冬牧-70黑麦冬牧-70黑麦原产地美国,其干草产量高于其它黑麦17～21%,适宜冬季种植。1979年引入我国,现已推广到东北、西北等省区。一、植物学、生物学特征。70黑麦属一年生草本植物,株高150～180厘米,每株有6片叶,分蘖15～30个,穗长14～15厘米,生育期243天;4月上旬抽穗,6月上旬收获种子,千粒重26～27克;耐寒性特别强,播种后平均气温为4.4℃能生根出苗;抗病能力强,未发现病害。二、种植方法。该品种3、4、9、 Winter grazing -70 rye winter grazing -70 rye origin of the United States, its hay yield 17 ~ 21% higher than other rye, suitable for winter planting. Introduced to China in 1979, has now been extended to the northeast, northwest and other provinces. First, botany, biological characteristics. 70 rye is an annual herb with a plant height of 150-180 cm, 6 leaves per plant, 15-30 tillers, 14-15 cm spike length and 243 days of growth period; ear harvest in early April and seed harvest in early June , Grain weight of 26 to 27 grams; particularly strong cold resistance, the average temperature after sowing 4.4 ℃ can take root; strong disease resistance, no disease found. Second, planting methods. The variety 3,4,9,