新疆农业科学2011，Vol.48Issue(1)：86-93,8.
施肥深度、灌水条件和氨挥发监测方法对氮肥氨挥发特征的影响
Influence of the Fertilization Depth,Irrigation and the Ammonia Volatilization Monitoring Method on Ammonia Volatilization Characters of Nitrogen Fertilizer
摘要
Abstract
[ Objective and Method] The aim of this text was mainly to study the effect of the fertilizer depth, irrigation and the ammonia volatilization monitoring method on the loss of ammonia volatdization characters of nitrogen fertihzer and provide basis for evaluating resuIls of field in - situ monitoring test . [ Result] (1) On the light saline soil, ammonia volatilization rate and loss cumulation were decrease with increase of fertilization depth, ammonia volatilization decreased to below 2％ of nitrogen rate when nitrogen was applied to depth of 10 cm of soil, whieh could effectively control loss of ammonia volatilization of nitrogen; the duration of ammonia volatilization shorten with increase of fertilization depth; (2) Under postponing irrigation condition after fertilization , the ammonia volatilization loss of the high initial water content soil was greater than that of low initial water content soil; and under the equal conditions, the postponing irrigation could increase loss of ammonia volati1ization of nitrogen; and the loss of ammonia volatilization decreased with increase of irrigation amount; (3) The results of comparison of three methods of ammonia gas absorption showed that detection value of enclosure method was lower than that of air exhaust method and venting method;Under this Lest area and conditions, the monitoring results of air exhaust method were close to each other. [ Condusion] Whether the fertilization depth and the irrigation whether were consistent with local field operation, which was the key of ammonia volatilization measured value whether reflected the field true value; the mortitoring method had systematic influence on ammonia volatilization in field in - situ monitoring , results of enclosure method were on the low side, and whether the air exhaust method reflected the field true value was correlated with pumping speed; and the venting method need not dynamic, which was suitable for field multiprocessing experiment .关键词
氨挥发/施肥深度/灌水/氨挥发监测分类
农业科技引用本文复制引用
徐万里,刘骅,张云舒,汤明尧,王西和,唐光木..施肥深度、灌水条件和氨挥发监测方法对氮肥氨挥发特征的影响[J].新疆农业科学,2011,48(1):86-93,8.基金项目
国家自然科学基金项目(40361005) （40361005）
