摘要
行距配置是影响无膜棉产量的因素之一。本试验选取中棉619为材料,设置3种不同行距,研究不同行距配置对无膜棉冠层结构及产量的影响。结果表明:处理A[行距(76+76)cm、一幅3行]和处理B[行距(76+10+76)cm、一幅4行]叶面积指数均表现为冠层中部>冠层上部>冠层下部,处理C[行距(10+66+10+66+10)cm、一幅6行]叶面积指数表现为冠层下部>冠层中部>冠层上部,中部叶面积指数以处理B最高,下部叶面积指数以处理C最高;在不同行距配置下,无膜棉叶倾角整体表现为冠层下部>冠层中部>冠层上部,且随着平均行距的减小叶倾角增大;处理A和处理B的单铃重、单株铃数、单株籽棉重和单株皮棉重均高于处理C,但处理C单位面积产量最高(6748.3 kg/hm2)。综合而言,处理C的行距配置更适合在南疆无膜棉栽培中大面积推广。
Row spacing is one of the factors affecting the yield of film-free cotton.In this experiment,Zhongmian 619 was used as material,and three different row spacings were set to study the effects of different row spacing configurations on the canopy structure and yield of film-free cotton.The results showed that the leaf area index of treatment A[row spacing(76+76)cm,three rows of a piece]and treatment B[row spacing(76+10+76)cm,four rows of a piece]was all in the order of middle part of canopy>upper part of canopy>lower part of canopy,and the leaf area index of treatment C[row spacing(10+66+10+66+10)cm,six rows of a piece]was in the order of lower part of canopy>middle part of canopy>upper part of canopy,the middle leaf area index was the highest in treatment B,and the lower leaf area index was the highest in treatment C.Under different row spacing configurations,the leaf inclination of film-free cotton showed as follows:lower part of canopy>middle part of canopy>upper part of canopy,and the leaf inclination increased with the decrease of average row spacing.The single boll weight,boll number per plant,unginned cotton weight per plant and ginned cotton weight per plant of treatment A and treatment B were higher than those of treatment C,but the yield per unit area of treatment C was the highest(6748.3 kg/hm2).In general,the row spacing configuration of treatment C is more suitable for large-scale promotion in film-free cotton cultivation in southern Xinjiang.
作者
冯洁
周保平
叶凡恺
张
何云龙
FENG Jie;ZHOU Baoping;YE Fankai;ZHANG Yan;HE Yunlong(School of Information Engineering,Tarim University,Alar Xinjiang 843300)
出处
《现代农业科技》
2023年第8期19-22,25,共5页
Modern Agricultural Science and Technology
基金
国家自然科学基金“南疆盐渍化地区棉花水氮迁移机理及效应模拟研究”(61563046)。
关键词
无膜棉
行距
冠层
产量
南疆
film-free cotton
row spacing
canopy
yield
southern Xinjiang
