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通过磷锌不同用量的室内培养试验和温室盆栽试验研究表明，大量施用磷肥降低了土壤锌的有效性，尤其是在缺锌的土壤中。白浆土锌分级测定表明，土壤中锌主要以矿物态存在，施用锌肥增加了交换态锌和氧化锰结合态锌含量；但同时施用磷肥，无定形铁结合态锌和品形铁结合态锌则有一定的增加，降低了土壤锌的有效性。施用磷肥也增加了锌在植株根部的积累，降低了植株地上部锌供应。磷锌交互作用不仅发生在土壤中，也存在于植株体内。在大量施用磷肥的同时，必须增施锌肥。
The indoor culture experiments and the greenhouse pot experiments of different amounts of phosphorus and zinc showed that the large amount of phosphate fertilizer reduced the availability of soil zinc, especially in zinc-deficient soil. Zinc grading of Albite soil shows that zinc is mainly in the mineral state in the soil. The application of zinc fertilizer increases the content of exchangeable zinc and manganese oxide bound zinc. However, the combination of phosphate fertilizer, amorphous iron bound zinc and product bound iron Zinc has a certain increase, reducing the effectiveness of soil zinc. Application of phosphate fertilizer also increased the accumulation of zinc in the roots of plants, reducing the supply of plant upper zinc. Phosphorus and zinc interactions occur not only in the soil, but also in the plant body. In the large number of phosphate fertilizer at the same time, we must increase zinc fertilizer.