聚合草在我省已有八年的栽培历史,目前已普及省内各地。生长期表现茎、叶繁茂,一年可收鲜草2—3次,亩产最高达13,000斤。干茎、叶的粗蛋白质含量在20%以上。经试验证实,一斤鲜茎、叶喂猪可顶0.1斤玉米。是一种产量高、品质好的优良饲草。但在我省栽种的聚合草,很多地区越冬期间存在着根部霉烂死亡,下一年返青植株甚少,不能连年利用,失去了多年生饲草的利用价值。为了解决这一问题,从1975—1980年进行了聚合草越冬死亡 Aggregate grass in our province has eight years of cultivation history, has now spread throughout the province. Stem growth in the performance of stems, lush leaves, fresh grass 2-3 times a year, up to 13,000 kg per mu. Dry stems, leaves the crude protein content of more than 20%. The test confirmed that a pound of fresh stems, leaves, pigs can be the top 0.1 pounds of corn. Is a high yield, good quality forage. However, the polymerized grass planted in our province has many rotten roots and rotten roots in winter and many plant rejuvenation plants in the next year are very few and can not be used year after year, losing the value of perennial forage utilization. In order to solve this problem, the overwintering death of polymerized grass was carried out from 1975 to 1980