In today's fertilizer market, there are numerous products labeled as "organic fertilizer," with prices ranging from 300 to 4,000 yuan per ton. However, the quality of these products varies significantly, making it difficult for farmers to distinguish between genuine and substandard options based on packaging alone. This confusion often leads to misunderstandings among farmers, who may believe that all organic fertilizers are similar in quality and price. Some producers, who focus on product quality, mistakenly assume that higher-priced organic fertilizers are always better. These misconceptions create opportunities for unscrupulous sellers to take advantage of the market. So, is there a simple and effective way for farmers to identify quality organic fertilizers?
First, look carefully at the packaging. A legitimate organic fertilizer should have complete labeling, including the manufacturer’s name, address, and contact information. It should also meet the national standard NY-525, which requires a minimum total nutrient content (nitrogen, phosphorus, and potassium) of 5% and a minimum organic matter content of 10%. If these details are clearly marked, it's a good sign that the product is of acceptable quality.
Next, inspect the fertilizer itself. Open the package and examine the texture. Organic fertilizers typically come in powder, granular, or pellet form. However, if you notice many impurities inside, it could indicate poor quality. True organic fertilizers often have irregular particles due to their natural raw materials, unlike some industrial-made versions that may appear unnaturally smooth. These smooth granules might be made from waste materials, which can have lower nutrient value compared to those derived directly from plant or animal sources.
Ask about the raw materials used. High-quality organic fertilizers are usually made from natural ingredients like soybean meal, bone meal, fish meal, or amino acids, blended in the right proportions. Animal manure is another common source, but improper handling of industrial by-products can introduce harmful substances such as heavy metals, which may exceed safe limits.
Smell the fertilizer. Take a handful and check its odor. A strong, unpleasant smell may indicate that the product has not been properly processed or is decomposing. Using such fertilizers can lead to issues like seedling burn or the spread of pathogens, which can harm crops.
Lastly, try dissolving the fertilizer in water. Place a small amount in a container filled with water and observe how quickly it dissolves. Quality organic fertilizers usually become paste-like within 10 minutes. If it doesn’t dissolve well or leaves a lot of residue, it may not be of good quality. Pay attention to the presence of impurities after dissolution—more impurities suggest a lower-quality product.
By following these simple steps, farmers can make more informed decisions when choosing organic fertilizers, helping them avoid low-quality products and protect their crops.
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