摘要
本文采用旋转设计所作的三因素试验测得的参数,建立了子棉产量、皮棉产量、霜前花、纯收益等函数模型.通过计算机模拟,筛选出兼顾高产、优质、高效益的综合农艺措施为;每亩3.2—3.9千株,施纯氮11.3—12.6公斤,14.5—15.5个果枝打顶,并对试验因子的主效应及交互效应进行了剖析.
In this test the gyration method was adopted to obtain the parameters in the experi -ment of three factors, and functional models of unginned and ginned cotton yield, income and prior to frost cotton have been estabished by the obtained parameters. Through the simulation and sieving by computer, comprehensive technic measures have been developed to reach a high yield, top quality and high benefit cotton, which include rational close planting of 3200-3900 plants per mu, 11.3-12.6 kilogram pure nitrogen per mu and top removal from the fruiting branch bearing 14. 5-15. 5 fruits. The main and mutual effects of the tested factors have also been analysed.
出处
《华北农学报》
1988年第1期13-20,共8页
Acta Agriculturae Boreali-Sinica
基金
国家自然科学基金资助课题
河南省"七五"棉花协作攻关课题
关键词
棉花
高产优质
二次旋转
回归设计
Cotton
High yield and fine quality
Quadratic regression design
