论文部分内容阅读
采用三元二次回归正交旋转组合设计方法,研究了喷施玉米健壮素后玉米产量与种植密度、普钙用量、尿素用量的关系,建立了三因素与产量关系的数学模型,根据模型拟出喷施玉米健壮素条件下玉米种植密度与施肥水平的最佳方案。
The quadratic regression regression orthogonal rotation combination design method was used to study the relationship between maize yield and planting density, the amount of calcium supplementation and the amount of urea after maize hormone was sprayed. The mathematical model of the relationship between the three factors and yield was established. According to the model The best program of corn planting density and fertilization under the conditions of spraying corn healthy hormone.