摘要
利用夏玉米地膜覆盖和露地环境因子和生理指标试验结果对比,得出地膜覆盖改变了土壤水循环系统,增加了浅层土壤温度,促进土壤水分运移,抑制棵间蒸发,使得表层土壤在长期无降水的情况下能保持较高的含水量;覆膜区夏玉米单株叶面积生理指标较露地情况明显增加。
Research is done on environmental factors of the summer corn and physiological indicators under the conditions of film mulch and open field through comparative experiments. Mulching can change in the soil water cycle, and increase shallow soil temperature, and promote soil moisture migration, and inhibit evaporation from plants, and can surface soil in the absence of long-term precipitation circumsta aces and maintain a relatively high water content. Mulching has improved the growth environment of the summer corn; there is a marked increase in the summer corn leaf area per plant in the whole growth period.
出处
《中国农村水利水电》
北大核心
2009年第1期43-45,共3页
China Rural Water and Hydropower
基金
"十五"节水农业重大专项(2002AA2Z4041)
关键词
地膜覆盖
夏玉米
叶面积
环境因子
生理指标
film mulch
summer maize
leaf area
soil temperature
soil moisture
