近年我区迅速扩种冬季豆科绿肥,以柴云英和苕子为多。生产实践证明,用根瘤菌剂拌种,紫云英、苕子有显著的增产效果.特别在新区,接菌和能否成瘤,更是种植紫云英的成败关键.但有不少地区,由于经验不足,往往未能接种成功。因此,如何有效 In recent years, my area rapidly expanded winter legume green manure, Chai Yunying and prickly heat as much. Production practice proved that the rhizobium seed dressing, Astragalus sinicus, prickly heat have a significant increase in yield .Especially in the new area, the bacteria and can become a tumor, but also the key to the success or failure of planting astragalus.However, there are many areas , Due to lack of experience, often failed to vaccinate successfully. So how effective?