Second, look at the inspection report. Whether it is imported fertilizer or domestic fertilizer, you should check the chemical fertilizer inspection report. The inspection report is preferably issued by the local quality inspection department. The general inspection report contains the respective contents of nitrogen, phosphorus and potassium of the fertilizer, total nutrient content, particle strength and water content. Total nutrients are the decisive factor for fertilizer prices, and high particle strength and low water content are good. Then compare it with the logo on the outer packaging, pay attention to the nutrient deviation of the logo, the smaller the deviation, the better.
Third, see if the chemical fertilizer contains chlorine, and the chlorine content is too high, which has adverse effects on some crops. For example, when applying chlorine-containing fertilizer to vegetables, citrus, sweet potato and other crops, it will affect its quality, but reduce production and reduce income.
The fourth is to select some reputable fertilizer distribution units to purchase fertilizers. When purchasing, try to choose some famous brands or fertilizers that have been used and have good effects.
Huaxian County Soil and Fertilizer Station
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