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肥料之间有“相生”关系,也有“相克”矛盾。如多施磷肥,多余的有效磷与土壤中的有效锌结合形成难溶性的磷酸锌沉淀,而引起土壤有效锌的缺乏。不仅如此,多余的有效磷还会抑制作物对氮的吸收,引起氮的缺乏。即使是有机肥也不可过多施用。如果施用过多,土壤中微生物与农作物会出现“争氮”“夺氮”的矛盾,引起土壤一段时间内暂时缺氮,而且多余的有机质与锌形成络合物或螯合物,会降低锌的有效性。
There is a relationship between fertilizers, and there are also contradictions between each other. If more phosphate fertilizer, the excess available phosphorus and zinc in the soil combine to form insoluble zinc phosphate precipitation, causing the lack of available zinc soil. Not only that, the excess of available phosphorus will also inhibit the crop’s absorption of nitrogen, causing a lack of nitrogen. Even organic fertilizer should not be applied too much. If applied too much, the soil microbes and crops will appear “competing nitrogen ” “snatching nitrogen ” contradiction, causing the soil to temporarily nitrogen, and the excess organic matter and zinc to form complexes or chelates , Will reduce the effectiveness of zinc.