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Showing 1 to 11 of 11 for “"urease inhibitor"”.
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Reduction of ammonia emissions by applying a urease inhibitor in fattening pig houses
… to reduce ammonia emissions is the use of a urease inhibitor, which inhibits the enzyme urease and thus prevents the hydrolysis of urea, which in turn leads to a reduction in ammonia emissions. The inhibitor's potential to reduce ammonia emissions has already been demonstrated in cattle …
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Separation and Structure Characterization of Biologically Important Substances
An attempt was made to isolate urease inhibitors from commercial Yucca schidigera extract. Trans-3,3$\sp\prime$,5,5$\sp\prime$- tetrahydroxy-4-methoxystilbene was isolated and its structure was assigned. Biological tests indicated that it was a urease inhibitor, and that it was also active against …
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Preparation and Characterisation of Alginate Composite Beads and Investigations into their Potential Use in Environmental Applications
… and monitor the release properties of a urease inhibitor (NBPT) from different calcium alginate hydrogel beads. Four bead types were chosen for this study, calcium alginate, charcoal-loaded and bentonite-loaded calcium alginate, and polypyrrole-coated calcium alginate beads. The surface …
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The use of fertilizer nitrogen applications to increase productivity of soybean
… 44-0-0), urea + Limus (urea treated with the urease inhibitor Limus, 46-0-0), liquid urea-ammonium nitrate (UAN, 28-0-0), urea (46-0-0), and a mixture of ammonium nitrate, potassium nitrate, and ammonium sulfate (30-0-7-2S), along with an unfertilized control. When averaged across all …
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Methane Emissions and Ammonia Volatilization from Drill-Seeded, Delayed-Flood Rice on a Silt-Loam Soil in Arkansas
… preflood urea application 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. …
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Evaluation of Nitrogen Sources, Starter Fertilizers, and Amendments for No-Till Corn Production
… anhydrous ammonia amended with the nitrification inhibitor, nitrapyrin (which increased yields by 5 bu acre$\sp{-1}$). Surface-applied urea and UAN produced the same average yield, which was 6 bu acre$\sp{-1}$ lower than the nonvolatile ammonium nitrate source, and 4 bu lower than unamended …
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Ammonia Volatilization, Urea Hydrolysis, and Urease Inhibition with the Application of Granular Urea in Agroecosystems
… from coated granular urea; 2) determine if urease can be extracted from corn and soybean residues; 3) determine if differences in urease activity are present in corn and soybean residues; and 4) evaluate N content and yield of corn treated with surface-applied coated urea fertilizers. The …
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Dialing in the most corn-profitable and environmentally responsible nitrogen rate
… coated urea (ESN) 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 …
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Rice Grain Yield and Nitrogen Uptake and Ammonia Volatilization from Urea as Affected by Urea Amendment and Simulated Rainfall
… 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 chambers. Urea or NBPT-treated urea …
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Biosphere-atmosphere exchange of ammonia from a fertilized corn canopy in Central Illinois
… are attributed to a combination of the use of urease inhibitor and localized soil temperature and precipitation. Though general NH3 flux trends were similar between this study and those at non-Midwest sites, differences in short-term NH3 emission (i.e., hours to days) were found. REA …
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Ammonia emission from fertiliser application : quantification techniques and mitigation strategies
… the soil colloid and, more recently, the use of urease inhibitors have been encouraged the most. Urease inhibitors slow the hydrolysis of urea, thus limiting the pool of NH4+, potentially lost though NH3 volatilisation, within the soil solution. When evaluating any mitigation strategy an …