【摘要】 研究喷灌与地埋式滴灌对三得利紫花苜蓿的株高、茎粗、分枝数、茎叶比和产量等指标的影响,结果表明,地埋式滴灌对苜蓿的生长影响较喷灌大,滴管铺设间距50 cm的处理有利于植株高度、茎粗的生长,间距70 cm的处理有利于苜蓿分枝数的生长,埋深20 cm时苜蓿株高显著高于其他处理水平;与喷灌相比,地埋式滴灌可显著提高苜蓿的产草量,埋深20 cm,间距70 cm时苜蓿产草量最高为138 734.03 kg/hm2,该结果可为地埋式滴灌在苜蓿田建植上的应用与推广提供参考。更多还原

【Abstract】 The effects of sprinkler irrigation and ground drip irrigation on plant height, stem diameter, branch number, stem-leaf ratio and yield of Sandi alfalfa were studied. The results showed that the effect of ground drip irrigation on the growth of alfalfa was greater than that of sprinkler irrigation. The treatment of the distance of the drip tube laying 50 cm was conducive to the growth of plant height and stem diameter, and the distance of 70 cm was conducive to the growth of alfalfa branch number. The height of alfalfa plant was significantly higher than other treatment levels at a depth of 20 cm. Compared with sprinkler irrigation, ground drip irrigation could significantly increase the yield of alfalfa, with a depth of 20 cm and a distance of 70 cm.The maximum yield of alfalfa was 138734.03 kg/hm2. This result could be used as a reference for the application and promotion of ground drip irrigation in the establishment of alfalfa field.更多还原