通过3年的测定结果表明,细茎冰草Agropyron trachycaulum cv Slender在青海东部农业区的高寒山区旱作条件下,可以安全越冬,越冬率为86%~90%,第2和3年的平均干草产量分别为3 856 6,5 386 7kg/hm2,籽实产量分别为897,1 150 kg/hm2,生育期133~140 d,属中、晚熟多年生优良禾本科牧草品种,适合在海拔为2 750 m左右的旱作条件下种植,具有良好的推广前景。 The results of three years showed that Agropyron trachycaulum cv Slender can safely wintering in winter in the alpine mountainous area of ​​eastern Qinghai, with the overwintering rate of 86% -90%. The mean hay of the second and third years The yield was respectively 3 856 6,5 386 7kg / hm2, the seed yield was 897,1 150 kg / hm2 respectively, and the growth period was 133-140 d. It was a middle-late-maturing perennial grass gramineous forage suitable for growing at an altitude of 2 750 m About under the cultivation of dry conditions, has a good promotion prospects.