摘要
综述了东北地区高产、超高产春玉米在养分投入量和投入方式方面的现状及其影响因素,并进行了展望。结果表明要获得11 000 kg/hm2以上的产量,郑单958的适宜密度在5.5～6.5万株/hm2,先玉335的适宜密度为6.5～8万株/hm2,有机肥20～30 t/hm2,施肥量应为N 200～240 kg/hm2、P2O5 67～100 kg/hm2、K2O 67～100 kg/hm2、ZnSO4.7H2O 15～20 kg/hm2。
The situation and influence factors on amount and way of nutrient input of high yield spring maize in Northeast Region were summarized in the paper. The results showed that to get yield of more than 11000 kg/hm^2, proper density of ＇Zhengdan 958＇ is 55000-65000 plants/hm^2, suitable density of ＇Xianyu 335＇ is 65000-80000 plants/hm^2, organic fertilizer is 20-30t/hm^2, fertilizer application rate is 200-240kg N/hm^2, 67-100kg P2O5/hm^2, 67-100kg k20/hm^2, 15-20kg ZnSO4o7HzO/hm^2.
出处
《吉林农业科学》
CSCD
北大核心
2012年第1期34-37,共4页
Journal of Jilin Agricultural Sciences
关键词
春玉米
高产高效
养分管理
施肥量
Spring maize
High yield and high efficiency
Nutrient management
Fertilizer rate
