How to preserve cotton seeds in winter?

How to preserve cotton seeds in winter? What should I pay attention to? Please introduce the method of winter cotton seed storage methods can refer to the following list: 1, cotton seed preparation first choose full mature cotton seed. The structure of the full and mature cotton seed coat is dense and hard, and the wax can defend against the influence of external temperature and humidity. The seed coat contains about 7.60% tannic acid, which has a certain antibacterial effect, good storability, and immature cotton seeds are not resistant to storage. Therefore, the cottonseed of pre-frost flower should be selected for seed storage. The second is to remove damaged seeds, mildew seeds, disease and insect seeds and other unhealthy cotton seeds. The index of cotton seed storage should be strictly controlled. The standard for safe storage of cotton seeds is that the moisture content does not exceed 11% Murray 12%, the purity is not less than 99.5%, and the germination rate is more than 80%. If one of these three indexes is not reached, it will be unqualified cotton seeds and cannot be stored in storage. 2. The preparation of the warehouse should first make a comprehensive inspection of the warehouse to determine whether the doors and windows of the warehouse are closed flexibly, whether the heat insulation and sealing effect are intact, and whether the instruments for monitoring the temperature and humidity of the warehouse can work properly. The second is clearance and disinfection. Warehouse clearance and disinfection are the basis for preventing mixed varieties and breeding of diseases and insect pests. Clearance will not only remove different varieties of cotton seeds, impurities, garbage, etc., but also clean up warehouses, transportation pipes and weeds outside the warehouse. Empty warehouse disinfection can be treated with trichlorfon or dichlorvos. Precautions for cotton seed storage: moisture content is less than 11% after humidity inspection, once every 5 to 10 days. Less than 12% should be checked every day. Humidity inspection should be carried out in different directions and at different levels in the warehouse. Ventilation must be based on temperature and relative humidity inside and outside the warehouse. When the external temperature and humidity are lower than that in the warehouse, it is the best time for ventilation, when the temperature outside the warehouse is the same as the temperature inside the warehouse, and the humidity outside the warehouse is lower than that inside the warehouse or the humidity inside and outside the warehouse is basically the same, or when the temperature outside the warehouse is lower than that inside the warehouse, it can also be ventilated, the former is mainly to dissipate humidity, and the latter is mainly cooling. Regular detection of cotton seed quality during storage, cotton seed quality should be checked regularly in order to know the storage situation of cotton seeds in time, which usually includes cotton seed germination rate test, moisture determination and free fatty acid determination. If problems are found, they should be solved in time. Fireproof cottonseed has short velvet and high oil content, so it is easy to burn when it comes to fire. Therefore, it is strictly forbidden to spark near the cotton seed warehouse, and do not pile combustibles around the warehouse. Click to get more cotton planting technology click to get more food crop planting technology