紫云英是我县最重要的一种高产冬季绿肥作物。解放初期,全县紫云英绿肥不过6万余亩,鲜草产量很低,一般亩产仅700--800斤。解放后,在党的正确领导下,大力发展了紫云英绿肥生产,面积逐年扩大,鲜草产量平均每亩提高到4500多斤,部分高产地区6000—8000斤,因而有力地促进了水稻产量大幅度增加。例如,1964年全县粮 Astragalus is the county’s most important high-yield winter green manure crops. In the early period of liberation, the county had more than 60,000 mu of green manure, but the yield of fresh grass was very low. Only 700-800 kg of mu per mu was generally produced. After the liberation, under the correct leadership of the party, the production of green manure from Ziyunying was vigorously developed. The area has been expanding year by year. The average output of fresh grass increased to over 4,500 kilograms per mu and from 6,000 to 8,000 kilograms in some high-yielding areas, thus effectively boosting the output of rice increased badly. For example, the county’s food in 1964