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Look at the price As the saying goes: "Cheap is not good." The price of fake deterioration fertilizer is generally lower than the price of similar high-quality fertilizer on the market.
Look at the varieties of fake deterioration fertilizers generally with compound fertilizers (such as diammonium phosphate, etc.), urea, superphosphate, liquid fertilizer, foliar fertilizer, etc., in the purchase of such fertilizers, pay special attention; ammonium bicarbonate and other fertilizers in Fake goods are rare on the market.
Fertilizers with different appearances often have different appearance traits, such as ammonium bicarbonate as white, with strong ammonia odor; urea, ammonium sulfate, ammonium nitrate, ammonium chloride are white granular crystals; super-calcium carbonate is gray-white powder, Sour thorn taste; heavy superphosphate is blue-gray, large and uniform granules, no odor; calcium magnesium phosphate is gray-white powder, no odor; potassium sulphate is white powder crystal, no odor; diammonium phosphate is yellow ash or iron Gray granules, non-uniform in size, volatile in a humid environment, with an ammonia smell.
"Four look" ready for fat
Look at the qualified chemical fertilizer produced by the regular manufacturer. The package name is usually marked with Chinese characters, nutrients and their contents, net weight, place of origin, etc.; fake deterioration of fertilizer packaging is rough, damage rate is high, signs are incomplete or the writing is illegible Sometimes, you don't need Chinese characters to use pinyin to pretend to be imported fertilizer.
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