What is authentic compound fertilizer? (What kind of compound fertilizer really meets the standards)

What kind of compound fertilizer is real?

1. The packaging bag of authentic compound fertilizer should have the implementation standard certificate number . According to the regulations of relevant departments, the unified standard certificate number of compound fertilizer (compound fertilizer) is GB15063-2009. Products that do not have this standard certificate number may have problems;

2. The packaging bag of authentic compound fertilizer should have a registration number. The registration number of different manufacturers is different . The registration number can be found online. After purchasing compound fertilizer, check the registration number online, which will show the manufacturer with the certificate. Then compare this information with the manufacturer information on the packaging bag.

3. The packaging of genuine products should also have a production license number. This license number is basically unique to each manufacturer, indicating that the manufacturer has the production qualification. When you check the license number online, the manufacturer information displayed should be consistent with that on the packaging bag.

How to distinguish the authenticity and quality of compound fertilizer

1. Look

First check whether the fertilizer has double packaging, whether the packaging indicates the trademark, production license number, fertilizer registration number, standard code, total nutrient content, name and address of the manufacturer, whether the inner bag has a product certificate, etc. Then check whether the fertilizer particles are uniform and consistent, and the quality is good if there are no large lumps and powder.

2. Knead

Rub a handful of compound fertilizer with your hands. If you feel grayish white powder on your hands and feel sticky and greasy, it is good quality. If you can see tiny white crystals in its particles, it is also a high-quality compound fertilizer . Inferior compound fertilizers are mostly grayish black powder, without a sticky feeling, and no white crystals in the particles.

3. Burn

   Take a small amount of compound fertilizer and place it on an iron sheet, and burn it over an open flame. If there is an ammonia smell and a yellow flame appears, it means it contains nitrogen and potassium. The stronger the ammonia smell and the yellower the yellow flame, the higher the nitrogen and potassium content, which means it is a high-quality compound fertilizer. Otherwise, it is a low-quality compound fertilizer.

4. Smell

Under normal circumstances, compound fertilizers generally have no odor, except for organic and inorganic compound fertilizers. If there is an odor, it is a low-quality compound fertilizer.

5. Dissolve

Put some fertilizer in a bowl of water and observe its dissolution. High-quality compound fertilizer has good water solubility and most of it can be dissolved in water. Even if there is a small amount of sediment, it is relatively small.

Inferior compound fertilizers are difficult to dissolve in water, and the residue is rough and abundant. The speed of dissolution is not the criterion for distinguishing quality, but only the degree of solubility.