应用调节安调控棉花株型数学模型研究  

STUDIES ON MATHEMATICAL MODEL OF REGULATING COTTON PLANT SHAPE WITH DMC

作　　者：邓建修[1] 黄永芬[1] 

机构地区：[1]四川省农科院棉花研究所

出　　处：《西南农业学报》1995年第4期48-52,共5页Southwest China Journal of Agricultural Sciences

摘　　要：１９９１～１９９２年，采用三因素Ｂ－饱和最优回归设计，研究了麦套棉田应用调节安调控棉花株型的数学模型，筛选出每公顷皮棉产量大于１６５０公斤的调节安用量组合方案为：蕾期喷施１２．３～２２．０５ｇ／ｈｍ２，见花期喷施２２．６５～３８．２５ｇ／ｈｍ２，花铃期喷施３３．７５～５６．２５ｇ／ｈｍ２。对应的株型模式为：株高９１．６～１０３．２ｃｍ，下、中和上部果枝长度分别是３６．０～４１．３、３１．１－３７．０和２５．０～２９．２ｃｍ。The mathematical models of regulating cotton Plant shape with DMC were studied with B-saturated and optimum regression design for three factors in the intercropping field of cotton and wheat in 1991-1992.The optimal DMC amount appli<ation was selected by the models for lint yield>1650kg/hm2. The corresponding plant shape for lint yield>1650kg/hm2 were:plant height: 91. 6-103. 2cm; lower,middle and upper fruit branch length 36. 0-41. 3cm, 31. 1-37. 0cm and 25. 0-29. 2cm,respectively.

关 键 词：数学模型 株型 调节安 调控 棉花 

分 类 号：S562.062[农业科学—作物学]