作　　者： ; ; ; ; ; ; ;

机构地区： 湖北省农业科学院

出　　处： 《湖北农业科学》 2012年第24期5599-5602,共4页

摘　　要： 采用三因素五水平通用旋转组合试验设计方法,研究了种植密度、氮肥和缩节胺对棉花新品种KB02的产量及主要性状的影响,建立了相应的数学模型。结果表明,3个因素对子棉产量的作用为密度>氮肥>缩节胺,密度与氮肥、密度与缩节胺之间存在互作效应,在-1.682≤x≤1.682水平内,即密度为30 000株/hm2,纯N为337.5 kg/hm2,缩节胺为90.0 g/hm2时,可达最高产量,最高产量y=4 344.71 kg/hm2。 The effects of density,nitrogen fertilizer,and 1-dimethylpiperidyliumchloride(DPC) on the yield and main characters of hybrid cotton KB02 were studied using general rotational regression design method and a mathematic model involving the three factors and seed cotton yield was established.The results indicated that the affecting degree of the three factors on seed cotton yield was as follows: plant density>nitrogen fertilizer>DPC.There were interaction effects between density and nitrogen fertilizer,density and DPC.In the horizontal range of-1.682≤x≤1.682(i.e.plant density was 30 000 ind/hm2,nitrogen fertilizer was 337.5 kg/hm2,DPC was 90.0 g/hm2),the yield of KB02 could be up to the high yield of 4 344.71 kg/hm2.

关 键 词： 转基因抗虫杂交棉 高产高效栽培 密度 氮肥 缩节胺

领　　域： [农业科学]