搜索结果: 1-2 共查到“农学总论 NH3-N”相关记录2条 . 查询时间(0.062 秒)
追氮方式对夏玉米土壤N2O和NH3排放的影响
追氮方式 N2O排放 氨挥发 硝化抑制剂(DCD) 土壤NO2--N累积
2017/9/26
【目的】研究氮肥与硝化抑制剂撒施及条施覆土三种追施氮肥方式下土壤N2O和NH3排放规律、 O2浓度及土壤NH4+-N、 NO2--N和NO3--N的时空动态,揭示追氮方式对两种重要环境气体排放的影响及机制。【方法】试验设置3个处理: 1)农民习惯追氮方式—撒施(BC); 2)撒施添加10%的硝化抑制剂(BC+DCD); 3) 条施后覆土(Band)。 3个处理均在施肥后均匀灌水20 mm。在夏玉米...
CO2, N2O and NH3 emissions from two different type of soils as affected by applications of dairy sewage sludge
brown soil carbon dioxide dairy sewage sludge grey-brown podzolic soil nitrous oxide
2008/11/21
A pot experiment with the dairy sewage sludge (DSS) was conducted under aerobic condition (60% WHC, water holding capacity) for a period of 240 days. The emissions of carbon dioxide (CO2), nitrous oxi...