When purchasing chemical fertilizers, it's essential to carefully examine the packaging. Legitimate fertilizers from reputable manufacturers usually have clear and professional labeling in Chinese, including details like the product name, nutrient content (such as N-P-K values), net weight, origin, and production date. On the other hand, fake or substandard fertilizers often have poorly printed labels, missing information, or even illegible text. Some counterfeit products may avoid using Chinese characters altogether and instead use pinyin or misleading foreign language labels to falsely appear as imported products.
Another important factor is the price. As the saying goes, "cheap is not always good." Fake fertilizers are often sold at significantly lower prices than genuine ones. If a deal seems too good to be true, it probably is. Be cautious of unusually low prices, especially when compared to similar high-quality products on the market.
In terms of types, fake fertilizers commonly include compound fertilizers such as diammonium phosphate, urea, superphosphate, liquid fertilizer, and foliar fertilizer. These are more frequently targeted by counterfeiters. However, ammonium bicarbonate is rarely faked, as it has a distinct appearance and strong ammonia smell that makes it easier to detect.
Different chemical fertilizers have unique physical characteristics. For example, ammonium bicarbonate is white with a strong ammonia odor. Urea, ammonium sulfate, ammonium nitrate, and ammonium chloride are all white granular crystals. Superphosphate is typically a grayish-white powder with a sour taste. Triple superphosphate appears blue-gray, with large and uniform particles and no odor. Calcium-magnesium phosphate is an off-white powder without any smell. Potassium sulfate is a white crystalline powder, while some may appear iron-gray, with uneven particle size, and tend to release ammonia in humid conditions.
Additionally, fertilizers containing ammonium nitrogen, such as ammonium nitrate, ammonium sulfate, ammonium chloride, and ammonium diammonium phosphate, will emit a noticeable ammonia smell when mixed with a small amount of wood ash, lime, or an alkaline surface. If a fertilizer does not match these expected traits, it could be a sign of being fake or deteriorated.
Always purchase from trusted suppliers and take the time to verify the quality of the product before making a purchase. Being informed can help you avoid costly mistakes and ensure your crops receive the proper nutrients they need for healthy growth.
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