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通过对生物菌肥发展历程的回顾，指出了农田使用化肥存在的问题，并重点介绍了高效复合生物菌肥——肥力高的特点、增产效果及使用技术。
Through the review of the history of biological fertilizer, the problems of using chemical fertilizers in farmland are pointed out. The characteristics of high fertility, high yield and using technology are emphasized.