棉花高产栽培的数学模型

通过对棉种SGK791在2003～2004年河南省棉花区试与2005年河南省棉花生产试验所得数据进行统计分析,建立了皮棉产量的数学模型和最优数学模型,给出了每公顷皮棉产量的95%预测区间为(1449.4,1519)。结果表明,4个产量因素中,以每株铃数对产量的作用最大,其次是密度,衣分居第三位,铃重的作用最小;高产途径为合理密植、力争株铃、兼顾衣分、稳定铃重。

Mathematical Model for Cotton High Yield Cultivation

By multiple-liner regression analysis,based on the data of the cotton experiments performed in Henan Province regional experiment in 2003 and 2004 and the production experiment in 2005 of the cotton seed SGK791,cotton yield mathematical model and the optimum mathematical model were established.It was shown that 95% cotton yield per hectare was(1 449.4,1 519).The analysis result indicated that among the four yield factors,the boll number per plant played the most important role in the cotton yield,following with density.Lint percentage took the third place,boll weight played the least role.High production path was rational close planting,more boll numbers per plant and lint percentage and stabilizing boll weight.