摘要
本文从分析棉田水分动态入手,结合棉花生育期内降水和棉花的需水规律,对棉田水分管理进行了研究。通过对不同生育时期内棉花消耗水分的量及不同群体密度水平下的土壤水含量动态,覆盖行间与不覆盖行间水分变化的比较,多年平均降水量与棉花需水量的比较分析,提出了晋中棉区棉田水分管理的策略和具体措施。
Through analyzing water dynamies of cotton filed,combining rainfall during whole growth period and regular demand of cotton plants for water,the water management of cotton field was studied.Based on the calculation of water consumption in various growth periods.changes of soil moisture content in different population density of cotton,comparison two situations of cotton field between Under film cover and in naked land average rainfall for several years,the policy of water management and practical measures were suggested in the paper.
关键词
棉花
密度
水分
耗水量
Cotton
Population density of cotton
water management
