Gaseous Losses of Nitrogen Other Than Through Denitrification

作者：Darrell Wayne Nelson · 发表于：Agronomy monograph/Agronomy · 年份：1982 · DOI：10.2134/agronmonogr22.c9 · 被引用次数：154 · 研究领域：Soil Carbon and Nitrogen Dynamics、Soil and Water Nutrient Dynamics、Crop Yield and Soil Fertility

Research on processes leading to gaseous loss of nitrogen from soils has been stimulated by the accumulation of evidence indicating that crop recovery of fertilizer nitrogen is often greater than fifty percent of that applied and that a substantial amount of nitrogen added to soils is apparently volatilized during the growing season. Bacterial denitrification may account for some of the nitrogen deficits. Direct loss of ammonia during and immediately following anhydrous ammonia application to soils may be essentially eliminated by proper management. Anhydrous ammonia should be injected at an appropriate depth into the soil as determined by soil type. Ammonia losses resulting from surface applications can be minimized if the fertilizer is applied to moist soils (not saturated) immediately prior to rainfall during periods of relatively low temperature. Control of gaseous nitrogen losses resulting from chemodenitrification reactions in soil is difficult.