焉耆盆地棉花在不同播期，其棉株的生长与产量差异很大，４ 月２６ 日播种的棉花较５ 月６ 日播种的棉花果枝数增加０９～１１ 台，增幅１３６％ ～１８％ ，达显著水平。单株载铃增０６～１５ 个，增幅１０９％ ～２６８％ ，达极显著水平，增产皮棉４７５２ ｋｇ／ｈｍ ２，差异达显著水平。 The growth and yield of cotton plants in Yanqi Basin differed greatly in different sowing dates. The cotton sown on April 26 outperformed the cotton ones planted on May 6 by 0.9-1.1 units, an increase of 13.6% % ~ 18%, reaching a significant level. The bolls per plant increased from 06 to 15, with an increase of 109% ~ 268%, reaching an extremely significant level, with an increase of 4752 kg / hm 2 in lint yield. The difference was significant.