论文部分内容阅读
采用复合技术,改善棉田小气候夏、秋季高温多雨,应在雨前或下雨时清理好棉田内的沟、畦,保证雨住田干。对于地下水位高的棉田,四周要开深80~100厘米、宽60~80厘米的围沟和纵、横沟,做到沟沟相通。要根据棉株生长情况,随时摘除老叶、黄叶、无效枝、无铃枝、无效花、无效蕾。对于封行过早、过重的棉株(田),应选晴天用手在行间扒开
The use of composite technology to improve the microclimate cotton field in summer and autumn, hot and rainy, should be cleared before the rain or raining in the cotton ditch, 畦, to ensure rain and dry fields. For cotton fields with high groundwater level, open the ditches and vertical and horizontal furrows that are 80 to 100 cm deep and 60 to 80 cm wide so that the ditches and gullys can communicate with each other. According to the growth of cotton plants, removed at any time old leaves, yellow leaves, invalid branches, no bell branches, ineffective flowers, ineffective buds. For the premature seal, overweight cotton (field), should be chosen by hand in the sunny day with the claw