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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。
Under the drought-resistant technology, the second general rotation combination design was used to test the seed yield, row spacing and fertilizer rate of sugarcane, and the yield function model was established. The results showed that all the factors had a significant effect on the yield, with the order of nitrogen> lower seed> potassium > P> row spacing, seed spacing and planting spacing, N application rate and N rate, N and P application, P application and K application all reached significant or extremely significant levels. Applying the mathematic model of yield regression, combining the natural conditions of sugarcane field and the level of farming, the level of restraint was established. Through simulation, the technical scheme of high yield and optimization mode of sugarcane field in dry land was established.