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采用现代回归设计按不同地力类型,进行多点田间试验,利用微机对试验结果用逆序数聚类、联合结构矩阵法,建立了四组优化数学模型,选优决策经济优化施肥方案,进行示范,测定校验值(1±0.1),反馈生产信息,再大面积推广应用.其技术原理,技术路线与相应的软件包,适用于各土类及各种作物,技术指标(优化施肥方案)应用范围主要为冀东冬小麦.农民群众可根据土壤肥力等级和计划产量,在优化经济施肥方案中即可查得经济最佳施肥量,使施肥做到定量化、效益化.
In the modern regression design, according to different types of ground fertility, more field experiments were carried out. Four sets of optimization mathematical models were established by using the numerical results of the test results by the computer with reverse ordinal clustering and joint matrix method. The optimized fertilization program was selected and optimized for demonstration, Determination of the calibration value (1 ± 0.1), feedback production information, and then promote the application of a large area. Its technical principles, technical routes and the corresponding software package for all soil and various crops, technical indicators (application of fertilization program) The range is mainly winter wheat in eastern Hebei Province, where peasants can find out the best economic fertilization according to soil fertility level and planned yield, so as to quantify and benefit fertilization.