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本文在1987年试验基础上,1988年继续应用二次正交旋转组合设计的方法,对密度、氮素、单株果枝数及缩节安化控四项农艺措施进行综合研究,根据研究结果建立了产量、成铃分布、亩果节回归模型。通过数学模型筛选出亩产子棉225kg以上的优化农艺措施组合方案,给出了该优化组合最佳的成铃模式和分布特点。此外,还给出了该优化组合的亩果节数、蕾铃脱落率的动态变化曲线,为该优化方案实施时提供诊断指标和参数。
Based on the 1987 experiment, the quadratic orthogonal rotation combined design method was continuously applied in 1988 to conduct a comprehensive study on the four agronomic measures of density, nitrogen, the number of fruit trees per plant and the regulation of chemical safety. According to the results of the research, The yield, the distribution of bells and the fruiting section regression model. Through the mathematic model, a combination plan of more than 225kg per acre cotton was screened, and the optimal boll forming pattern and distribution characteristics of the optimized combination were given. In addition, the dynamic curve of the number of fruit and fruit per unit area and the rate of buds detachment of the optimized combination is also provided, which provides diagnostic indicators and parameters for the optimization scheme.