试验结果表明 ,冬牧 - 70黑麦在南北气候过渡带的秦巴山区适应性良好 ,抗逆性强 ,在生长期内 ,可刈割 4～ 5次 ,产草量达 6 0 0 0 0 kg/ hm2 ,可作为提供冷季青绿饲草的优良草种大面积推广种植 The results showed that the winter-grazing-70 ryegrass had good adaptability and strong resistance in the Qinba Mountains in the north-south climate transitional zone, which could be cut 4 to 5 times during the growing period and the grass yield was 60,000 kg / hm2, which can be used as a good grass species to promote green forage grass in the large-scale popularization and cultivation