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为选择适合在高海拔，寒冷地区推广的多年生混播牧草品种，采用近年培育出的甘农Ｉ号杂花苜蓿与碱茅，在肃南县进行了混播试验。结果表明，高寒地区碱茅与甘农１号杂花苜蓿混播有较强的抗寒性和越冬能力，碱茅与苜蓿以７：３比例混播，可获得最佳产草量和牧草品质。
In order to select perennial mixed-forage varieties suitable for popularization in high altitude and cold regions, the mixed-sowing experiment was conducted in Sunan County using Gannon-I russet alfalfa cultivated in recent years. The results showed that the cold tolerance and overwintering ability of Alkali Mao and Gannong No. 1 mixed alfalfa in alpine region were better than those of alfalfa in mixed alfalfa.