In acid and alkali soil, there are mainly indissoluble bivalent or trivalent phosphates, which cannot be utilized by plants.
在酸碱性土壤中，磷主要以植物难以吸收利用的难溶性二价或三价阳离子的形式存在。
Alkali resistance and penetrability of different phosphates were tested.
通过实验考查了不同磷酸酯的耐碱性和渗透性。
Alkali resistance and penetrability of different phosphates were tested.
通过实验考查了不同磷酸酯的耐碱性和渗透性。
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