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施用磷肥时,作物当年只能吸收利用所施量的5—10%。如采用叶面喷施法则易导致药害。美国衣阿华州大学科研人员,发现若干种无机化合物含有磷肥成分,大量施用时无药害作用,能使作物显著增产。
The use of phosphate fertilizer, the crop can only absorb the amount of 5-10% applied. Such as the use of foliar spray rule easily lead to injury. Researchers at the University of Iowa in the United States found that a number of inorganic compounds contain phosphate fertilizer components, which are harmless when used in large quantities and can significantly increase crops.