The application of organic fertilizer is necessary in supplying the resource of potassium of soils and alleviating the disequilibrium of N,P,K and increasing the use efficiency of organic nitrogen.

 
  • 證明有機肥是土壤鉀的重要來(lái)源,施用有機肥對于緩解氮磷鉀比例失衡有重要作用;
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