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1981～1983年试验示范结果,地膜棉花一般比露地直播棉增产,在沿海棉区尤为显著.地膜棉花产量的增加,除了单株结铃数增多外,铃重增加是一个重要因素.为了阐明地膜棉铃重增加的原因,实行合理栽培管理,特进行本项研究.方法和经过试验在南京本所进行.设地膜覆盖及露地直播(对照)两个处理.1982年供试品种为抗病棉86-1,4月21日播种;1983年用本所培育的抗病棉9101,5月1日播种.
From 1981 to 1983, the experimental results showed that the mulching cotton generally increased than the mulching cotton in the open field, especially in the coastal cotton area. The increase of mulching cotton yield was an important factor in addition to the increase of boll number per plant. Cotton boll weight increase reasons, the implementation of reasonable cultivation and management, special conduct of this study.MethodsAnd tested inNanjing.Before and after the establishment of direct seeding (control) two sets of treatments.The test varieties in 1982 for the disease-resistant cotton 86 - April 1, April 21 sowing; in 1983 with the breeding of disease-resistant cotton 9101, May 1 planting.