聚合草原是一种野生植物,十九世纪从苏联输入英国,经改良后为多年生饲料作物,以后传入日本、朝鲜、澳大利亚等国.我国一九六四年起从日本、朝鲜、澳大利亚引种,经几年试种繁殖,扩大到全国各地.试种单位都认为聚合草是一种高产优质、繁殖快、适口性好、消化吸收率高、适应性强、利用期长的青饲料.聚合草年亩产青草2～3万斤,营养丰富,含蛋白质比其它青饲料都高.在干物质中,含粗蛋白22～30%,粗脂肪5～6%,粗纤维 Aggregated grassland is a kind of wild plant, which was imported into the UK from the Soviet Union in the 19th century and after being improved, is a perennial forage crop and later introduced into Japan, North Korea and Australia etc. China introduced from Japan, North Korea and Australia from 1964, After a few years of trial breeding, extended to all parts of the country .Performance units are that polymerization of grass is a high yield and quality, fast propagation, palatability, high digestion and absorption rate, adaptability, long period of green feed. It is rich in nutrients and contains more protein than other green fodder, and contains 22-30% of crude protein, 5-6% of crude fat, crude fiber