摘要
普通尿素与包膜尿素掺混施用能提高水稻产量,50%普通尿素掺混50%包膜尿素在水稻上施用产量最高。水稻产量增加主要是通过增加亩穗数形成的。50%普通尿素掺混50%包膜尿素施用的水稻氮肥利用率最高。包膜尿素和普通尿素掺混施用可以促进生育早期和中期养分均衡释放,保证水稻最重要的生育前期和中期养分均衡供给,从而提高氮肥利用率,进而提高水稻产量。
urea and coated urea mixed fertilizer could increase the yield of rice, and the yield of rice was the highest when mixture of 50% common urea and 50% coated urea was applied. The yield of rice increase was mainly due to increasing of number of ears per mu. While 50% common urea mixed with 50% coated urea, the Nitrogen use efficiency was the highest. When coated urea mixed with common urea, nutrient balanced released in the early and middle growth period, which guarantee nutrient supply in the most important early and middle growth of rice. So the Nitrogen use efficiency improved and the yield of rice increased.
出处
《吉林农业科学》
CSCD
北大核心
2014年第5期34-37,共4页
Journal of Jilin Agricultural Sciences
关键词
包膜尿素
氮肥利用率
水稻
Coated urea
Nitrogen use efficiency
Rice
