不同施肥量对甘蔗产量的效应研究

Effects of Fertilizer Rates on the Yield of Sugarcane

采用3因素5水平二次正交旋转回归试验方法,研究甘蔗产量与氮、磷、钾施用量的关系,获得施肥量与产量二次回归数学模型。通过分析表明:施用氮、磷、钾肥均对云蔗06-407产量的影响较为显著,且氮、磷、钾肥在较低施用水平比较高施用水平对于甘蔗产量具有更明显的增产作用,各因子对甘蔗产量的影响顺序是:磷肥>氮肥>钾肥。

Regression method of quadratic orthogonal gyration combination with 3 factors and 5 levels was used to simulate the level of fertilizers （N, P, K） applied to sugarcane yield. The mathematical model on the relationship between application level of fertilizers and the yield was set up. Results indicated that application of N, P and K significantly influenced yield of sugarcane variety ＂YunZhe 06-407＂, and the lower level of N, P and K fertilizer amount relatively increased yield of sugarcane than the high levels of fertilizer amount, the order of effect on cane yield was P 〉 N 〉 K.