There is a clever way to identify liquid fertilizer.

At present, there are many kinds of liquid fertilizers in the market. How to distinguish the quality of liquid fertilizers is mainly from several aspects: first look, second name, third smell and fourth freezing.

Look at the physical state. Good liquid fertilizer products are clear and transparent, clean and free of impurities, while poor quality products may contain a lot of solid insoluble matter.

Call the product quality. The heavier the liquid product of the same volume, the greater the specific gravity. Therefore, the specific gravity is an important index to measure the quality of liquid fertilizer products, good products do not necessarily have a large proportion, but the definite content of small proportion is not sufficient.

Smell the product. Good products have no smell. There is a strong ammonia flavor is the pH did not master, there is a special flavor is generally to cover some smells, there is a pungent smell is generally added substances that should not be added.

Freeze to check the stability. Good products will not crystallize layer by layer when kept in the refrigerator for 24 hours. If stratified crystallization, it is not a good selection of raw materials in the production process and did not control the production process.