摘要
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.
出处
《河南职业技术师范学院学报》
1994年第3期19-23,共5页
Journal of Henan Vocation-Technical Teachers College
关键词
夏棉
棉花
栽培
栽培模型
田间试验
short cotton, cultivation pattern, agronomic decision