Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Soil incubation"”.
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Effect of Synthetic Chelating Agent Application to Soils on Phosphorus Availability
… to crops due to immobilization of P in acidic soils through forming chemical bonds with iron (Fe) and aluminum (Al) amorphous oxides. Organic chelating agents form strong bonds with metals in soil and may reduce P binding with Fe and Al. Ethylenediamine tetraacetic acid (EDTA), hydroxyethyl …
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Investigating dissolved organic matter cycling in High Arctic ponds and soils
… in environmental conditions, such as ponds and soils. Chapter 2 presents a study of environmental conditions and molecular structure as controls on the lability of DOM in six High Arctic ponds at the Cape Bounty Arctic Watershed Observatory (CBAWO) through short-term incubation experiments, …
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Impact of Manure Management Practices on the Environmental Fate of Antibiotics in Manure-Applied Fields
… resistance genes from animal manure applied to soil as fertilizer are now among the most concerned contaminants in soil. The widespread use of antibiotics in livestock might amplify the risk of developing antibiotic resistance, causing once treatable diseases to turn deadly. The World Health …
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Linking soil respiration to hydrologic conditions and climate change
Respiration of organic carbon in soils is one of the largest terrestrial sources of atmospheric CO2 and shifts in the rate of this flux poses one of the largest potential impacts on global warming. Previous studies have found that temperature and soil moisture contents exert first order controls on …
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Nitrification inhibition by metalaxyl as influenced by pH, temperature, and moisture content in three soils
… inhibit nitrification under a broad range of soil physical and environmental conditions prevalent in the tobacco producing areas of Virginia. The influence of soil type, soil pH, soil temperature, and soil moisture on inhibition of nitrification by metalaxyl (1 mg kg⁻¹) were investigated in …
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Utilization of aqueous product generated by hydrothermal carbonization of waste biomass
… crop production was evaluated through studies of soil microbial effects and impacts on seed germination and early plant growth. These studies confirmed bio-toxicity effects of HTC filtrate on agricultural soil microbes at high application rates. On the other hand, lower rates of application …
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Pressurized Hot Water and DTPA-Sorbitol, Viable Alternatives for Soil Boron Extraction
… water and DTPA-Sorbitol are two relatively new soil boron (B) extraction methods with potential to replace the cumbersome hot water extraction. The objective of this research is to produce data in support of acceptance or rejection of these two alternative B extractions. The three soil tests …
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Sub-Antarctic plant-soil interactions in a changing world: plant N acquisition and growth under warming on Marion Island
… strong abiotic (e.g., temperature) controls over soil decomposition processes result in N-limited plant productivity and soils replete in organic N (oN, e.g., amino acids) but not inorganic N (iN, i.e., NH4 + and NO3 - ). Recent advances in our understanding of plant N use have shown that cold …
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Fate and behaviour of metformin and its transformation product guanylurea in soil-water systems
… understanding the fate of MET and GUA in the soil environment is crucial to assessing their risk to the wider ecosystems. Forced degradation studies of MET and GUA indicated that combined hydrolysis and photolysis contributed to <30% degradation at neutral pH. Hydrolysis of MET was <16% for …
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Phosphorus Transport and Distribution in Kentucky Soils Prepared Using Various Biochar Types
… by day. Phosphorus transfer from agricultural soils is an important environmental issue that is being closely observed as the transport of phosphorous to water bodies is adversely affecting water quality due to accelerated eutrophication. It is important to establish phosphorous models that …