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针对覆膜棉在生产中的中期徒长、后期易早衰及烂铃多等问题,我们设置在不同时期对覆膜棉进行揭膜,研究揭膜对棉花生长发育及产量的影响。结果表明:在6月上旬揭膜能使棉花生长中期株高和叶面积减小,单株铃数增多,叶片中可溶性蛋白和叶绿素的含量增加;可以调节营养生长和生殖生长的关系,对中期徒长可起到有效预防作用;对后期的产量有明显的促进作用。
In view of the medium-term legally growth of cotton-covered cotton in the production, the late premature premature aging and the unsmiling bolls, we set to strip the cotton-covered cotton at different periods to study the effects of the uncovering film on cotton growth and yield. The results showed that in the first half of June, the film shedding could reduce the plant height and leaf area in the middle stage of cotton growth, the number of bolls per plant increased, and the content of soluble protein and chlorophyll in leaves increased. The relationship between vegetative and reproductive growth could be adjusted, Legitimate can play an effective preventive role on the late yield significantly promote the role.