Different types of compound fertilizers processed on NPK fertilizer production lines

 Compound fertilizers can be divided into low-concentration (total nutrients ≥ 25%), medium-concentration (total nutrients ≥ 30%) and high-concentration (total nutrients ≥ 40%) compound fertilizers according to the total nutrient content of nitrogen, phosphorus and potassium. According to its NPK fertilizer manufacturing process and processing method, it can be divided into compound fertilizer, compound fertilizer and blended fertilizer. Now let the fertilizer equipment manufacturer popularize it for you.


1. Compound fertilizer. It is a kind of ready-made simple fertilizer (such as urea, ammonium phosphate, potassium chloride, potassium sulfate, calcium superphosphate, ammonium sulfate, ammonium chloride, etc.) as raw materials, supplemented by additives, which is prepared, mixed and granulated by rotary drum granulator according to certain formula. At present, most of the compound fertilizers on the market are of this kind.
2. Mixed fertilizer. Also known as formula fertilizer, BB fertilizer, it is composed of more than two kinds of similar particle size of simple fertilizer or compound fertilizer as raw materials, according to a certain proportion, through simple mechanical mixing, is a mixture of various raw materials. This kind of fertilizer is generally mixed and used by farmers according to the soil nutrient status and crop needs.
3. NPK fertilizer. Fertilizer made by chemical reaction alone and containing two or more elements of nitrogen, phosphorus and potassium. It has fixed molecular formula and fixed nutrient content and proportion. Such as potassium dihydrogen phosphate, potassium nitrate, monoammonium phosphate, diammonium phosphate, etc.

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