磷酸二氢钾是一种氮磷复合肥,含磷(P_2O_5)24％,钾(K_2O)27％,纯品为白 色或灰白色粉末,易溶于水,呈酸性反应。工业生产磷酸二氢钾,是用等量的硫酸钾、磷酸相作用而成。由于磷酸二氢钾价格较高,目前多用于根外追肥(叶面喷洒),主要用于小麦、棉花和甜菜,一般增产10％以上。施用方法以浸种和喷施为好。浸种肥液浓度为0.2％,一般将 Potassium dihydrogen phosphate is a kind of nitrogen and phosphorus compound fertilizer, containing 24% of P 2 O 5 and 27% of K 2 O. The pure product is white or off-white powder, easily soluble in water and has an acidic reaction. Industrial production of potassium dihydrogen phosphate, is the same amount of potassium sulfate, phosphoric acid phase role. Due to the higher price of potassium dihydrogen phosphate, it is currently mostly used for root top dressing (foliar spraying) and is mainly used for wheat, cotton and sugar beet and generally yields more than 10%. Application method soaking and spraying as well. Seed soaking fluid concentration of 0.2%, generally will