衡阳地区是绿肥紫云英的栽培新区.现有栽培面积大药24万亩,占稻田总面积的百分之六左右.近几年来,通过一些重点的示范栽培和科学试验,充分地显示了紫云英对于改良土壤、提高水稻产量的巨大作用.因此,综合本地区农民的栽培经验与科学试验资料,进行分析讨论,以供在本区推广紫云英和进一步试验研究的参考是十分必要的. Hengyang area is the new cultivation area of ​​green fat Astragalus.The existing cultivation area of ​​240,000 acres of large drugs, accounting for about 6% of the total area of ​​paddy.In recent years, through some of the key demonstration cultivation and scientific experiments, fully demonstrated Therefore, it is necessary to analyze and discuss the cultivation experience and scientific experiment data of peasants in our region for reference of poplar and further experimental research in this area .