How to distinguish potassium dihydrogen phosphate?

How to distinguish potassium dihydrogen phosphate? Hope that experienced netizens can help introduce the method. The farming network has sorted out three identification methods of potassium dihydrogen phosphate, which are listed below for netizens' reference. Method 1. The regular package is marked with the content of potassium dihydrogen phosphate (dry basis) ≥ 98%, rather than the total content of other elements ≥ 98%, or other total substance content ≥ 98%. The potassium oxide content (K2O) ≥ in the product is 33.2%. Not because of the inclusion of other phosphorus-containing substances, the surface phosphorus content reached, but its potassium (K2O) content is on the low side. Because whether the potassium content reaches the standard or not is the key to the application effect of potassium dihydrogen phosphate, the reasonable ratio of phosphorus and potassium in potassium dihydrogen phosphate makes the effect very good. Method 2, authentic potassium dihydrogen phosphate because of its high content of effective nutrients, the price is relatively high, if the price of the product is very low must be fake products, must pay attention to when buying. Because this kind of fake goods are easy to counterfeit, although they will not cause much harm to crops, they have spent money and energy in vain, but can not achieve the effect of increasing production and income. Method 3. Potassium dihydrogen phosphate, according to the national fertilizer registration management measures, is one of more than a dozen fertilizers that have been proved to be effective after long-term field use, and there is no need to apply for fertilizer registration certificate. Click to get more nitrogen, phosphorus, potassium application techniques click to get more chemical fertilizer application techniques