不同施肥量下玉米去留分蘖对产量及构成因素的影响

Effect of Tiller Removing or Remaining on Yield and Yield Components of Maize under Different Fertilization Amount

在吉林省东部湿润区,以先玉335为试验材料,针对不同施肥量下玉米去留分蘖处理对产量及构成因素进行研究。结果表明:去留分蘖不是影响收获产量的主要因素,生产中留分蘖能简化田间管理,具有节本增效的作用。氮磷钾肥施用比例是影响各处理产量及构成因素的主要因素,配施比例对去留分蘖产量及构成的影响较大。合理配施氮磷钾肥有利于提高玉米植株的生长及收获产量。

The study was carried out to study effect of tiller removing or remaining on yield and yield components of maize under different fertilization amount using ＇Xianyu 335＇ in the eastern humid region of Jilin Province as materials. The results showed that tiller removing or remaining was not main factor influencing the yield at harvest, and remained tiller could simplify the cultural practice, which could cut down cost and raise the outcome. The ratio of NPK fertilizer was the major factor which affected the yield and yield components among each treatment. Fertilizer proportion had bigger impact on yield and yield components with tiller removing or remaining. The rational fertilization of NPK tended to increase plant growth and harvest yield of maize.