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磷酸二铵在各地供应量逐年增加,对作物增产增收起到了应有的作用,但由于不少农户对它的成分、性质不甚了解,施用技术欠妥,未能使其充分发挥作用,经济效益不高。磷酸二铵是含五氧化二磷46%、氮18%的速效性二元复合肥料。1公斤磷酸二铵所含的有效成分,相当于3公斤过磷酸钙和1公斤碳酸氢铵。由于它是一种氮少磷多的复合肥料,故在施用上应掌握如下原则:
The supply of diammonium phosphate has been increasing year by year, which has played its due role in the increase of production and income of crops. However, due to the lack of understanding of the composition and properties of many farmers and the improper application of technology, their utilization has not been brought into full play and the economy Benefit is not high. Diammonium phosphate is a readily available binary compound fertilizer containing 46% phosphorus pentoxide and 18% nitrogen. 1 kg of diammonium phosphate contained in the active ingredient, which is equivalent to 3 kg of superphosphate and 1 kg of ammonium bicarbonate. Because it is a nitrogen and phosphorus less compound fertilizer, it should be in the application of the following principles: