While soil water content under green coverings was obviously reduced, among 3 kinds of grass, White Clover ( Trifolium repens) reduced soil water content evidently and Alfalfa ( Medicago sativa) affected it weakly in root zone. 同时生草可降低葡萄园土壤水分含量,在葡萄根系生长的土层(0~60cm)范围内,行间种植白三叶草对土壤含水量影响较大,紫花苜蓿影响较小。
Seed germination of barnyard grass was significantly inhibited by the water extracts of hairy vetch and yellow sweet clover, and the inhibition rate exceeded 60%. 其中对毛苕子和黄花草木樨种子发芽的抑制作用强于其它3种,抑制率达60%以上;紫花苜蓿对稗草幼苗生长的抑制作用强,特别是对根的抑制作用显著强于其它4个草种;
In this paper, suitable buried depth and irrigation water quantity of underground drip irrigation in clover field are researched according to the soil moisture change of underground drip irrigation of clover field, through comparison with that of conventional furrow irrigation. 根据苜蓿地下滴灌土壤水分变化,并以常规沟灌为对照,对苜蓿田间地下滴灌的适宜埋深和灌水量进行了研究。