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对中国产羊草和引自美国的牧冰草共７份材料／品种在内蒙古半干旱地区旱作条件下进行了牧草产量试验。试验结果指出，在建植２～６年期间，所有供试材料的牧草产量年际变幅都比较大，但羊草的变异系数相对低于牧冰草。牧草产量的年际变化受４～７月降水量和牧草生长年限的双重影响，但建植４～５年以后则主要受生长年限的影响。就牧草产量平均值和稳产性而言，羊草ＬＥＣＨ－ＩＭＣ最好，牧冰草Ｗａｌｓｈ最差；牧冰草Ａｒｉｂａ、Ｂａｒｔｏｎ、Ｒｏｄａｎ和Ｒｏｓａｎａ对内蒙古半干旱地区的草地补播有利用潜力。
A total of 7 materials / varieties of Chinese-made chrysanthemum and Italian-bound grasses were conducted in a semi-arid area of Inner Mongolia under dry cultivation conditions. The results showed that during the 2 to 6 years of establishment, the interannual amplitude of pasture production of all the tested materials was relatively large, but the coefficient of variation of Leymus chinensis was relatively lower than that of the pasture grass. The interannual variation of pasture production was affected by the precipitation in April to July and the growth period of pasture, but it was mainly affected by the growth period after 4 to 5 years of planting. The LECH-IMC of Leymus chinensis was the best and the Walsh was the worst in terms of forage yield and stability. Ariba, Barton, Rodan and Rosana had the potential of using meadows in the semi-arid area of Inner Mongolia.