A look at the business qualifications of chemical fertilizer operators, whether there are legal procedures such as operating chemical fertilizer business licenses. Try to choose a store, or a company that is legal, large-scale, and reputable.
Second, look at the product certificate, fertilizer inspection form, and request purchase and sales vouchers (in case there is fertilizer quality disputes).
Third, look at the fertilizer logo, identify the type and nature of the fertilizer, and understand the nutrient content, use, usage, and precautions of the fertilizer. The national standard GB18382-2001 (Content requirements for fertilizer identification) stipulates that the fertilizer must indicate the total nutrient content (only N+P2O5+K2O) and must not add medium and trace elements or organic matter to the total nutrients. However, when inspections were conducted by relevant departments, there were still companies that added trace elements or organic matter to total nutrients to deceive consumers. When compound fertilizers are marked with chlorine or chloride ions, they should be used sparingly or cautiously on tobacco and other chlorine-tolerant crops. Use on seedlings should be kept away from the roots to avoid burning seedlings. Fertilizers marked with nitrate nitrogen are used with caution in paddy fields to avoid loss of nitrate nitrogen. Fourth, see if the fertilizer companies have gone through the relevant formalities. For example, the use of foliar fertilizers and microbial fertilizers is required to apply for the fertilizer registration certificate of the Ministry of Agriculture; for the use of compound fertilizers and organic fertilizers, provincial-level fertilizer registration certificates are required, and compound fertilizers are used for production licenses.
OEM is commissioned production, which is actually a way of "OEM production". It means that brand producers do not directly produce products, but use their own "key core technology" to design and develop new products, control sales channels, and hand over specific processing tasks to other enterprises. The manufacturers undertaking this processing task are called OEM manufacturers, Its products are OEM products. According to the requirements of another manufacturer, one manufacturer produces products and accessories for it. In the plant extract industry, products are generally powder in shape, but we can provide customers with OEM services and finished products they need.
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Xi'an Tian Guangyuan Biotech Co., Ltd. , https://www.tgybiotech.com