磷酸二铵是一种速效性二元复合肥料。1公斤磷酸二铵所含有效成分相当于3公斤过磷酸钙和1公斤碳酸氢铵,有效成分较高,而且外观性状好。农民很乐意使用。但是,由于不少农户对它的化学成分及性质不甚了解,施用方法欠妥,因而未能使其充分发挥肥效。下面简要介绍一下磷酸二铵施用的注意事项。 Diammonium phosphate is a quick-acting binary compound fertilizer. 1 kg of diammonium phosphate contains active ingredients equivalent to 3 kg of superphosphate and 1 kg of ammonium bicarbonate, the higher the active ingredient, and good appearance. Farmers are happy to use. However, many peasant households failed to give full play to their fertilizer efficiency due to their poor understanding of its chemical composition and nature and improper application. The following briefly introduces the precautions for the DAP application.