Дисертації з теми "Soil and vegetable contamination"
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Alum, Absar. "Control of viral contamination of reclaimed irrigated vegetables by drip irrigation." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/280675.
Повний текст джерелаSantos-Araujo, Sabrina Novaes dos. "Soil-to-plant transfer of heavy metals and an assessment of human health risks in vegetable-producing areas of São Paulo state." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-30042015-152533/.
Повний текст джерелаUma das principais vias de exposição de elementos potencialmente tóxicos (EPT) para a maioria da população é por meio da ingestão de alimentos, mas poucos são os estudos relacionados às concentrações de EPTs em solos e em vegetais de regiões tropicais úmidas, sobretudo no Brasil. O índice mais comumente utilizado para estimar o acúmulo de EPTs em vegetais e a subsequente exposição humana pelo consumo de vegetais é o fator de bioconcentração (BCF), que é a razão entre a concentração de metais em partes comestíveis de hortaliças e da concentração total do metal no solo. Porém, o BCF não descreve adequadamente a transferência solo-planta de metais. Assim, a utilização de relações envolvendo os principais atributos dos solos que influenciam a disponibilidade dos EPTs às plantas pode explicar com mais detalhe as relações solo-planta. O estado de São Paulo é o maior mercado consumidor, além de ser o maior e mais diversificado produtor olerícola no Brasil. Assim, são necessárias pesquisas referentes às concentrações de metais pesados em solos e hortaliças, para avaliação da qualidade dos mesmos em relação aos limites estabelecidos pela legislação. Os objetivos neste trabalho foram: (i) caracterizar e avaliar as relações solo-planta entre as concentrações de Cd, Cu, Ni, Pb e Zn em solos e olerícolas de folhas e raiz no estado de São Paulo, tendo em vista os limites estabelecidos pela legislação; (ii) desenvolver modelos empíricos para poder derivar adequados limites críticos do solo e fornecer uma avaliação de risco precisa para regiões tropicais; (iii) desenvolver propostas para melhorar os limites críticos baseados na saúde humana para Cd, Cu, Ni, Pb e Zn em solos de São Paulo, utilizando relações solo-planta adequadas para as condições tropicais. Com exceção do Cd, houve correlação positiva entre os teores pseudototais e biodisponíveis dos EPTs. Os teores de Cd e de Pb nas plantas, por outro lado, não correlacionaram significativamente com nenhuma das variáveis estudadas. Os modelos de florestas aleatórias e árvores foram bons preditores de resultados gerados a partir de um modelo de regressão e forneceram informações úteis sobre quais covariáveis foram importantes para previsão apenas para o teor de Zn na planta. A aplicação de modelos de transferência solo-planta proposto neste estudo tiveram bom desempenho e foram úteis para oito das dez combinações (cinco metais contra duas espécies). O conjunto de resultados de SP pode ser combinado com o da Holanda usando o modelo em que se incluem pH, teor de carbono orgânico - CO e teor de argila para Cd em alface e para Ni e Zn na alface e na cenoura. O modelo foi mais eficiente com os conjunto de resultados combinados para Cu, Pb, Zn, em alface e para Cd e Cu na cenoura. A abordagem não foi eficiente para Ni e para Pb em cenoura, com resultados incoerentes para os conjuntos de resultados combindados ou separados, para os quatro modelos testados.
Diop, Amadou. "Diagnostic des pratiques d'utilisation et quantification des pesticides dans la zone des Niayes de Dakar (Sénégal)." Phd thesis, Université du Littoral Côte d'Opale, 2013. http://tel.archives-ouvertes.fr/tel-00959895.
Повний текст джерелаScott-Fordsmand, Janeck James. "Biomarkers of soil contamination." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265176.
Повний текст джерелаSalgado, Maria Antonia Santos Mendes. "The effects of vegetable oil contamination on mussels." Thesis, Bangor University, 1995. https://research.bangor.ac.uk/portal/en/theses/the-effects-of-vegetable-oil-contamination-on-mussels(a001885f-2570-447b-90fb-d4cc6630d1e9).html.
Повний текст джерелаRauton, Susannah R. W. "Soil fertility management in organic vegetable production." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1193080187/.
Повний текст джерелаFarias, Christyan Paiva. "Fungos promotores do crescimento vegetal e da fitorremediação de metais pesados em combinação com biochar." Universidade Federal de Uberlândia, 2018. http://dx.doi.org/10.14393/ufu.di.2018.713.
Повний текст джерелаThe search for sustainable measures to improve and meet the demand for food that population growth requires, combined with the scarcity of productive land, in addition to the excessive accumulation of metals in the environment due to activities such as mining and application of soil fertilizers, were the two problems that motivated the present study. The use of fungi plant growth promoters: Beauveria bassiana, Metarhizium anisopliae, Pochonia chlamydosporia, Purpureocillium lilacinum and Trichoderma asperella can both influence on increasing productivity as the phytoremediation of heavy metals in the soil. These facts are explained by the capacity of the fungal Consortium to synthesize and induce plants to produce phytohormone targeted for the better development of the roots of the host. The further development of roots can stimulate phytoextraction of metals from the soil and give plants tolerance to contamination. In order to evaluate the influence of fungi on the development of plants, were done seed treatments of soybeans and corn and application in aerial part of the culture of sugar cane. To analyze the influence of these organisms in the process of phytoremediation of Cu, Zn and Mn in soil columns cultivated with Jacaranda mimosifolia D. Don, fungi were inoculated in soil and aerial part of plants. All treatments had 6 reptitions and their averages were subjected to analysis of variance and average test at 5% probability. The fungal consortium has conditioned the growth of roots of soybeans and corn, mycorrhizal colonization increased in soybeans and sugar cane. In jacarandá, fungi have improved the development of roots and shoots, greater accumulation of Mn and Zn in plant, best of Mn and Zn translocation from roots to shoots, in addition to decrease physiological stress. In addition, the joint application of fungus and biochar in seedlings provides protection to photosynthetic activity and reduces the risk of environmental contamination by metals by decreasing the amount of Cu, Mn and Zn leached. The biochar was acquired through the slow pyrolysis of the eucalyptus wood processing residue and applied superficially to the soil. With that, this study showed that fungi used present potential to contribute to the increased productivity of commercial crops and contribute to the improvement in the remediation of soils contaminated with metal ions.
Dissertação (Mestrado)
Mbodji, Mor. "Etude des impacts environnementaux et sanitaires des déchets d’équipements électriques et électroniques (DEEE) au Sénégal : cas de la ville de Dakar." Electronic Thesis or Diss., Lyon, 2021. http://www.theses.fr/2021LYSE1290.
Повний текст джерелаWaste electrical and electronic equipment (WEEE) is particularly problematic around the world. The aim of this thesis was to assess the potentially harmful effects of waste electrical and electronic equipment (WEEE) on the dispersion of metals in the environment and their fate to human health in Dakar, Senegal. Studies first focused on the determination of metals in the soils of four WEEE recycling sites in Dakar (Mbeubeuss, Mermoz Pikine and Reubeuss) by LIBS and portable X-ray fluorescence techniques. The results of this work showed that all the sites studied were contaminated by elements such as Pb, Cr, Fe, Mn and Zn in comparison with a control site. The distribution of metals is highly dependent on the site and therefore on the recycling activity. The potential contamination of the population through the food chain was assessed by analyzing vegetables produced near the largest WEEE waste dump (Mbeubeuss). Speciation by sequential extraction of the elements Sb, Pb, Sr, Cr, Cu Mn and Zn in market garden soils showed that the elements were mainly present in the residual fraction. This approach has shown that the metals are not mobile and not very bioavailable to plants. The contamination of metallic elements in two batches of vegetables produced from two distinct market gardening areas near Mbeubeuss and the evaluation of the potential health risk associated with the consumption of these products were studied. The results obtained from the first batch showed the contents of Cu, Cr, Mn, Zn and Fe led to risk indices. For the 2nd batch of vegetables (closer to Mbeubeuss) the concentrations of Cr, Zn and Pb are higher with a risk linked to the presence of Cr. The results of this work led to the conclusion that there is a potential health hazard for consumers of vegetables linked to the Cr element, only if it is present as CrVI
Allen, David. "Vegetable Fibre Geotextiles used to Reinforce and Reinstate Contaminated Soil." Thesis, Leeds Beckett University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.523682.
Повний текст джерелаMhlauli, Ntuthuzelo Columbus. "Growth analysis and soil water balance of selected vegetable crops." Diss., University of Pretoria, 2000. http://hdl.handle.net/2263/26200.
Повний текст джерелаDissertation (M Inst Agrar (Horticulture Science))--University of Pretoria, 2000.
Plant Production and Soil Science
unrestricted
Mzini, Loyiso Lloyd. "The effects of greywater irrigation on vegetable crops and soil." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/6609.
Повний текст джерелаChoi, Chung-ming. "Land contamination and its remediation methods : a case study in Hong Kong /." Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B14709156.
Повний текст джерелаMeuli, Reto Meuli Reto Giulio Meuli Reto Giulio Meuli Reto Giulio. "Geostatistical analysis of regional soil contamination by heavy metals /." [S.l.] : [s.n.], 1997. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=12121.
Повний текст джерелаTsang, Jennifer Arr, and 曾昭雅. "Dioxin contamination in soil: remediation technology and environmental management." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31255644.
Повний текст джерелаSudini, Hari Kishan Huettel Robin Norton. "Soil microbial community structure and aflatoxin contamination of peanuts." Auburn, Ala., 2009. http://hdl.handle.net/10415/1875.
Повний текст джерелаSjödell, Ingrid. "Spatial Assessment of Soil Contamination through GIS Data Management." Thesis, KTH, Hållbarhet och miljöteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-236774.
Повний текст джерелаSvendsen, Claus. "Earthworm biomarkers in terrestrial ecosystems." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326956.
Повний текст джерелаMohammadi, Kourosh. "Numerical modeling of petroleum contamination in the subsurface soil layer." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0005/NQ38727.pdf.
Повний текст джерелаZhao, Zhenyong. "Biosurfactants enhanced bioremediation of PAHs contamination soil under thermophilic condition." HKBU Institutional Repository, 2007. http://repository.hkbu.edu.hk/etd_ra/822.
Повний текст джерелаLeiva, Soto Andrea S. "Effects of Soil Balancing Treatments on Soils, Vegetable Crops and Weeds in Organically Managed Farms." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu151514193894181.
Повний текст джерелаWhitfield, Lynn. "Heavy metal tolerance and mycorrhizal colonisation in Thymus polytrichus A. Kerner ex BorbaÌs ssp. britannicus (Ronn.) Kerguelen (Lamiaceae)." Thesis, University of Newcastle Upon Tyne, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246685.
Повний текст джерелаAl-Shehry, Jaber Mohammed. "EFFECT OF GUAR GUM ON VEGETABLE TRANSPLANT GROWTH." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275440.
Повний текст джерелаOverstreet, Laura Flint. "RELATIONSHIPS BETWEEN SOIL BIOLOGICAL AND PHYSICAL PROPERTIES IN A LONG-TERM VEGETABLE MANAGEMENT STUDY." NCSU, 2005. http://www.lib.ncsu.edu/theses/available/etd-10312005-033217/.
Повний текст джерелаHarrison, Adrian Briscoe. "Hydrocarbon pollution of soil : effects on microbial populations and biomediation methods." Thesis, University of York, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362025.
Повний текст джерелаNolte, Kurt, Mark C. Siemens, and Pedro Andrade-Sanchez. "Integrating Variable Rate Technologies for Soil-applied Herbicides in Arizona Vegetable Production." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/146756.
Повний текст джерелаPrecision herbicide application is an effective tool for placing soil incorporated herbicides which have a tendency for soil adherence. And while field implementation depends on previous knowledge of soil textural variability (soil test and texture evaluations), site-specific technologies show promise for Arizona vegetable producers in non-uniform soils. Regardless of the method used for textural characterization, growers should keep in mind that textural differences do not change in the short/medium term, so the costs associated with defining texture-based management zones can be spread over many years.
Cundiff, Gary Thomas. "Using Arbuscular Mycorrhizae to Influence Yield, Available Soil Nutrients and Soil Quality in Conventional VS. Organic Vegetable Production." TopSCHOLAR®, 2012. http://digitalcommons.wku.edu/theses/1155.
Повний текст джерелаPayne, Rosara Faith. "Investigation of radiological contamination of soil samples from Idaho National Laboratory." Diss., Online access for everyone, 2006. http://www.dissertations.wsu.edu/Dissertations/Summer2006/r%5Fpayne%5F053106.pdf.
Повний текст джерелаMacDonald, Julian. "Analysis of '1'3'7Cs contamination in soil using in-situ gamma spectrometry." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297869.
Повний текст джерелаKeatinge, Zoe Alexandra Frances. "Soil contamination in urban Tyneside : a chemical and biological risk assessment." Thesis, University of Newcastle Upon Tyne, 2006. http://hdl.handle.net/10443/233.
Повний текст джерелаMo, Jialin. "Soil Amended with Calcium-Magnesium Immobilizing Agent against Natural Arsenic Contamination." Kyoto University, 2019. http://hdl.handle.net/2433/242786.
Повний текст джерелаKnewtson, Sharon Joy Blanton. "Studies in vegetable and high tunnel production on the Central Great Plains." Diss., Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/926.
Повний текст джерелаHadebe, G. P., and der Westhuizen C. Van. "The impact of soil compaction on the vegetative growth of carrots (Daucus carota, var. Sativas) planted in loosened and unloosened soil in the Eastern Free State." Interim : Interdisciplinary Journal, Vol 4, Issue 2: Central University of Technology, Free State, Bloemfontein, 2005. http://hdl.handle.net/11462/438.
Повний текст джерелаThis study focuses on trials conducted on plots in the Leratong and Mpho vegetable gardens in the Eastern Free State. The aim was to investigate the possible impact of soil compaction on the growth of carrots planted on loosened (treated) and unloosened (untreated) soil. Aspects such as sprouting, vegetative length after 14 days of sprouting and diameter, as well as the length and mass of carrots after harvesting, were observed and compared between the treated and untreated carrot plots. Although there was no significant (P>0.05) difference between the two soil management practices applied in all locations, as well as the vegetative growth in the locations, a significant (P<0.05) difference between the length of carrots from the treated and the untreated plots was observed.
Fokin, Maria. "Efficiency of soil washing in hydrocarbon removal: the role of temperature, surfactant concentration and soil mineralogy." Doctoral thesis, Urbino, 2020. http://hdl.handle.net/11576/2675698.
Повний текст джерелаHu, Junli. "Risk assessment and mycorrhizal remediation of cadmium contamination in vegetable farms around the Pearl River Delta, China." HKBU Institutional Repository, 2013. http://repository.hkbu.edu.hk/etd_ra/1484.
Повний текст джерелаDodds, Heather Anne. "An investigation into vanadium contamination of soil and its effects on plants." Master's thesis, University of Cape Town, 1994. http://hdl.handle.net/11427/17002.
Повний текст джерелаThis study constitutes a preliminary assessment of the behaviour of effluent-associated vanadium, and its possible effects on the biotic components of land treatment sites, used for the disposal of liquid industrial wastes from a chemical plant in the eastern Transvaal. A review of the literature showed that although the emission of vanadium into the environment is on the increase, very little information is available regarding its behaviour and impact as an environmental pollutant. This study is therefore important not only in the context of the land treatment operation in question, but clearly in a more universal context as well. The study involved a three-phase approach to the problem. Firstly, vanadium sorption was considered in four soils encountered on the sites in question. Secondly, an investigation was conducted into the potential toxicity of vanadium to relevant plant species. Finally, the potential inhibition of soil biological activity at increasing levels of vanadium was examined, although the results of this experiment were inconclusive.
Randima, Livhuwani Priscilla. "Rhizosphere microbial diversity in PAH's contaminated and uncontaminated soil." Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-11302009-195201/.
Повний текст джерелаChoi, Chung-ming, and 蔡頌明. "Land contamination and its remediation methods: a case study in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B3125312X.
Повний текст джерелаBundy, J. G. "The use of biological methods for the assessment of oil contamination and bioremediation." Thesis, University of Aberdeen, 1999. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU602050.
Повний текст джерелаThöming, Gunda. "Soil application of neem products in IPM controlling thrips (Thysanoptera: Thripidae) in vegetable crops /." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=979446007.
Повний текст джерелаDavis, Cathryn Joyce. "Cover crops for soil health and forage." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/34537.
Повний текст джерелаDepartment of Agronomy
DeAnn R. Presley
Cover crops have numerous benefits and while cover crops have been used for centuries, currently there are few producers in Kansas growing them and so there is a need for additional research on how cover crops affect soil properties, and on the potential for utilizing cover crops as forage. Two studies are presented in this thesis. The first study evaluated the use of cover crops in a vegetable production system as compared to a fully tilled control. This study evaluated soil physical properties in the form of wet aggregate stability and infiltration, and microbial properties by soil microbial biomass carbon (MBC). Over the three year study, the most pronounced differences observed were in the wet aggregate stability between the cover crop and control treatments where the cover crop treatments had better soil aggregation compared to the control. At the conclusion of the study, there was not a difference between fall and spring planted cover crop treatments. The second study evaluates species composition and forage quality of various combinations of multi-species cover crop mixtures. This study evaluated sixteen treatments, each consisting of a three-way mixture of a brassica (turnip or radish), grass (rye, wheat, barley, oat), and a legume (berseem clover or Austrian winter pea). Species composition analysis found that the brassica species dominated the mixtures (60-80% by mass on a dry weight basis) in 2014 while the grass species were dominant (62 – 67%) in 2015. Overall all treatments produced prime quality forage (as compared to hay values), however some treatments cost significantly more to plant than others. Therefore an economic analysis compared the treatments and found that the treatments containing turnips and oats generally provided the best return on investment given that both of these species were among the cheapest to plant and produced moderate to high biomass compared to the other treatments. The results of these projects point to the potential benefits that cover crops can have for producers interested in improving soil or utilizing cover crops for forage.
Austin, Peter Dalton. "An Evaluation Of Vermicompost As A Fast-Acting Nitrogen Amendment To Mitigate Nitrogen Deficiencies In Organic Vegetable Production." ScholarWorks @ UVM, 2015. http://scholarworks.uvm.edu/graddis/505.
Повний текст джерелаKorre, Anna. "A methodology for the statistical and spatial analysis of soil contamination in GIS." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266111.
Повний текст джерелаMetwaly, Hassan Ali Hassan. "A study of groundwater contamination and bioremediation treatment using natural soil and vegetation." Thesis, University of Glasgow, 1999. http://theses.gla.ac.uk/2851/.
Повний текст джерелаSun, Chin-Cheng 1960. "A stochastic approach for characterizing soil and groundwater contamination at heterogeneous field sites." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/46140.
Повний текст джерелаMcGinley, Susan. "Remediating Soil and Groundwater Contamination: Tools and Strategies that are Making a Difference." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/622207.
Повний текст джерелаBirnstingl, Jeremy G. A. "An investigation into bioremediation techniques applied to polycyclic aromatic hydrocarbons in a manufactured gas plant soil." Thesis, Lancaster University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364323.
Повний текст джерелаTesten, Anna Louise. "Participatory Research to Improve Soil and Plant Health on Vegetable Farms in Tanzania and Ohio." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1491990803745543.
Повний текст джерелаDehzoei, Ali Mostafavi. "Analytical methods and instrumentation for the determination of organophosphorus pesticides in fruit and vegetable substrates." Thesis, University of Salford, 1991. http://usir.salford.ac.uk/14745/.
Повний текст джерелаPincus, Lauren Michelle. "Increasing Indigenous Vegetable Yield and Nutritional Quality through Traditionally- and Scientifically-Informed Soil Fertility Management." Thesis, University of California, Davis, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3723701.
Повний текст джерелаSmallholder farms in central Uganda do not reach their agronomic potential in large part due to declining soil fertility. Continuous cultivation and soils that are susceptible to degradation lead to yield declines that threaten household food security. Improvements in soil management are needed to produce both the quantity and quality of food required to reduce food insecurity. However, this requires active farmer participation in the identification and evaluation of different soil management strategies. On-farm and participatory approaches to research were used to evaluate the potential benefits of using Integrated Soil Fertility Management (ISFM) to improve the quantity and nutritional quality of an indigenous vegetable crop, Solanum aethiopicum or nakati, in Uganda's Lake Victoria Crescent. There is increasing recognition of the complementary roles organic and mineral fertilizers play in both short- and long-term soil management. ISFM emphasizes strategically targeted mineral fertilizer use combined with organic inputs to ensure fertilizer use efficiency and crop productivity given the limited availability of all nutrient resources in smallholder systems. Greater yield benefits can be achieved with the combined application of organic and mineral fertilizers compared to either resource applied alone. The ISFM framework also recognizes the influence of social factors on organic and mineral input management. A greater understanding of farmers' soil management decision-making process can guide the development of robust solutions to declining soil fertility.
Yield responses of nakati to organic (composted cow manure) and mineral fertilizers (urea), applied separately and in combination, were measured on farmer-managed plots to evaluate the efficacy of using IFSM on indigenous vegetables. Yield benefits from combined fertility sources were only observed under high fertility application rates with little difference between single or combined sources observed at low fertility rates. Low soil pH led to a significant decline in yields. Yields significantly increased when farmers actively participated in the trials, demonstrating the importance of overall good agronomic practices in achieving yield responses to fertilizer applications.
Measuring the effect of edaphic factors and fertility management strategies on the nutritional value of nakati indicated that uptake of nitrogen and micronutrients were affected primarily by soil pH and fertilizer nitrogen source. Foliar iron and zinc concentrations decreased significantly as soil pH increased, but other soil properties did not affect foliar nutrient concentrations. Foliar nitrogen increased significantly with the use of mineral fertilizer. The practical implications of this are most likely overshadowed when mineral fertilizer applications lead to increasing biomass and foliar nitrogen concentrations are diluted. Smallholder farmers can best attain nutritional benefits from nakati by increasing yields rather than modifying soil environments or fertilizer practices.
A participatory approach was used to document the knowledge and perceptions of farmers regarding their soils and soil management practices. Farmers participated in an ISFM demonstration program where they were exposed to Western scientific soil concepts. Pre-program focus group discussions were used to analyze farmers' existing soil knowledge and perceptions followed by participant observation, post-program interviews and focus group discussions to evaluate if and how scientific soil concepts were assimilated into farmers' soil knowledge. Farmers shared many 'structural similarities' with scientists in how they perceive soil, yet these similarities were often not recognized and utilized when scientists talked to farmers about soil. Thus potentially beneficial technologies, such as the use of mineral fertilizer as part of an ISFM framework, could be at odds with farmers' existing perceptions of fertilizer and remain an underutilized tool in soil fertility management.
Merkley, Brett J. "Sources and Pathways of Lead Contamination in Urban Community Gardens in Toledo, Ohio." Bowling Green State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555621213052896.
Повний текст джерела