一、前言为建立稳产高产饲草基地,解决牲畜冷季补饲问题,一九七四——一九八○年,我们在海晏县甘子河公社的冬春草场上,开展了建立人工草场的中间试验研究工作。七年来先后共建以打草为主的人工草场17,226亩。根据多年的观察、测定所得结果:在正常年景下,不加灌溉措施,人工草场亩产鲜草平均达1,300斤以上(折合干草500斤),产籽40 I. Introduction In order to establish a steady and high yield forage base and solve the problem of feeding livestock during the cold season, we established artificial grassland in the winter and spring pastures of Ganzihe Commune in Haiyan County from 1974 to 1980. Of the pilot study. In the past seven years, it has built 17,226 mu of artificial grassland dominated by grass. According to years of observation, the results obtained are as follows: In the normal years, without artificial irrigation, the average yield per mu of fresh grass in the artificial grassland reached 1,300 kg (equivalent to 500 kg of hay), and the yield of seeds 40