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30多份以冰草属牧草为主的禾本科牧草引种试验结果表明,在年降水量230mm旱作栽掊条件下,有16种牧草生长良好,尤其是这些牧草返青早、枯黄晚,适应性较强,产量也较高。冰草属牧草年均干草产量在3867.0kg/ha～9395.3kg/ha之间,新麦草属牧草年均干草产量在4710.8kg/ha～7000.5kg/ha。其中产草量最高的是细茎冰草,年均干草产量为9395.3kg/ha,其次是俄罗斯新麦草,年均干草产量为7000.5kg/ha,再次是沙芦草(内蒙古),年均干草产量为6740.0kg/ha。适于早春放牧利用的优良牧草有篦穗冰草,航道冰草、沙芦草(区草原所)和野生新麦草;适于春秋两季放牧利用的优良牧草有细茎冰草、沙芦草(内蒙古)、野生新麦草和俄罗斯新麦草,它们对改良干旱、丰干旱地区退化草场及撩荒地有重要价值。
More than 30 grass species of grasses mainly introduced the gramineous pasture test results show that in the annual precipitation of 230mm under dry planting conditions, there are 16 species of forage grow well, especially the forage rejuvenation early, yellow evening, adaptability Strong, high yield. The average annual hay production of Agropyron herbage was between 3867.0kg / ha and 9395.3kg / ha, and the annual average hay production of the herbage was between 4710.8kg / ha and 7000.5kg / ha. Among them, the highest yield of grass was stem grass, the average annual hay yield was 9395.3kg / ha, followed by Russian new wheatgrass, the average annual hay yield was 7000.5kg / ha, and again the sand reed (Inner Mongolia) The yield was 6740.0 kg / ha. Good forage grasses suitable for early grazing and utilization include grifola frondosa, seaweed, savannah (wild grassland) and wild wheatgrass; fine grasses suitable for grazing in spring and autumn are finegrass, (Inner Mongolia), wild wheatgrass and Russian new wheatgrass, which are of great value to the improvement of degraded pastures and upland in dry and drought-arid regions.