石河子垦区早熟棉两种株行距配置对产量及脱叶效果的影响  

The Effect of Two Arrangements of Plant-row Spacing of Early Maturity Cotton on Cotton Yield and Defoliation in Shehezi Reclamation Area

作　　者：郭景红 赵海 李玉国 姚炎帝 Guo Jinghong;Zhao Hai;Li Yuguo;Yao Yandi(Academy of Agricultural Sciences of Shehezi in Xinjiang.,Shihezi,Xinjiang 832000,China)

机构地区：[1]新疆石河子农业科学研究院,新疆石河子832000

出　　处：《棉花科学》2021年第4期41-45,共5页Cotton Sciences

基　　金：新疆生产建设兵团科技攻关项目(2016AC027);新疆生产建设兵团中青年领军人才项目(2018CB031);石河子市科技计划项目(2018NY04、2016HZ08)。

摘　　要：研究石河子垦区早熟棉两种株行距配置喷施脱叶剂后棉花产量及脱叶效果的差异性,为新陆早70号的推广应用提供依据和参考。以早熟棉新陆早70号为试验材料,设置一膜三行单行缩株(行距76cm,株距5.7 cm)与一膜六行宽窄行距(行距66 cm和10 cm,株距10.0 cm)两种株行距配置模式,通过田间小区试验,研究其产量表现及脱叶效果。结果表明:喷施脱叶剂后,单行缩株距模式较宽窄行距模式的单株果枝数、单铃重、单位面积总铃数均增加,衣分率提高0.3个百分点,籽棉产量和皮棉产量显著增加;在脱叶效果上吐絮率和脱叶率提高、悬叶率和枯叶率降低。新陆早70号在石河子垦区采用单行缩距模式有利于提高脱叶效果和产量,适宜在生产中推广。In order to study the difference of cotton yield and defoliation effect of two kinds of early-maturing cotton in Shihezi reclamation area after spraying defoliant,to provide basis and reference for the popularization and application of Xinluzao 70.Early-maturing cotton Xinluzao 70 was used as the experimental material,two patterns of one film three-row and single row shrinking(row spacing 76 cm,plant spacing 5.7 cm)and one film six-row wide and narrow line spacing(row spacing 66 cm and 10 cm,plant spacing 10.0 cm)were set up.The yield performance and defoliation effect were studied by field plot experiment.The results showed that after spraying defoliant,the number of fruit branches per plant,single boll weight,total bolls per unit area in the single row shrinking pattern were increasing than the wide and narrow row spacing pattern,and lint percentage increased by 0.3%,the yield of seed cotton and lint cotton increased significantly,in terms of defoliation effect,the rate of bouncing and defoliation increased,and the rate of hanging leaves and the rate of dead leaves decreased.Xinluzao 70 adpots the single row shrinkage model of planting in Shehezi reclamation area,which is beneficial to improve defoliation effect and yield,and is suitable for promotion in production.

关 键 词：石河子垦区 早熟棉 株行距配置 产量 脱叶效果 

分 类 号：S562.04[农业科学—作物学]