As the saying goes: "People mistakenly misplaced for a year." Once the farmers purchase and use the fake degraded fertilizer, the losses will be difficult to make up, which not only affects the enthusiasm of the peasants, but also harms the interests of the peasants. Here are some common methods for identifying true and false fertilizers:
First of all, look at the packaging of the fertilizer. The product name, nutrient content (grade), trademark, net weight, standard code, factory name, contact number, production license number and fertilizer registration number must be indicated on the fertilizer package. No or incomplete, the packaging is rough, it may be a fake and inferior compound fertilizer, and special attention should be paid to the fertilizer with obvious unsealing marks on the sealing of the bag. This phenomenon may be adulterated. In addition, pay attention to the date of production on the production certificate in the fertilizer bag. Fertilizers are stored for too long and total nutrients are lost. Second, look at the particle size (or crystalline state) of the fertilizer. The high-quality fertilizer has a uniform particle size and specific gravity, and the surface is smooth, not easy to absorb moisture and agglomerate, while the counterfeit fertilizer is just the opposite. The particle size is uneven, the surface is rough, the humidity is large, and the agglomeration is easy. Third, look at the color of the fertilizer. The quality of the high-quality fertilizer is very uniform, there is no obvious color difference, and the whole particles are even from the inside to the outside. Most of the fake fertilizers are painted on the surface and easily discolored.
The hand touched a handful of fertilizer and held it several times. The quality of the "oily wet" feeling was relatively reliable. Drying is likely to be a fake fertilizer.
Dissolve the fertilizer granules in a small amount of water. After a period of time, it can be judged according to the dissolution of the fertilizer. The good quality fertilizer granules will swell and disperse and dissolve. After the shock, the solution will be stable and almost free of residue. The solubility of the fake and inferior fertilizer is opposite to the above, and the dissolution is poor and there is residue.
The burning method is one of the simple methods for judging the true and false fertilizer and identifying the concentration. The fertilizer granules are heated or burned to identify the advantages and disadvantages of the fertilizer from melting, smoking, smoke and residue. After heating, the fertilizer will bubble, melt, smoke, and emit ammonia, and the particles will become smaller. The higher the concentration, the less the residue. The high-quality, high-concentration fertilizer burns completely and has almost no residue. Conversely, those that cannot burn or burn but have no ammonia smell are likely to be fake fertilizers.
First of all, look at the packaging of the fertilizer. The product name, nutrient content (grade), trademark, net weight, standard code, factory name, contact number, production license number and fertilizer registration number must be indicated on the fertilizer package. No or incomplete, the packaging is rough, it may be a fake and inferior compound fertilizer, and special attention should be paid to the fertilizer with obvious unsealing marks on the sealing of the bag. This phenomenon may be adulterated. In addition, pay attention to the date of production on the production certificate in the fertilizer bag. Fertilizers are stored for too long and total nutrients are lost. Second, look at the particle size (or crystalline state) of the fertilizer. The high-quality fertilizer has a uniform particle size and specific gravity, and the surface is smooth, not easy to absorb moisture and agglomerate, while the counterfeit fertilizer is just the opposite. The particle size is uneven, the surface is rough, the humidity is large, and the agglomeration is easy. Third, look at the color of the fertilizer. The quality of the high-quality fertilizer is very uniform, there is no obvious color difference, and the whole particles are even from the inside to the outside. Most of the fake fertilizers are painted on the surface and easily discolored.
The hand touched a handful of fertilizer and held it several times. The quality of the "oily wet" feeling was relatively reliable. Drying is likely to be a fake fertilizer.
Dissolve the fertilizer granules in a small amount of water. After a period of time, it can be judged according to the dissolution of the fertilizer. The good quality fertilizer granules will swell and disperse and dissolve. After the shock, the solution will be stable and almost free of residue. The solubility of the fake and inferior fertilizer is opposite to the above, and the dissolution is poor and there is residue.
The burning method is one of the simple methods for judging the true and false fertilizer and identifying the concentration. The fertilizer granules are heated or burned to identify the advantages and disadvantages of the fertilizer from melting, smoking, smoke and residue. After heating, the fertilizer will bubble, melt, smoke, and emit ammonia, and the particles will become smaller. The higher the concentration, the less the residue. The high-quality, high-concentration fertilizer burns completely and has almost no residue. Conversely, those that cannot burn or burn but have no ammonia smell are likely to be fake fertilizers.
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