西瓜与棉花间套田块,棉花种植密度较低,适当选留叶枝有利于提高棉花产量。选留叶枝虽然对棉花正常生长有一定影响,但能显著增加二级果枝数及果节量,对提高单株成铃数及产量有促进作用。在中上等肥力、棉花种植工为２２００株／亩～２５００株／亩的田块,每株以选留１台～２台叶 Set of watermelon and cotton field plots, cotton planting density is low, proper retention of leaf branches is conducive to increasing cotton production. Although the selection of leaf branches although the cotton has a certain impact on the normal growth, but it can significantly increase the number of second-level fruit branches and fruit yield, to improve bolls per plant and promote the role of yield. In the best fertility, cotton planters for the 2200 / mu ~ 2500 / mu of plots, each plant to choose to stay 1 ~ 2 leaves