Preparation of Cotton Seeds Before Storage One of the first choices for the preparation of cotton seeds is to select full-grown cotton seeds. The full and mature cotton seed coat has a dense and hard structure. The external wax can prevent the influence of external temperature and humidity. The seed coat contains about 7.60% of tannic acid, has a certain antibacterial effect, good storage, immature Cotton seeds are not resistant to storage. Therefore, we should choose the cotton flower before blooming for storage. The second is to remove unhealthy cotton seeds such as damaged grains, moldy grains, disease and insect particles. Strictly control the cotton seed storage index. The safe storage criteria for cotton seeds are as follows: moisture does not exceed 11%-12%, clarity is not less than 99.5%, and germination rate is above 80%. One of these three indicators is unsatisfactory and it is a substandard cotton seed and cannot be stored in storage. Second, the preparation of the warehouse should firstly conduct a comprehensive inspection of the warehouse to determine whether the doors and windows of the warehouse are closed, whether the insulation and sealing effects are intact, and whether the instruments that monitor the temperature and humidity of the warehouse can work normally. Followed by clearance and disinfection. Clearance and disinfection are the basis for preventing the mixture of species and pests. Clearance not only removes all varieties of cotton seeds, impurities, garbage, etc. from the warehouse, but also cleans the warehouse tools, transportation pipelines, and removes weeds outside the warehouse. Empty bins can be treated with trichlorfon or dichlorvos. During the storage of cotton seeds during the management of the work of humidity detection after entering the winter, the moisture is below 11%, check once every 5 days to 10 days. Less than 12% should be checked daily. Humidity inspection should be carried out at different locations and different levels within the warehouse. Ventilation must be based on the temperature and relative humidity inside and outside the warehouse. When the outside temperature and humidity are lower than the inside of the warehouse, it is the best time for ventilation. At this time, ventilation can reduce the temperature and humidity; when the temperature outside the warehouse is the same as the temperature in the warehouse, and the humidity outside the warehouse is lower than the warehouse or warehouse. Internal and external humidity is basically the same, or when the temperature outside the warehouse is lower than the inside of the warehouse, it can be ventilated. The former is mainly scattered and the latter is mainly cooled. Regular inspection of cotton seed quality During the storage of cotton seeds, the quality of cotton seed should be regularly checked so that the cotton seeds can be stored in a timely manner. The tests usually include cotton seed germination test, moisture determination, and determination of free fatty acids. If problems are found, they should be promptly resolved. Fire-retardant cotton has short fleece, and its oil content is high. When it encounters fire, it easily causes burning. Therefore, it is strictly forbidden to approach the cotton seed store and no flammable materials should be piled around the warehouse. China Agricultural Network Editor