水肥一体化条件下不同肥料配比对玉米生长指标及产量的影响

Effect of Different Fertilizer Ratios on Maize Growth Index and Yield under the Condition of Water and Fertilizer Integration

为改变传统施肥观念,降低生产成本、平衡土体营养结构、提高玉米单产,探讨玉米在滴灌水肥一体化模式下氮、磷、钾、锌肥的最佳配比和施用量,采用L_(16)(4^(5))正交试验设计,研究不同处理对玉米农艺性状及产量的影响。结果表明,N、P_(2)O_(5)、K_(2)O、Zn的最佳施肥量分别为26 kg/667 m^(2)、15 kg/667 m^(2)、6 kg/667 m^(2)和1.0kg/667 m^(2)。

In order to change traditional fertilization concept,reduce production cost,balance trophic structure of soil and increase maize yield,this experiment used L_(16)(4^(5)) orthogonal experiment design to study the optimal ratio and application rate of nitrogen,phosphorus,potassium and zinc fertilizers for corn under the integrated drip irrigation mode of water and fertilizer,and study the effect different treatments on corn agronomic traits and yield.The results showed that the best amounts of N,P_(2)O_(5),K_(2)O,Zn for corn was 26 kg/667 m^(2),15 kg/667 m^(2),6 kg/667 m^(2) and 1.0 kg/667 m^(2),respectively.