Compound fertilizer is a granular fertilizer which is prepared by mixing nitrogen, phosphorus and potassium fertilizers in a certain proportion. It is easy to use and has high fertilizer efficiency and is very popular among farmers. However, there are many fake and inferior compound fertilizers in the rural fertilizer market, and farmers are easily deceived. So how do you identify the pros and cons of compound fertilizer?
A look: the high-quality compound fertilizer packaging bag has a clear font, the sealing is neat, the fertilizer particles in the bag are consistent, no large lumps, and less powder. If used with Canadian potash, red fine potassium fertilizer particles can be seen. Inferior compound fertilizers do not have these phenomena and characteristics.
Erqi: Hand grabbing a small compound fertilizer, leaving a layer of powdery white powder on the hand, and having a sticky feeling is a good quality compound fertilizer; if the particles are broken, it can be seen that the fine white crystals are also high quality products. The inferior compound fertilizer is mostly gray-black powder, has no sticky feeling, and has no white crystals in the particles.
Three burns: Take a little compound fertilizer on the iron and put it on the fire. A trace of ammonia indicates nitrogen, and a yellow flame indicates potassium.
Four dissolves: The high-quality compound fertilizer has good water solubility, and it is immersed in water, and most of it can be dissolved, even if a small amount of precipitate is fine. The fake and inferior compound fertilizer is hardly soluble in water, and the residue is rough and hard.
A look: the high-quality compound fertilizer packaging bag has a clear font, the sealing is neat, the fertilizer particles in the bag are consistent, no large lumps, and less powder. If used with Canadian potash, red fine potassium fertilizer particles can be seen. Inferior compound fertilizers do not have these phenomena and characteristics.
Erqi: Hand grabbing a small compound fertilizer, leaving a layer of powdery white powder on the hand, and having a sticky feeling is a good quality compound fertilizer; if the particles are broken, it can be seen that the fine white crystals are also high quality products. The inferior compound fertilizer is mostly gray-black powder, has no sticky feeling, and has no white crystals in the particles.
Three burns: Take a little compound fertilizer on the iron and put it on the fire. A trace of ammonia indicates nitrogen, and a yellow flame indicates potassium.
Four dissolves: The high-quality compound fertilizer has good water solubility, and it is immersed in water, and most of it can be dissolved, even if a small amount of precipitate is fine. The fake and inferior compound fertilizer is hardly soluble in water, and the residue is rough and hard.
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