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本试验应用二次回归正交旋转设计试验方法研究了黑河54号大豆主要栽培因子(密度、氮肥、磷肥和钾肥)与大豆产量的关系,建立了数学模型。通过微机对横型的解析,得出各因子对产量效应的主次关系;两因子搭配的产量效应以及等产量线图。通过边际产量分析了经济效益,并且藉助微机模拟试验(频数分析),求出指定产量水平下的最佳农艺措施,为总结大豆栽培经验与指导生产提供了新的思路。
In this study, quadratic regression orthogonal rotation design test method was used to study the relationship between the main cultivation factors (density, nitrogen fertilizer, phosphate fertilizer and potash fertilizer) and soybean yield in Heihe 54 so as to establish a mathematical model. Through computer analysis of the horizontal type, we get the primary and secondary relationship of each factor to the yield effect; the output effect of two factors and the equal output line graph. Through the analysis of the marginal yield of economic benefits, and by means of computer simulation test (frequency analysis), to determine the optimal yield level of the best agronomic practices, to sum up soybean cultivation experience and guide the production of new ideas.