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过磷酸钙含有大量游离酸,连续大量施用,会造成土壤酸化。钙镁磷肥含有25％～30％的石灰,大量施用会使土壤碱性加重和理化性质恶化。
Superphosphate contains a lot of free acid, continuous large-scale application, will cause soil acidification. Calcium magnesium phosphate contains 25% to 30% of lime, heavy application will make the soil alkaline aggravate and physical and chemical properties deteriorate.