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聚合草又名紫草根,是紫草科聚合草属多年生草本植物,原产欧洲,我国1972年从朝鲜引入,我团于1977年从北京市房山县石楼公社引入试种。我们试种表明,聚合草是一种很适合我区栽培的高产优质饲料。 聚合草喜温暖湿润气候,且耐寒,能忍受-40℃的低温,在我区可以安全露地越冬。它在沙性土和粘重土上都能良好生长,其肉质根可伸入板结的黄胶泥土层中17厘米以上,土壤总盐量达0.4％时也能正常生长。
Polymerization grass, also known as comfrey root, is a comfrey genus of perennial herb, native to Europe, China introduced from North Korea in 1972, our mission in 1977 from Fangshan County, Beijing Shilou commune to try planting. Our test shows that the polymerization of grass is a very suitable for our cultivation of high yield and quality feed. Aggregation grass hi warm and humid climate, and cold, can tolerate the low temperature of -40 ℃, in our area can safely open wintering. It grows well on both sandy soil and sticky soil, and its fleshy root extends into the yellow cement layer of the knot more than 17 cm. When the soil total salt content reaches 0.4%, it can grow normally.