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 7 of 7 for “"N-(n-butyl) thiophosphoric triamide"”.
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Methane Emissions and Ammonia Volatilization from Drill-Seeded, Delayed-Flood Rice on a Silt-Loam Soil in Arkansas
… with and without the urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT). A chamber-based method was used to measure methane fluxes and linear interpolation and numerical integration between individual sample dates was performed to determine seasonal emissions. Ammonia volatilization …
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Use of Stable Isotopes to Trace the Fate of Applied Nitrogen in Forest Plantations to Evaluate Fertilizer Efficiency and Ecosystem Impacts
… – no fertilizer, urea, urea treated with N-(n-butyl) thiophosphoric triamide (NBPT), coated urea + NBPT (CUF), polymer coated urea (PCU) ) during two application seasons (spring, summer) to: 1) compare fertilizer nitrogen (N) losses (see Chapter 2); 2) evaluate temporal N uptake patterns of …
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Dialing in the most corn-profitable and environmentally responsible nitrogen rate
… and urea treated with the urease inhibitor N-(n-Butyl) thiophosphoric triamide (NBPT)]. Measurements included grain yield, plant total N uptake (TNU), soil total inorganic N (TIN) at various depths within the top 90 cm, canopy sensing for N management, and N loss measurements of nitrate (NO3-N) …
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Rice Grain Yield and Nitrogen Uptake and Ammonia Volatilization from Urea as Affected by Urea Amendment and Simulated Rainfall
… effects of simulated rainfall amounts and N-(n-butyl) thiophosphoric triamide (NBPT) urease inhibitor rate on NH3 volatilization and rice growth. Three field experiments were conducted and NH3 volatilization was measured in two experiments for 11 days after urea application (DAU) in semi-open …
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An Integrated Approach for Nitrogen Management in Upland Cotton Production
… (TN), and Texas (TX). The EEF products were N-(n-butyl) thiophosphoric triamide (NBPT), nitrapyrin, and ESN. In the first set of experiments (N placement experiments), it was found that across soil types, subsurface placement of granular N source reduced NH3 volatilization by 58 – 81% and …
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Ammonia Volatilization, Urea Hydrolysis, and Urease Inhibition with the Application of Granular Urea in Agroecosystems
… during that period. The urease inhibitor N-(n-butyl) thiophosphoic triamide (NBPT) was the most effective ammonia volatilization control treatment and reduced ammonia losses 30-40% compared to urea in the laboratory trials. Urease was extracted from soybean residue and retained activity during …
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Ammonia emission from fertiliser application : quantification techniques and mitigation strategies
… De este modo, la efectividad del N-(n-butyl) thiophosphoric triamide (NBPT) y el phenil phosphorodiamidate (PPDA) para reducir las pérdidas de NH3 debidas a la fertilización con urea fue evaluada. Los resultados de este estudio mostraron que ambos inhibidores se mostraron efectivos, …