When it comes to spring plowing in one year, grass-roots agricultural distribution personnel and farmers' friends must make substantial preparations for spring farming. In order not to purchase counterfeit agricultural materials, we remind everyone to pay attention to the following aspects when buying agricultural materials: One must carefully choose the purchase channels. Agricultural distribution personnel are required to have good reputation and regular agricultural materials companies to wholesale and purchase; farmers’ friends need to purchase agricultural resources from agricultural resource management units (or individuals) that have a fixed place and complete licenses. Second, we must carefully check the packaging label. The purchaser should carefully check the packaging when purchasing agricultural resources, whether the label is complete, whether there is a certificate, name of the factory, trademark identification, production date, shelf life, and instructions for use. The purchase of seeds depends on whether the suitable cultivation scope includes the area. Third, read the product description carefully. Observe the scope of application, taboos, and correct methods of use. Use them scientifically in strict accordance with the requirements of the instruction manual to avoid unnecessary losses. Fourth, we must keep the shopping voucher intact. Require the wholesaler or retailer to clearly indicate the purchase time, product name, quantity, grade, specification, model, price, and other important information on the invoice. After use, pay attention to the retention of seeds, pesticides, fertilizer packaging, invoices and a small amount of the original product, and keep it in a safe place. If there is a problem with the product, it will facilitate better rights protection. Fifth, we must carefully identify genuine and fake pesticides. The national pesticide registration and management department has stipulated clearly the content of the pesticide product label. A complete pesticide product label content should include the name of the pesticide, the specification, the "three certificates" number (pesticide registration certificate, pesticide production approval certificate number, product standard number), and net weight. The lack of either the net capacity, manufacturer's name, address, zip code and telephone number, instructions for use, toxicity signs, cautions, date of manufacture, or batch number, etc. All should be doubtful about their quality. Seen from the outside of the product, there may be quality problems in powders, wettable powders, if there is agglomeration or if there is more graininess or uneven color. If the emulsifiable concentrate is precipitated or turbid, the emulsifiable concentrate may have deteriorated or expired. If the emulsifiable concentrate is diluted with water, such as emulsions with uneven or slick oil and sediments, the quality of the emulsifiable concentrate may be problematic. If the granules are of uneven color, the quality may be problematic. The agglomerating phenomenon still exists after the suspension agent shakes, and there is a problem in its quality possibility. Sixth, we must identify counterfeit seeds. Generally, the authenticity of the hybrid rice seeds is identified, and at the sight of cracking and stigma remnants. The cracking rate of hybrid rice is generally between 10% and 20%, while that of conventional rice and commercial grains is below 5%. At the same time, the hybrid rice is often exposed at the stigma remnants (black spots) at the joints inside and outside the seed (crust) joints, whereas conventional rice and commercial grains have no such phenomenon. Second, to see the husks, hybrid rice varieties generally have different shades of physiological brown stains, not smooth, while the conventional seeds or commercial cereal grain color is yellow, uniform and smooth. Three to see the uniformity of the seed particles. The seeds of hybrid rice have the same size, especially the phenomenon of no difference in length. Otherwise, there is a problem in the quality of seed purity. Seventh, we must carefully identify genuine and fake chemical fertilizers. A look at fertilizer packaging. Fertilizers produced by regular manufacturers have standardized and solid packaging, and generally have production licenses, implementation standards, registration licenses, trademarks, product names, nutrient content (grades), net weight, factory name, site, etc.; counterfeit fertilizer packaging It is rough, poor quality, easy to leak, and the information mark on the packaging bag is unclear. Second, look at fertilizer colors. Nitrogen fertilizer is almost all white except for lime nitrogen, some are slightly yellow-brown or light blue, potassium is white or red, and phosphate fertilizer is mostly dark gray. The third is to heat or burn the fertilizer sample on the iron skin, and identify the fertilizer from the flame color, melting condition, and the like. As pure urea is rapidly melted on fiery charcoal, it emits white smoke and has ammonia smell. If there is intense burning, strong light, and with "squeaking", or melting, it must be mixed with impurities. Superphosphate, calcium magnesium phosphate fertilizer, phosphate rock powder, etc. did not change on red wood charcoal. Potassium sulphate, potassium chloride, potassium sulphate, etc. did not change on red charcoal and only buzzed. The compound fertilizer burns off strong ammonia and has a lot of residue. 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