Compound fertilizer packaging labeling standards include fertilizer name and trademark, total nutrient content and single nutrient value, must indicate the three certificate numbers, and the name and address of the production or distribution unit.

1. Fertilizer name and trademark

The name of the fertilizer specified by national standards and industry standards should be indicated. It can be marked in a small 1-size font under the product name. Untrue or exaggerated words are not allowed in product names.

2. Total nutrient content and single nutrient indicated values

Compound fertilizers should indicate the percentage of total nutrients N, P2O5, and K2O, and the total nutrient indicated value should not be lower than the compound formula The sum of the indicated values ??of the individual nutrients, other elements shall not be included in the total nutrients. Indicate the percentages of total nitrogen, phosphorus pentoxide, and potassium chloride respectively with matching formulas.

3. Three certificate numbers must be indicated

Production license number (compound fertilizer), agricultural registration certificate number and product standard number.

4. Name and address of the production or distribution unit

The name and address of the unit should be the name and address of a manufacturer or distributor that has been registered in accordance with the law and can assume responsibility for product quality. .

When purchasing diammonium phosphate, be sure to keep these three points in mind:

1. The total nutrient content represents the total of nitrogen (N) and phosphorus (P2O5). The content of nitrogen, phosphorus and potassium should be marked separately on the packaging, and the total nutrient content should also be marked.

2. Although diammonium phosphate does not contain potassium, the potassium (K2O) content must be marked as "0", and other nutrients cannot be marked or not marked.

3. The implementation standard is GB10205-2009.