Dissertations / Theses on the topic 'Soil organic amendment'
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Bright, Angela. "Organic amendment of soil to combat root pathogens /." [St. Lucia, Qld.], 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16752.pdf.
Full textLayman, Rachel Montgomery. "Rehabilitation of Severely Compacted Urban Soil to Improve Tree Establishment and Growth." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/76910.
Full textMaster of Science
Christel, Dana Mae. "The Use Of Bokashi As A Soil Fertility Amendment In Organic Spinach Cultivation." ScholarWorks @ UVM, 2017. http://scholarworks.uvm.edu/graddis/678.
Full textNoble, Helen Louise. "The effect of organic amendment on the environmental fate of pharmaceuticals in soil." Thesis, University of York, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519838.
Full textBendfeldt, Eric S. "Dynamics and Characterization of Soil Organic Matter on Mine Soils 16 Years after Amendment with Topsoil, Sawdust, and Sewage Sludge." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/35805.
Full textMaster of Science
Merritt, Karen A. "Early Stage Humification During Amendment Decomposition and its Influence on Cu-Binding Capacity of Dissolved Organic Carbon." Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/MerrittKA2002.pdf.
Full textAustin, 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.
Full textFajardo, Gabriela Isabel. "Physical and Chemical Soil Properties of Ten Virginia Department of Transportation (VDOT) Mitigation Wetlands." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/31304.
Full textMaster of Science
Kane, David. "Evaluating phosphorus availability in soils receiving organic amendment application using the Diffusive Gradients in Thin-films (DGT) technique." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8001.
Full textAbdullahi, Yusuf Ahmed. "Optimisation of anaerobic digestion of organic solid waste for the production of quality compost for soil amendment." Thesis, Abertay University, 2008. https://rke.abertay.ac.uk/en/studentTheses/f694b161-4d15-4585-8018-64a7cf714480.
Full textYou, Rui. "The occurrence of contaminants in crops grown under organic soil amendments and peri-urban soils: phytotoxicity and human health implications." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/671348.
Full textLa agricultura moderna ha estado buscando continuamente métodos efectivos para satisfacer la demanda de alimentos que aumenta exponencialmente a nivel mundial. La aplicación de residuos orgánicos como fertilizante o enmienda de suelo es una medida ampliamente aceptada, ya que suministra nutrientes de manera eficiente y rápida a los cultivos. De hecho, desde 2015, la Comisión Europea ha propuesto un plan de economía circular que fomenta la enmienda del suelo con biosólidos. No obstante, la presencia de una amplia gama de contaminantes como elementos traza (ET), contaminantes orgánicos y contaminantes emergentes como antibióticos (AB) y genes de resistencia a antibióticos (ARG), ha sido reportada en algunos fertilizantes orgánicos. Las verduras pueden incorporar los contaminantes procedentes de suelos fertilizados con residuos orgánicos, amenazando la salud humana. Por esta razón, es necesaria la evaluación de los riesgos que puede provocar la aplicación de estos residuos orgánicos. Los fertilizantes orgánicos más utilizados son los desechos de origen animal (estiércol), el compost (fuentes vegetales o desechos de alimentos) y los desechos urbanos (lodos de depuradora y residuos domésticos). Actualmente, no existe ningún estudio que evalúe la incorporación de ET y AB por parte de las plantas con estos tres tipos de fertilizantes orgánicos, ni tampoco el impacto de la aplicación repetida de fertilizantes orgánicos sobre las mismas parcelas. Además, esta aplicación repetida de lodos de depuradora resultaría en la acumulación de Zn y Cu en el suelo modificado, y su presencia puede influir en la incorporación de otros contaminantes. Por tanto, en esta tesis doctoral se abordan tres aspectos relacionados con los contaminantes en hortalizas en diferentes actividades agrícolas: (1) aplicación de diferentes dosis de distintos residuos orgánicos a suelos de cultivo, que tiene como objetivo evaluar el efecto de esta fertilización en la incorporación de ET y AB en la hortaliza, (2) aplicación reiterada de residuos orgánicos en suelos de cultivo y seguimiento de la concentración de ET en hortalizas durante diferentes ciclos productivos, cuyo objetivo es evaluar el impacto de la fertilización orgánica a largo plazo, y (3) aplicación de lodos de depuradora y diferentes cantidades de Zn y Cu al suelo, con el objetivo de evaluar el efecto de estos metales sobre la acumulación de otros contaminantes como ET, AB y ARG en las hortalizas. Además, en todos los casos se evaluó el riesgo para la salud humana asociado al consumo de hortalizas. En áreas periurbanas, el suelo agrícola puede recibir la contaminación potencial de contaminantes procedentes de suelos fertilizados con residuos orgánicos, pero también los contaminantes potenciales derivados de las actividades urbanas. Estos contaminantes pueden influir en el crecimiento y desarrollo de los vegetales. En esta tesis, también se desarrolló un método simple y rápido para evaluar la contaminación del suelo. Para ello se utilizaron dos índices de crecimiento de plantas (tasa de germinación de semillas y alargamiento de raíces en la etapa inicial) en tres semillas de hortalizas para evaluar la contaminación química del suelo en agricultura de proximidad.
Modern agriculture has been continually searching for effective methods to meet the exponentially increasing food demand. Amending soil with fertilizers has been widely adopted, as it could efficiently and fast supply nutrients to vegetables. Since 2015, the European Commission has proposed a circular economy plan which encourages the soil amendment with biosolids. Nevertheless, the presence of a wide range of contaminants, such as trace elements (TEs), organic pollutants, and emerging pollutants such as antibiotics (ABs) and antibiotic resistance genes (ARGs), has been widely reported in many organic fertilizers. Vegetables can absorb the contaminants from the amended soil, and further threaten human health. For this reason, risk assessment of organic fertilizer applications is necessary. The most commonly used organic fertilizers are animal-based waste (manure), compost (plant sources or food waste), and urban waste (sewage sludge and household waste). Currently, no study evaluates the plant uptake of TEs and ABs under these three organic fertilizers, nor research evaluates the impact of repeated organic fertilization. Additionally, multiple application of sewage sludge might result in the accumulation of Zn and Cu in amended soil, and their presence would influence uptake of other contaminants. Therefore, in this doctoral thesis, three aspects related to the contaminants in vegetable under different agriculture activities are addressed: (1) amending soils with different doses of different organic fertilizers, which aims to assess the impact of organic fertilizers on the occurrence of TEs and ABs in vegetables, (2) repeated amending soil with organic fertilizers and monitoring the variation of TEs concentrations in vegetables of different productive cycles, which aims to assess the impact of long-term organic fertilization, and (3) amending soils with sludge and different amounts of Zn and Cu, which aims to assess the effect of Zn and Cu on the accumulation of TEs, ABs, and ARGs in vegetables. Furthermore, in every case the risk to human health associated with the consumption of vegetables was evaluated. In peri-urban area, the agricultural soil may receive the potential pollution from fertilizer, but also from potential contaminants due to urban activities. Those pollutants would influence the growth and development of vegetables. In this thesis, a simple and rapid method to assess soil pollution was also developed. Here, we use two plant growth indexes (seed germination rate and root elongation at the initial stage) for three vegetable seeds to assess soil chemical contamination on proximity agriculture.
Universitat Autònoma de Barcelona. Programa de Doctorat en Ciència i Tecnologia Ambientals
Reppun, Frederick A. W. L. "Invasive Marine Algae as a Soil Amendment for Island Farmers: Agronomic and Ethnographic Assessment of Implications for Nutrient Management." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462555252.
Full textCooke, Joshua. "Étude et prédiction de l’impact des paramètres de digestion anaérobie sur la composition des digestats et leur effet sur la stabilité structurale des sols." Electronic Thesis or Diss., Rennes, Agrocampus Ouest, 2023. http://www.theses.fr/2023NSARB370.
Full textDemand for renewable energy is driving rapid growth in the agricultural anaerobic digestion (AD) sector. Digestates, by-products from AD, are used as organic fertilisers and soil amendments. Yet, our understanding of the effects of the wide array of digestates produced on soil biological, chemical and physical processes is limited. Our objective was to investigate the impact of digestate application on soil physical health, through study of the aggregate stability (AS), a key indicator of soil resistance to crust formation and erosion. Laboratory testing of digestates from agricultural AD sites revealed that their short-term impact on soil AS may vary considerably. A proposed typology of impact categorises the likely effect of different digestates according to AD process parameters, as an aid to agronomic decision-making and AD plant conception. We determined digestate characteristics linked to changes in soil AS, andconsidered the mechanisms involved, including direct interactions between soil and mineral or organic components, and indirect stimulation of microorganisms by "bioaccessible" organic matter. While the short-term effects of digestate on silt soil AS in field trials were limited compared to climateinduced variations, there were no negative effects. Digestate application may even lead to a very gradual improvement in AS of silt loam soils over time. However, certain mineral-rich digestates can induce transient negative effects on AS in other soil contexts. These findings provide insight into the short-termimpacts of digestate on soil processes leading to aggregate stabilisation. Nevertheless, going forward, an integrated approach accounting for many issues surrounding digestate use in agriculture is required to achieve sustainable soil management
Winslow, Jonathan W. "Evaluation of Host Resistance and the Utilization of Organic Amendments to Manage Macrophomina Crown Rot of Strawberry in California." DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/2075.
Full textHossain, Mohamed Sarwar. "Effect of organic amendments on soil atmosphere." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31236.
Full textTvergyak, Jennifer Louise. "Organic By-Product Materials as Soil Amendments." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1339463187.
Full textYusran, Fadly Hairannoor. "Soil organic matter decomposition : effects of organic matter addition on phosphorus dynamics in lateritic soils." University of Western Australia. School of Earth and Geographical Sciences, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0120.
Full textPengthamkeerati, Patthra. "Soil physical and microbiological properties affected by soil compaction, organic amendments and cropping in a claypan soil /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3164537.
Full textXiao, Baohua. "The effects of soil organic matter heterogeneity on equilibrium sorption by soils and sediments /." Philadelphia, Pa. : Drexel University, 2004. http://dspace.library.drexel.edu/handle/1860/305.
Full textAhmad, Nor Ashikin. "Phosphorus Dynamics in Soils Amended with Recycled Organics." Thesis, Griffith University, 2017. http://hdl.handle.net/10072/365472.
Full textThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
Full Text
Nilsson, K. Sofia. "Modelling soil organic matter turnover /." Uppsala : Dept. of Ecology and Environmental Research, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s326.pdf.
Full textTran, Dao. "Identifying risks associated with organic soil amendments: microbial contamination in compost and manure amendments." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/27364.
Full textThuesen, Kevin (Kevin Andrew). "The Effects of Organic Surface Amendments on Soil Nutrients and Initial Tree Establishment." Thesis, University of North Texas, 1999. https://digital.library.unt.edu/ark:/67531/metadc277585/.
Full textDrietz, Thomas. "Using Organic Amendments to Stabilize Sand-based Athletic Fields During Turfgrass Establishment Period." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/31150.
Full textSeck, Mamadou Amadou. "Le compostage des coques d'arachide : Une technique permettant d'améliorer la qualité des sols saheliens." Nancy 1, 1987. http://www.theses.fr/1987NAN10035.
Full textSparke, Shaun P. "The influence of selected organic amendments on soil physiochemical properties : effects on soil erosion." Thesis, Liverpool John Moores University, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.546743.
Full textLucas, Shawn T. "MANAGING SOIL MICROBIAL COMMUNITIES WITH ORGANIC AMENDMENTS TO PROMOTE SOIL AGGREGATE FORMATION AND PLANT HEALTH." UKnowledge, 2013. http://uknowledge.uky.edu/pss_etds/24.
Full textSeech, Alan G. "Bioremediation of soil containing pentachlorophenol and polycyclic aromatic hydrocarbons using organic amendments." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ27468.pdf.
Full textZerkoune, Mohammed, Glenn Wright, and David Kerns. "Effect of Organic Amendments on Lemon Leaf Tissue, Soil Analysis and Yield." College of Agriculture, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/198114.
Full textZerkoune, Mohammed, Glenn Wright, and David Kerns. "Effect of Organic Amendments on Lemon Leaf Tissue, Soil Analysis and Yield." College of Agriculture, University of Arizona (Tucson, AZ), 2002. http://hdl.handle.net/10150/223674.
Full textTremante, Vincent Joseph. "The effects of organic soil amendments in bioretention soil mixes on the removal of total petroleum hydrocarbons." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1303141024.
Full textFulford, Anthony Michael. "Effect of Organic Amendments on Phosphorus Fractionation in a Lead-Contaminated Urban Soil." Available to subscribers only, 2009. http://proquest.umi.com/pqdweb?did=1791851001&sid=2&Fmt=2&clientId=1509&RQT=309&VName=PQD.
Full textWalker, Thomas Alexander Bruce. "The use of organic amendments in the reclamation of acidic coal mine waste." Thesis, University of Glasgow, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293389.
Full textVázquez, Rosa I. "Decomposition rates of organic amendments and soil organic matter fractions as indicators of soil quality : an on-farm study of organic and conventional dairy farms in Ohio /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488202678776313.
Full textNdlovu, Zibusiso. "Control of root knot nematodes (Meloidogyne Spp) using organic soil amendments and Pasteuria penetrans." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320134.
Full textFisher, Scott E. "The Effects of Different Soil Amendments on Fertility and Productivity in Organic Farming Systems." Ohio University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1319737408.
Full textKhairnar, Kaushal. "Effect of different organic amendments on soil quality, vines growth, grape production and wine quality of mechanically pruned vineyards." Master's thesis, ISA/UL, 2014. http://hdl.handle.net/10400.5/8632.
Full textThe experiment with an aim to study the effect of pruning types and effect of different types of organic amendments on soil quality, vine growth, grape production and wine quality was conducted in two sites located in Vilar and Sardoal region of Portugal. The pruning treatments included manual spur (MAN) and mechanical hedge (MEC) type of pruning and types of organic amendments applied were biochar (BIOC), municipal solid waste compost (RSUC), cattle manure (ESTR), sewage sludge (ETAR) and control treatment (TEST). The treatment effects were analyzed for chemical composition, mineral content and heavy metals content and sensorial analysis of wine samples. The analysis results show that there was no significant effect of type of pruning on wine composition except pH, total acidity, alcohol content, calcium and total nitrogen content of wine sample. Similar trend was also followed with the application of organic amendments; the composition of wine remained unchanged by the use of organic amendments except some effect on pH, total acidity, volatile acidity, total anthocyanins and potassium content of wine samples. There was no significant increase in the heavy metals content of wine samples after the treatment of organic amendment. The manual pruning generally showed higher content compared to mechanical pruning due to less number of bunches retained per shoots. Wine composition was more influenced by the site specific characters and climatic conditions than the effect of treatment applied. Sensory analysis along with chemical analysis shows that mechanical pruning can be used without having much significant effect on grape composition when sufficient yield compensation is achieved. Treatment which supplied higher amount of nitrogen (ETAR and ESTR) was generally marked by more negative sensory perception such as vegetal characters in wine. On the face of climate change and increased competitive pressure use of mechanical pruning can be good strategy to reduce the cost of grape production and organic amendment can be applied to soil with an aim of increasing organic matter contents of soil. But the care should be taken to avoid excessive supply of nitrogen in order to avoid negative effect on wine composition over longer period of time. So the supply of amendment should be managed according to vine and soil nutritional status
Park, Kee Choon. "Enzymatic activity, microbial diversity, and weed seed banks in soils receiving different organic amendments and the biological fertilizer EM(tm) /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3164535.
Full text(tm) after EM in title is for Trademark symbol. Typescript. Vita. Includes bibliographical references (leaves 120-142). Also available on the Internet.
Odlare, Monica. "Organic residues - a resource for arable soils /." Uppsala : Dept. of Microbiology, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200571.pdf.
Full textLennartsson, E. K. M. "Cultural control of take-all : The effect of mixed species cropping and organic soil amendments." Thesis, University of Bristol, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379661.
Full textCheng, Ka Yu. "Effects of surfactants and organic amendments on phytoremediation of polycyclic aromatic hydrocarbons (PAHs) contaminated soil." HKBU Institutional Repository, 2005. http://repository.hkbu.edu.hk/etd_ra/630.
Full textRaveendran, Ekarath. "Effect of organic amendments on soils, drainage waters and ground waters in the State of Bahrain." Thesis, University of Stirling, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317592.
Full textOtt, Emily Thomas. "Soil Genesis and Vegetation Response to Amendments and Microtopography in Two Virginia Coastal Plain Created Wetlands." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/83529.
Full textPh. D.
Nwachukwu, Olayinka Ibiwumi. "The use of organic materials as amendments in the remediation of soils contaminated by lead, copper and zinc." Thesis, Connect to e-thesis, 2007. http://theses.gla.ac.uk/847/.
Full textHarris, Mark Anglin. "Some organic amendments for heavy metal toxicity, acidity and soil structure in acid-sulphate mine tailings /." Title page, contents and abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09PH/09phh3148.pdf.
Full textde, Brito Luis Miguel Cortez Mesquita. "Organic composts as soil amendments to agriculutral land : quantitative studies on their effects on crop production." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386560.
Full textKollaras, Arthur E. "The autoclaving of municipal greenwastes as pre-treatment for use in soil enhancement /." [St. Lucia, Qld.], 2006. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19320.pdf.
Full textAbis, Letizia. "Study of the effect of organic waste products amendments (OWPs) and microbial diversity on volatile organic compounds (VOCs) emissions by soil." Electronic Thesis or Diss., Sorbonne université, 2019. http://www.theses.fr/2019SORUS443.
Full textVOCs emissions play a pivotal role on the atmospheric pollution. Biogenic sources of VOCs are between 10 and 11 times higher than VOC emissions from anthropogenic sources. Recently, the importance of the characterization of the VOC fluxes by soils and microorganisms has been highlighted. Instead, VOCs emissions from soil and microorganisms are possible precursors of the particulate matter and the O3 formation. This work is focused on the characterization of the VOCs emissions by soils amended with OWPs over the long and short terms application. The influence of the microbial diversity in soil on VOCs emissions was also analysed. VOC emissions were detected using the PTR-QiTOF-MS technique and all the experiments were performed under controlled laboratory condition using dynamic chambers for the detection of the VOCs emissions from samples. The results showed that different OWPs released different quantity of VOCs emissions and also the chemical and physical properties of the soil were linked to the emissions. Analyses on the influence of microbial biodiversity on VOCs emissions have shown that while the microbial diversity was higher VOC emissions by soils were lower. Furthermore, the diversity of the VOCs decreases when the VOCs emissions by soil are higher. Finally, the study of the dynamics of VOC emissions from microcosms amended with fresh OWPs, showed that the VOC emission flux increased in the first 49 hours after the OWP amendment, due to a disturbance of the microbial community in the soil
Bergschneider, Cara Renee. "Determining an Appropriate Organic Matter Loading Rate for a Created Coastal Plain Forested Wetland." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/34698.
Full textMaster of Science
Kumar, Vivek. "Hydro-Physical Characterization of Media Used in Agricultural Systems to Develop the Best Management Practices for operation of an Environmentally Sustainable Agricultural Enterprise." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/787.
Full text