摘要
[目的]筛选秸秆还田配施化学氮肥最佳方案。[方法]试验设置7个秸秆还田配施化学氮肥方案,考察不同处理对土壤养分、水稻产量及其结构的影响。[结果]秸秆还田后施纯氮315 kg/hm^2时,产量最高,达9 600.90 kg/hm^2。[结论]秸秆还田后配施315 kg/hm^2氮能满足秸秆腐解与水稻生长的需要,该方案具有广泛的应用价值。
[ Objective]To select the best scheme of nitrogen fertilizer application after returning straw to fields. [ Method] Seven straw mulc-hing plus nitrogen fertilizer treatments were conducted in the experiment, the effects of different treatments on soil nutrients, rice yield and structure were investigated. [ Result] The yield would be the highest and up to 9 600. 90 kg/hm2 when pure nitrogen was applied at a concen-tration of 315 kg/hm2 after straw mulching. [ Conclusion] Application of 315 kg/hm2 nitrogen fertilizer after returning straw to fields can meet the needs of straw decomposition and rice growth.
出处
《安徽农业科学》
CAS
2017年第31期23-24,28,共3页
Journal of Anhui Agricultural Sciences
关键词
秸秆还田
氮肥
水稻生长
Returning straw to fields
Nitrogen fertilizer
Rice growth
