Spring farming buy fat

Spring is the peak season for fertilizer sales and use. However, in recent years, false declining fertilizers have appeared on the market from time to time, causing many farmers to be deceived. This not only causes direct economic losses, but also delays agricultural time and affects agricultural production.

Look at the packaging: Where qualified chemical fertilizers are produced by regular manufacturers, their packaging bags are usually marked with the product name, nutrient content, net weight, origin, etc.; false degraded fertilizer packaging is rough, high breakage rate, incomplete or illegible signs Qing, sometimes not using Chinese characters with Pinyin to impersonate imported fertilizer.

Look at the price: As the saying goes: "Cheap without good goods." The price of false declining fertilizer is generally lower than the price of similar high-quality fertilizer on the market.

Look at the varieties: fake deteriorating fertilizers are generally based on compound fertilizers (such as diammonium phosphate, etc.), urea, superphosphate, liquid fertilizers, and foliar fertilizers. When purchasing such chemical fertilizers, special care must be taken.

Look at the appearance: Different chemical fertilizers often have different appearance characteristics, such as ammonium bicarbonate is white, with a strong ammonia odor; urea, ammonium sulfate, ammonium nitrate, ammonium chloride are all white granular crystals; superphosphate is gray white Powder, with acid-tipped taste; three-material superphosphate is a grayish gray, large and uniform particles, no odor; calcium magnesium phosphate fertilizer is a gray powder, no odor; potassium sulfate is a white powder crystal, no odor; diammonium phosphate is yellow Gray or iron gray particles, uneven particle size, volatile in a humid environment, ammonia smell. In addition, ammonium sulfate such as ammonium sulfate, ammonium nitrate, and ammonium chloride, and ammonium phosphate such as diammonium phosphate compound fertilizers are obviously placed on palms with a small amount of grass ash (or alkali or lime). Ammonia smell.

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