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Dissolved organic nitrogen : an overlooked pathway of nitrogen loss from agricultural systems?
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2009)
Conventional wisdom postulates that leaching losses of N from agriculture systems are dominated by NO₃⁻. Although the export of dissolved organic nitrogen (DON) into the
groundwater has been recognized for more than 100 ...
Global Research Alliance N₂O chamber methodology guidelines: Introduction, with health and safety considerations
(Wiley on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2020-09)
Non-steady-state (NSS) chamber techniques have been used for decades to measure nitrous oxide (N₂O) fluxes from agricultural soils. These techniques are widely used because they are relatively inexpensive, easy to adopt, ...
Potential environmental benefits from blending biosolids with other organic amendments before application to land
(Crop Science Society of America, American Society of Agronomy, and Soil Science Society of America, 2017-05-18)
Biosolids disposal to landfill or through incineration is wasteful of a resource that is rich in organic matter and plant nutrients. Land application can improve soil fertility and enhance crop production but may result ...
Dairy farm effluent effects on urine patch nitrous oxide and carbon dioxide emissions
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2005)
Dairy farm effluent (DFE) comprises animal feces, urine, and wash-down water collected at the milking shed. This is collected daily during the milking season and sprayed onto grazed dairy pastures. Urine patches in grazed ...
Assessing the impact of non-urea ruminant urine nitrogen compounds on urine patch nitrous oxide emissions
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2018-07)
Urea, the dominant form of N in ruminant urine, degrades in soil to produce N2O emissions. However, the fate of non-urea urine N compounds (NUNCs) in soil and their contribution to urine patch N2O emissions remain unclear. ...
Effect of pine waste and pine biochar on nitrogen mobility in biosolids
(Crop Science Society of America, American Society of Agronomy, and Soil Science Society of America (ACSESS), 2016-01)
Humanity produces ~27 kg of dry matter in biosolids per person per year. Land application of biosolids can improve crop production and remediate soils but may result in excessive nitrate N (NO₃⁻N) leaching. Carbonaceous ...
The impact of relict organic materials on the denitrification capacity in the unsaturated-saturated zone continuum of three volcanic profiles
(The Crop Science Society of America, the American Society of Agronomy and the Soil Science Society of America, 2013-01)
The denitrification capacity of wetlands, riparian zones, and aquifers in glacial outwash areas is well documented, but little or no information exists for volcanic profiles, particularly those containing relict organic ...