How to choose spring plow fertilizer, do you know?

With the advent of the spring farming season, agricultural products are slowly entering the peak season of sales. Recently, the author contacted the law enforcement staff. They used past complaints and practical experience to tell the farmers that they should pay more attention to the following four aspects when buying agricultural products to avoid being deceived.

First, look at the packaging

Fertilizer packaging is fiber woven packaging, high-concentration fertilizer or unit fertilizer should be lined with polyethylene film bag to prevent moisture absorption. The packaging bag must have nutrient content, moisture content, production license number, product certification, quality implementation standards, manufacturer and site, and telephone number. Some cash crops (such as trees, tea leaves, tobacco leaves, etc.) must not be treated with chlorine-containing compound fertilizers. Special attention should be paid to the instructions on the packaging when purchasing.

Second, look at the color and shape

Such as ammonium bicarbonate is a white fine-grained crystal, urea is a colorless needle-like or prismatic crystal, compound fertilizer particle type uniform, uniform color, no powder or a little powdery, feel even particles, loose dry, not sticky, No caking. If the agglomerate shows that the water has absorbed moisture, the moisture content has exceeded the standard; superphosphate is an off-white or granular compound, and the general color is lighter and the powder is free of agglomerates. The higher the nutrient content, the darker the color and the higher the humidity, the higher the nutrient content. low.

Third, smell the smell

Different fertilizers have different odors. Such as ammonium bicarbonate with ammonia flavor; urea is an odorless granular material, there should be no ammonia; compound fertilizer should be slightly sour, on the hand after the mouth with the mouth after the observation, should release the deliquescence; superphosphate should be Slightly sour, should not have a pungent odor.

Fourth, leave the certificate

When purchasing, please obtain invoices, quality credit cards and other legally valid certificates. When using, you should keep the outer packaging bags of chemical fertilizers. When problems arise, promptly submit complaints to local industry and commerce and quality supervision departments.

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