含有害离子的肥料。氯化铵、氯化钾等含有氯离子,施入土壤后,会产生水溶性氯化物,对种子发芽和幼苗生长不利;硝酸铵和硝酸钾等肥料中含有硝酸根离子,对种子发育有影响。 有腐蚀作用的肥料。碳酸氢铵具有腐蚀性和挥发性,对磷酸钙含有游离态的硫酸和磷酸,两者对种子都有强烈的腐蚀作用。如必须用作种肥, Contains harmful ions of fertilizer. Ammonium chloride, potassium chloride and other chloride ions, applied to the soil, will produce water-soluble chloride, the seed germination and seedling growth adversely; ammonium nitrate and potassium nitrate and other fertilizers contain nitrate ions, affecting seed development . Corrosion of the fertilizer. Ammonium bicarbonate is corrosive and volatile, contains free sulfuric acid and phosphoric acid for calcium phosphate, both of which have a strong corrosive effect on the seeds. If you must use as a kind of fertilizer,