摘要
通过田间试验研究了氮肥运筹对春玉米产量、经济效益的影响,结果表明:氮肥运筹对春玉米产量和经济效益影响显著,以1/2 N作基肥+1/2 N作追肥处理获得最高产量3752 kg/hm2和最大经济效益15234元/hm2,同时氮肥利用率达到42.1%。
This experiment was conducted to study the influence of the distribution of N fertilizer applied on maize yield and profit. The results showed that rational distribution of nitrogen fertilizer promoted higher yield and profit. The treatment of half of N rate as basal fertilizer combined with the half of N rate as topdressing got the highest yield 3 752 kg/hm^2 and profit 15 234yuan/hm^2, and the efficiency of nitrogen fertilizer use of 42.1%.
出处
《山西农业科学》
2008年第11期67-70,共4页
Journal of Shanxi Agricultural Sciences
基金
国家科技"十一五"支撑项目(2006BAD25B01)
中加合作项目(NMBF-Shanxi-2007)
关键词
氮肥运筹
玉米
产量
效益
氮肥利用率
Nitrogen application
Maize
Output
Benefit
N use efficiency
