How to quickly identify fake pesticides, fake fertilizers and fake seeds? What should farmers do if they buy fake goods? You can tell the truth from the smell. Look at the color to quickly identify fake pesticides, fake fertilizers and fake seeds. Fertilizer is the key to agriculture. At present, there are many varieties of chemical fertilizers on the market, and it is difficult to distinguish between true and false. False fertilizer is very harmful to agriculture, which will not only cause direct economic losses to farmers, but also make crop losses greater than fertilizer itself because of missing the best fertilization opportunity. Therefore, farmers' friends must learn some methods to distinguish the authenticity of fertilizer when buying fertilizer, and introduce several common methods to distinguish the authenticity of fertilizer. We often detect the water temperature to distinguish the authenticity of urea: put a cup of warm water, grab a handful of urea and put it into the water, urea dissolves quickly and clearly, and the water temperature drops rapidly, indicating that the quality of urea is qualified; If the water temperature drops slightly, it means that the quality of urea is unqualified and the nitrogen content is low; If urea is fake, the water temperature will not drop.

True diammonium phosphate is hard and not fragile, while fake diammonium phosphate is easily broken. Grab a handful of fertilizer and hold it a few times, and there is a feeling of "oily wet", which is true. It is likely that it is pretending to be inferior compound fertilizer. A small amount of fertilizer particles are put into a container, melted with water, and a small amount of alkaline flour is added to the solution, so that qualified fertilizer can be foamed in a short time. It can be seen immediately that this is not diammonium phosphate.

See: Whether the fertilizer is packaged in double layers, and whether the outer packaging is marked with trademark, production license number, agricultural registration certificate number, standard code, total nutrient content and nutrient distribution method, name and address of the manufacturer. Touch: Hold half of the compound fertilizer by hand and knead it. There is a layer of gray powder and sticky feeling on the hand, and the quality is good. Inferior compound fertilizer is mostly gray-black powder, which has no cohesive feeling and no white crystals in the particles.

Combustion: Burning on an open flame, nitrogen has ammonia smell, potassium yellow flame has strong ammonia smell, yellow flame is yellow, the higher the content, otherwise it is inferior compound fertilizer. Solution: high-quality compound fertilizer has good water solubility, and most of it can be dissolved, even if there is a small amount of precipitation. But the inferior compound fertilizer is insoluble in water, and the residue is rough and hard. Taste: You can taste the potassium compound fertilizer containing red granules. Positive fertilizer has salty taste, while fake fertilizer generally has no salty taste. Smell: Compound fertilizer generally has no smell (except organic and inorganic compound fertilizer), and if it smells, it is inferior compound fertilizer.