摘要
在准噶尔盆地北部平原荒漠灌溉区经５年试验，总结出在土壤含有一定盐分的高水位区地下水位与紫花苜蓿根深关系的回归方程为Ｙ＝１．０４６Ｘ－０．３５５，从而确定了控制地下水位的灌溉方法，即当水位降至１ｍ左右时为适宜灌溉期，灌溉至水位上升到地表下３０ｃｍ左右即可，能避免紫花苜蓿死亡，使建立苜蓿人工草地获得成功。
he results of a s fearsfield trial A regression equation between underground water table and the depth of alfalfa roots Y=1.046X 0.355was established based ou the re-sults of a five years field trial at the Northern part of Zungeer Lowland.proper times and methods of irrigation for alfalfas in the local conditions were also proposed in the pa-per
出处
《中国草地》
CSCD
1995年第3期48-49,共2页
Grassland of China
关键词
紫花苜蓿
根深
地下水位
灌溉
alfalfa, depth of roots,underground water table,irrigation
