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意大利黑麦草为一年生优良的禾本科牧草,因在13世纪意大利北部最早种植而得名。我站1974年从南京植物园引进试种。1979年大面积推广种植。经多年试验、示范推广,证明它是一种抗逆性强(耐寒、耐酸、耐瘠、抗病虫),适应性广,生活力、分蘖力强(单株分蘖200～400个),再生性能好(年可刈割3～5次),单位面积青草产量可达0.4～0.5万公斤,且营养丰富。其茎叶光滑,柔嫩多汁,适口牲极好,消化率高。据我站测定,干物质内粗蛋白质、脂肪、无氮浸出物等营养物质含量可与稻谷媲美。它是我省牛、羊、猪、鸡、鹅、兔、鱼的当家草种,并已推广到广东、湖北、湖南、安徽、福建、浙江、江苏等15个省。
Italian ryegrass is an annual grazing pasture, named for its earliest planting in northern Italy in the 13th century. I station in 1974 from Nanjing Botanical Garden introduction of test. In 1979 a large area to promote planting. After many years of experiments and demonstrations, it is proved that it is a strong anti-stress (cold, acid, barren, pest control), wide adaptability, viability, strong tillering ability (200 to 400 tillers per plant) Good performance (annual mowing 3 to 5 times), grass yield per unit area of up to 0.4 to 5 million kg, and nutritious. Its smooth stems and leaves, juicy tender, palatability is excellent, high digestibility. According to my station determination, dry matter within the crude protein, fat, nitrogen-free extract and other nutrients comparable with rice. It is the province of cattle, sheep, pigs, chickens, geese, rabbits, fishes headed grass, and has been extended to Guangdong, Hubei, Hunan, Anhui, Fujian, Zhejiang, Jiangsu and other 15 provinces.