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农业生产上养地与用地结合是个十分重要的问题。现在看来,扩大和恢复常规绿肥面积,难度很大,而积极发展经济绿肥如早熟蚕豆,直接提高绿肥作物本身的经济效益,却是一条切实可行的路子。
The combination of raising land and using land in agricultural production is a very important issue. Now it seems that it is very difficult to expand and resume the conventional green manure area. However, it is a feasible way to actively develop green manure such as precocious broad beans and directly increase the economic benefits of green manure crops.