秸秆还田后水稻生长需氮量研究
Research on Amount of Nitrogen Necessary for Rice Growth after Returning Straw to Fields
许爱霞 1于倩倩 1王艳蓉 1李莲1
作者信息
- 1. 江苏省泰州市姜堰区农业委员会,江苏泰州225500
- 折叠
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/hm2时,产量最高,达9 600.90 kg/hm2.[结论]秸秆还田后配施315 kg/hm2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.
Abstract
[Objective] To select the best scheme of nitrogen fertilizer application after returning straw to fields.[Method] Seven straw mulching 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 concentration 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.
关键词
秸秆还田/氮肥/水稻生长Key words
Returning straw to fields/Nitrogen fertilizer/Rice growth引用本文复制引用
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据