摘要
杂交早稻和晚稻的需氮量与N利用率的试验结果表明：最适宜氮肥施用量为157.5 kg/hm2（纯N）,表现为N肥利用率较高,单产水平较高。不施氮肥处理的产量下降1380～3015 kg/hm2。
The results of field experiment in the nitrogen requirement and nitrogen utilization efficiency of hybrid early rice and late rice showed that the optimal application rate of pure nitrogen was 157.5 kg/hm2;under this condition,the nitrogen utilization efficiency and per unit area yield were higher.The rice yield in the treatment without nitrogen fertilizer application was decreased by 1380 ～ 3015 kg/hm2.
出处
《江西农业学报》
CAS
2009年第12期49-51,共3页
Acta Agriculturae Jiangxi
基金
国家水稻产业技术体系项目
关键词
杂交早稻
杂交晚稻
需N量
N肥利用率
产量
Hybrid early rice
Hybrid late rice
Nitrogen requirement
Utilization efficiency of nitrogen fertilizer
Yield
