摘要
控释氮肥作为一种新型肥料近年来影响不断扩大,但控释氮肥在黑龙江省水稻生产上的应用研究报道较少。本试验在黑龙江省中部黑土区对控释肥在水稻生产上的应用效果进行了研究,结果表明:控释尿素与普通尿素搭配施用,与等养分普通尿素比较,可使水稻增产7.3%～15.7%,提高氮肥利用率17.7%～25.5%。搭配比例以控释尿素占总氮量的30%～50%为好。
In this experiment effect of controlled releasing urea on rice production was investigated in black soil areas in the central Heilongjiang Province. The results showed that the mixture of common urea and controlled releasing urea could increase 7.3 % - 15.7 % of rice yield and 17.7 % - 25.5 % of N use efficiency than only application of common urea. The best ratio of controlled releasing urea to total N was 30% - 50%.
出处
《作物杂志》
CAS
CSCD
北大核心
2009年第2期76-78,共3页
Crops
基金
“十一五”国家科技支撑计划《包膜控释肥料关键技术集成及产业化》课题(课题编号2006BAD10B07)
关键词
水稻
控释尿素
普通尿素
产量
氮肥利用率
Rice
Controlled releasing urea
Common urea
Yield
Nitrogen use utilization
