南阳盆地夏棉优质高产规范化栽培模型研究

A Study on Cultivation Pattern of High Yield and High Quality of Short Cotton in Nanyang

根据旋转回归设计田间试验测得的数据，建立以皮棉产量和霜前花率为目标性状的四元二次回归方程，通过模拟寻优，决选出亩产皮棉７０Ｋｇ，霜前花率８５％以上农艺决策措施为：密度７．４～８．０４株／亩，群体总果技４．３５～４．５５万／亩，施纯氮１１．７５～１２．８５Ｋｇ／亩，喷缩节胺４．２～４．５ｇ／亩。

According to data from a field experiment designed with regression design,two regression eguation on lint yield and rate of good cotton are established. Through simulation by these equations,the decision-making praject producing 70Kg/mu of lint yield and 85% good cotton is that plant population is 7.4￣ 8. 4Kiloplants/mu, total fruiting branches 4350045500 No./mu, pure nitrogen 11.75￣12. 85Kg/mu,DPC2. 9￣ 3. 4g/mu.