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化学肥料的特点是成分单纯,养分含量高,用量少,肥效快,施用、运输、保管都比较方便,能快速提高产量和质量。氮、磷、钾3种化学肥料可分为单质肥料、复合肥料、混合肥料。单质肥料即含一种元素,如硫铵、碳铵、尿素等,复合肥料即含两种或3种元素,如磷酸铵、硝酸钾;混合肥料是由硫酸铵和过磷酸钙混合而成的肥料。
Chemical fertilizers are characterized by simple ingredients, high nutrient content, less dosage, fast fertilizer, application, transportation, storage are more convenient, can quickly increase yield and quality. Nitrogen, phosphorus and potassium three kinds of chemical fertilizers can be divided into simple fertilizers, compound fertilizers, mixed fertilizers. Single-factor fertilizer that contains an element, such as ammonium sulfate, ammonium bicarbonate, urea, which contains two or three kinds of compound fertilizers, such as ammonium phosphate, potassium nitrate; compound fertilizer is a mixture of ammonium sulfate and superphosphate fertilizer.