种植密度和施肥量对南校糯96产量的影响

Effect of panting density and fertilizer application yield of Nanxiaonuo No 96

摘要: 采用四元二次回归正交组合设计方法，分析密度、氮肥、磷肥、钾肥4种因子对南校糯96 产量的影响遥通过主因素、单因素效应分析，结果表明：对南校糯96 产量有显著影响的因子是密度；有显著影响的交互项为密度与氮肥、密度与钾肥。定量地评价了密度、氮肥、磷肥、钾肥4种因子与南校糯96 产量的关系，提出了目标产量的最优微肥组合方案。从高产角度考虑，南校糯96最优组合为每667m2种植3500~3750 株，施N 9.2~1.5 kg、P2O5 2.7~3.6 kg、K2O 6.75~7.425 kg。

Abstract: The orthogonal combination design of quadratic regression was adopted in this experiment. Effects of interaction among density, N,P,K coordinating on the yield of maize were studied by field experiment. Effect of density, N,P,K on the yield of maize were studied quantitatively based on main and single factors effect analysis. The results show that the factors which had a significant impact on yield of maize were density the interactions which had a significant impact on yield of maize were density and N, density and K. The range of density, N,P,K optimal composite scheme were 3 500-3 750 plants/667m2, 9.2~11.5 kg/667m2, 2.7~3.6 kg/667m2, 6.75~7.425 kg/667m2, respectively.