摘要
为了培育和筛选出高产、高效的玉米新品种,于2011—2012年2 a对山西省普通春玉米品种区域试验的相关数据进行了分析研究。结果表明,2 a区域试验的平均产量为10 548 kg/hm2,氮效率平均为39.4 kg/kg,磷效率平均为161.5 kg/kg;4个试验点之间差异显著,氮效率最大相差68%,磷效率最大相差55%;品种间差异较大,氮效率最大相差63%,磷效率最大相差73%。分析各参试品种的氮磷效率差异,可为生产中高产高效施肥措施提供依据。
To select high-yield nutrient efficient maize varieties, relevant datum from 2011 to 2012 about common maize varieties in regional trials in Shanxi province were analyzed. The results indicated that the average grain yield of regional trail for the two years was 10 548 kg/hm2, the average N use efficiency （NUE） was 39.4 kg/kg, the average phosphorus use efficiency （PUE） was 161.5 kg/kg. The results of the four locations were significantly different. The most difference of NUE was 68%, and the most difference of PUE was 55%. The results of the cuhivars were significantly different. The maximum difference of NUE was 63% and the maximum difference of PUE was 73%. The nitrogen and phosphorus efficiency differences of all the tested varieties provided the basis for high yield and high efficien- cy fertilization measures in production.
出处
《山西农业科学》
2013年第10期1042-1045,共4页
Journal of Shanxi Agricultural Sciences
基金
山西省科技攻关项目(20120311002-8)
山西省科技产业化环境建设项目(2013071002-8)
关键词
山西省
玉米
产量
氮效率
磷效率
Shanxi province
maize
yield
nitrogen use efficiency
phosphorus use efficiency
