Look at the product identification. Each fertilizer bag should be marked with the product name, brand name, active ingredient content, net weight, standard number, production license number, manufacturer name, and site. No factory name, active ingredient, or product that implements the standard number can be purchased. Consumers must not be greedy and lose money.

Second, look at the test report. Whether it is imported fertilizer or domestic fertilizer should check the inspection report of fertilizer. The inspection report is best issued by the geological inspection department. The general inspection report includes the contents of nitrogen, phosphorus and potassium, total nutrient content, and grain strength and moisture content of the chemical fertilizer. Total nutrients are the decisive factor for fertilizer prices. It is good to have high grain strength and low water content. Then compare it with the label on the outer package, pay attention to the nutrient deviation of the label, the smaller the deviation, the better.

Thirdly, whether the chemical fertilizer contains chlorine or contains too much chlorine may have adverse effects on some crops. For example, the application of chlorine-containing fertilizers to crops such as vegetables, oranges, and sweet potatoes will affect the quality of the crops, and reduce the yield and income.

The fourth is to select some well-resourced chemical fertilizer distributors to purchase chemical fertilizers. When buying, try to select some well-known brands or chemical fertilizers that have been used and have good effects.

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