玉米品种新科19高产栽培模式研究

Study on Cultivation Model of Maize Hybrid Xinke19

采用3因素5水平二次正交旋转组合设计,研究播期、密度、施氮量对玉米品种新科19产量形成的作用效应,建立回归模型并分析各因子的作用规律。结果表明,施氮量对新科19产量影响最大;当密度60 000株/hm2、播期6月5日、施氮量450 kg/hm2时,达到最高产量13 283.53 kg/hm2,为最佳组合。

Quadratic orthogonal rotation design of three factors is applied to study the effect of sowing date,density and nitrogen to maize hybrid Xinke19. The results show that nitrogen is the most important factor for yield. Maize production could achieve the high yield goal 13 283. 53 kg / hm2 when sowing date,density and nitrogen were 60 000 plants / hm2,June fifth,450 kg/ha,respectively.