assists in understanding the tensions that the JV model of capitalist farming generates in relation to household reproduction, in a class-differentiated manner. The sole focus in much of the literature on agricultural investments has been on relationships between agribusiness, and what are too often portrayed as homogenous 'communities’. However, this thesis illustrates that this approach is misleading when applied to analysis of the real politics on the ground. Struggles over jobs, dividends and land take place within highly differentiated communities. Investigating the inter- and intra-household distribution of JV benefits and risks is central to understanding the impacts of the JV on livelihoods and incomes, and also the emerging contentions and conflicts. To this end, I explore how class interacts with other aspects of social difference, particularly gender, kinship, ethnicity, race, generation and religious affiliation. A class-analytic approach is significant because it illuminates the emerging agrarian class structure that a JV-type intervention both reflects and in turn conditions, in dialectical fashion. It thus allows exploration of the implications of the JV model for wider processes of agrarian change in South Africa. Although there is evidence of livelihood benefits being derived by some households, as well as limited opportunities for accumulation, the JV model does not appear to stimulate the emergence of a class of productive black farmers. Significantly, the study could not identify any households as 'middle farmers', reliant on 'accumulation from below', which many authors consider to be a more progressive, dynamic and desirable pathway of agrarian reform. The JV model is at risk of equating ‘black emerging farmers’ with a group of customary landowners, who are in reality workers and 'passive recipients' of JV dividends and land rents.