PRODUCTS

How to identify chemical packaging symbol

by：Kolysen 2021-01-13

to properly identify the sign of chemical packing bag, is conducive to understand the chemical properties of the product and nutrient content, scientific and reasonable use. Usually, fertilizer bags of N, P2O5, K2O respectively on the nitrogen, phosphorus pentoxide, potassium hydroxide, its digital said its percentage content in the fertilizer, for example, the uplink write N, P2O5, K2O, down 20-20-0, says this kind of fertilizer per 100 kilograms of nitrogen and phosphorus pentoxide 20 kg each, but the content of potassium oxide is zero, namely that do not contain potassium fertilizers. These symbols also show the type of fertilizer, at the same time contains three elements nitrogen, phosphorus and potassium fertilizers called ternary compound fertilizer, only two of these elements are called binary compound fertilizer, and contains only one element called single fertilizer. Some fertilizer K2O behind a note on the bag ( S） Words, this means that the potassium in the fertilizer is potassium sulfate; Note if K2O behind the ( CL) Words, the potassium in the fertilizer is potassium chloride. In addition, some fertilizer manufacturers according to different crops, the difference of nitrogen, phosphorus and potassium requirements to produce only for the use of certain crops or some sort of crop fertilizer, called special compound fertilizer, compound fertilizer such as rice, soybean compound fertilizer, etc. , should be in production according to the crop fertilizer bags marked the name to use to the number, not misplaced.