CAJ | 학술논문

通过对直播短季棉不同密度和不同棉太金施用量进行组合，以达到简化栽培并构建适于机械采收的早熟棉群体的目的。试验结果表明，喷施棉太金和增密处理对棉花生长具有较好的调控作用，其中：（1）单位面积相同棉太金施用量下，密度增大，单株叶面积、果枝数、总果节数、成铃数减少，株高、干重、果枝长度、始节位、始节高度下降，小区产量提高；（2）相同密度下，单位面积棉太金施用量增大，单株叶面积、果枝数、总果节数、成铃数减少，株高、干重、果枝长度、始节位、始节高度、小区产量下降。试验中单铃重和衣分未受明显影响。
통과대직파단계면불동밀도화불동면태금시용량진행조합，이체도간화재배병구건괄우궤계채수적조숙면군체적목적。시험결과표명，분시면태금화증밀처리대면화생장구유교호적조공작용，기중：（1）단위면적상동면태금시용량하，밀도증대，단주협면적、과지수、총과절수、성령수감소，주고、간중、과지장도、시절위、시절고도하강，소구산량제고；（2）상동밀도하，단위면적면태금시용량증대，단주협면적、과지수、총과절수、성령수감소，주고、간중、과지장도、시절위、시절고도、소구산량하강。시험중단령중화의분미수명현영향。
To realize simplified cultivation and establish the early maturing cotton group for mechanical harvesting,an ex-periment on different combinations of planting density and spraying amount of“Miantaijin”for direct seeding short-sea-son cotton was conducted. The results showed that spraying“Miantaijin”and increasing density had good regulation effect on cotton growth. Under condition of same amount of “Miantaijin”,with the increment of density,leaf area,number of fruiting branches,total number of fruit nodes and number of bolls per plant were decreased,plant height,dry weight,length of fruit branch,first fruiting branch bode and height of the first fruiting branch node were declined,while the cotton yield was increased. Under condition of same density,with the increment of amount of“Miantaijin”,leaf area,number of fruiting branches,total number of fruit nodes and number of bolls per plant were decreased,plant height,dry weight,length of fruit branch,first fruiting branch bode,height of the first fruiting branch node and cotton yield were declined. In this experi-ment,the boll seed cotton weight and lint percentage were not affected.