景谷蔗区春植甘蔗高产优化模式栽培技术研究

Study on Optimized Cultivation Model of High Productivity of Spring-Planting Sugarcane in Jinggu

在抗旱技术下，对甘蔗下种量、行距、施肥量采用二次通用旋转组合设计进行试验，建立产量函数模型，试验表明各因素对产量有显著作用，影响顺序是氮＞下种量＞钾＞磷＞行距，下种量和种植行距，施氮水平和下种量，施氮与施磷，施磷与施钾等交互作用均达到了显著或极显著水平。应用产量回归数学模型，结合蔗区自然条件和耕作水平，制定约束水平，通过模拟运筹，制定出旱坡地蔗区的高产优化模式技术方案。

Based on drought resistant cultivation techniques, this experiment adoptquadratic all-purpose rotating design on sowing-density row-space space,fertilization quantity, and decided the relationship by the process of establishingproduct function model. The results showed that each factor has an apparent effect onthe product, the degree of effect is N>sowing-density> K> P> rowing space: theintereffect of seeding quantity and lines space, seeding quantity and N, N and P, P andK were measured, which is significaht or most significant. Using product regressiontnathematical model, according to the nature factors and the plantation 1evel of thisarea, the limited level is made for analysis, then, by means of simulation calculation,the optimized ways of high productivity are advised for dryland and slope dryland.