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采用五元二次旋转回归设计田间试验，通过建立各类数学模型的统计分析得出，力争公顷铃数、兼顾铃重，是获得高产的主攻方向。摸清了各产量因素间相互制约、此长彼消的变化规律与不同皮棉产量的产量结构指标。明确狠抓中下部果枝１～２果节内围优质铃、运用适期早栽、合理密植、肥促化控等综合农艺措施，是实现优质高产最佳产量结构的症结
Using five quadratic rotation regression design field experiment, through the establishment of various mathematical models of statistical analysis, and strive to hectare bolls, taking into account the boll weight, is to obtain the main direction of high yield. Find out the mutual restraint between the factors of production, the changing pattern of the long and the negative and the output structure index of different lint yield. Clearly pay close attention to the middle and lower fruiting branches 1 to 2 fruit ring around the bell, the use of appropriate early planting, rational close planting, fertilization and other comprehensive agronomic control measures, is to achieve high yield and yield the crux of the structure