【摘要】 采用五元二次正交旋转组合设计方法,研究不同播种期、种植密度、氮素水平、磷素水平、钾素水平对玉米新品种喜相伴99产量的影响,以找出不同栽培产量水平的优化栽培措施方案。结果表明,播种期、种植密度、施N量、施P₂O₅量、施K₂O量等与玉米产量回归相关显著,喜相伴99高产（7 500⁹ 750 kg/hm²）栽培方案为:3月4¹1日播种,种植密度5.18万⁵.79万株/hm²,按N、P₂O₅、K₂O比例约1∶0.5∶0.8施肥,施肥量为纯N 128.25²07.75 kg/hm²、P₂O₅ 67.05¹08.15 kg/hm²、K₂O 101.55¹71.00 kg/hm²。更多还原

【Abstract】 In this experiment,quadratic orthogonal regressive rotation design of five factors were used to study the effects of planting factors such as sowing date,density,nitrogen,phosphorus and potassium on the yield stability of maize variety Xixiangban 99. The results showed that sowing time,planting density,N application amount,P₂O₅ amount and K₂O amount were significantly correlated with yield of maize. If Xixiangban99 reaches the stable yield range of 7 500-9 750 kg/hm²,it needs to be sowed in March 4-11,and planting density is 51.8⁵7.9 thousand plants per hectare,and N is 128.25²07.75 kg/hm²,P₂O₅ is 67.05¹08.15 kg/hm² and K₂O is 101.55¹71.00 kg/hm². The ratio of N∶P₂O₅∶K₂O is 1∶0.5∶0.8. This study provided a theoretical basis for large area production of maize hybrids Xixiangban 99.更多还原