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为了探讨甘蔗氮磷钾的最佳经济施肥量及肥料之间的相互作甩,以便更好地指导甘蔗生产。应用二次回归饱和 D-最优设计的试验研究方法,设置小区试验,进行甘蔗氮磷钾肥料效应研究,现总结如下:1 材料和方法(1)供试土壤:恭城加会乡大山村水稻土(属冲积土),前作为水稻,土壤肥力
In order to explore the optimum amount of NPK fertilizers and the interaction between fertilizers in order to better guide the sugar cane production. Application of quadratic regression saturation D-optimal design of experimental research methods, set cell test, sugar cane nitrogen, phosphorus and potassium fertilizer effect, are summarized as follows: 1 Materials and methods (1) for the test soil: Gongcheng Jia Huixiang Dashancun Paddy soil (alluvial soil), before as rice, soil fertility