1 When the seeds of soybeans are fully stored, they must be fully sun-dried. The water content should not be higher than 12%. If the water content exceeds 13.5%, the fatty acids will increase rapidly and the beans will soften quickly, even in the winter and spring. Can easily cause fever deterioration, can no longer be used for species. Therefore, it is more safe and reliable to require soybean seed to reduce its moisture content to about 10% before it is put into storage. 2 Low-temperature closed storage In order to maintain the quality and germination of soybean seeds, the storage temperature is preferably not to exceed 5°C. After the grain piles are cooled and put into storage, they should be covered with waste sacks, straw mats, etc. in a timely manner, so as to prevent the intrusion of external temperature. Can prevent insect fungus infection. 3 Remove impurities and damaged grains Soybean seeds mixed with impurities and damaged grains, strong moisture absorption, and easy to infect pests of stored grain, so that the grain piles return moisture, heat, insect mold, resulting in rancid soybean seed deterioration, and even lose food value The removal of impurities and crumbs are important measures for the safe storage of soybean seeds. 4 The pests during the storage of pest control soybean pests are mainly Indian moth and pink moth. The pest control measures are to level the surface of the grain, press the bamboo mat on the first floor or the sterilized sacks to prevent the moths from mating and breeding after spring. If worms are found, a small amount of seeds can be screened and disinfested or fumigated with drugs, that is, use a small dish to hold dichlorvos, use newspapers on the bottom, place on the surface of food, seal and steam for more than 72 hours, and the insecticidal rate reaches 100%. Seeds can be used to smokehouses. 5 Soybean seeds newly harvested and put into storage at the right time have more vigorous physiological activities, and hot and humid inside the grain piles are prone to aggregation. Therefore, in a dry sunny day, appropriate ventilation should be conducted to facilitate the dissemination of hot and humid grain, prevent condensation on the grain surface, mold loss. In the course of storage, it is generally based on the principle of appropriately lowering the temperature inside the store and dispersing water vapor. Keep the seed moisture between 5-25 °C. Therefore, soybean seed storage should use ventilation as the main means. However, whether it can be ventilated must be determined according to the temperature and humidity inside and outside the library. Ventilate in the following cases. 1 The temperature inside the library is higher than the outside of the library. 2 The temperature outside the library is the same, but the humidity outside the library is low. 3 The humidity outside the library is the same, but the temperature outside the library is low. 4 If the temperature outside the library is high and the humidity is low, or the humidity is high and the temperature is low, the absolute humidity of the air inside and outside the library must be calculated. If the absolute humidity outside the library is lower than the absolute humidity in the library, ventilation can be performed. Absolute humidity calculation method: absolute humidity = the amount of saturated air vapor (g/m3) relative humidity (%). Ventilation methods mainly use ventilation fans. Depending on the size of the warehouse, fans can be installed at one or both ends of the warehouse. 6 After regular inspection of soybean seeds, it is necessary to regularly check the temperature, humidity, seed temperature, moisture, germination rate, pests, birds, and rats, etc., in the library regularly, record well, and take effective measures to ensure safe storage of seeds.
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