摘要
通过田间试验,探讨了不同用量控释尿素对冬小麦农艺状况、产量和氮肥利用率的影响。结果表明:等氮量控释尿素处理下的冬小麦农艺性状多数优于普通尿素处理,尿素施用量减少30%以后也能达到普通尿素100%用量的产量水平,且氮肥利用率显著提高。运用控释肥可以实现一次性施肥,既能节约用工成本,又能提高小麦产量和氮肥利用率,应用前景广阔。
The effects of controlled-release urea on the agronomic characters,yield and nitrogen use efficiency of wheat were studied by field experiment.The results showed that the agronomic characters of controlled-release urea were better than that of normal urea with equal nitrogen amount.When N was at the level of 180 kg/ hm2,the yield of wheat could reach the level with normal urea amount,and the nitrogen use efficiency increased significantly.The application of controlled-release urea could save labor cast,increase the yield and nitrogen use efficiency,which had a broad application prospect.
出处
《河北农业科学》
2010年第9期56-57,79,共3页
Journal of Hebei Agricultural Sciences
基金
金正大生态工程股份有限公司
国际植物营养研究所(IPNI)
关键词
控释肥
氮肥
氮肥利用率
冬小麦
产量
Controlled-release fertilizer
Nitrogen fertilizer
Nitrogen use efficiency
Winter wheat
Yield
