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为了解决生产磷肥用酸问题,近年来各地对腐植酸的解磷作用进行了多方面的探索。多数结果表明,各种腐植酸及其盐类直接和磷矿粉混施或堆制,对磷矿粉中难溶性磷的活化作用很小
In order to solve the problem of acid production of phosphate fertilizer, in recent years, various aspects have been explored on the phosphorus-solubilizing effect of humic acid. Most results show that a variety of humic acid and its salts and phosphate rock directly mixed or piled on the phosphate rock phosphate in the activation of insoluble phosphorus is small