Nensheng's bean sprouts are one of the best-selling varieties in the vegetable market, but sprouting often occurs during the sprouting process in the summer. The main causes are: 1) The beans themselves carry germs; 2) The containers and utensils of the sprouts are not sterilized; 3 when the temperature of bean sprouts is too high; 4 watering is not timely and water quality is not clean and air pollution. Therefore, comprehensive prevention should be carried out according to the specific cause of the disease. (1) Soybeans should be selected and selected for no mildew, no worms, full-filled beans, washed with 0.5% lime water before soaking the beans, and hot water may be used to disinfect and sterilize the beans. Activity, improve the germination rate of beans. (2) The site should be equipped with a 40W ultraviolet germicidal lamp in the cleaning site, and it is often turned on for sterilization. The production site is managed by special personnel to prevent outsiders from entering. The bean sprout production personnel are strictly prohibited from contacting with oil and chemical products. (3) Appliances Containers to be disinfected to produce bean sprouts should be kept clean. Generally, 0.5% bleaching powder or 5% alum solution can be used, and can also be burnt several times with a torch to kill the attached pathogens. (4) Temperature Control The growth temperature of bean sprouts should be 20°C-25°C. During the production process, room temperature must be adjusted to allow bean sprouts to grow in a suitable environment and reduce the occurrence of rotten buds. (5) The operation should be conducted scientifically in summer to grow bean sprouts. Soaking beans is the key. The amount of water used for soaking the beans is good, and the water is basically dried. It is required that the beans should be mixed once every 10 minutes within 1 hour before soaking so as to make the beans evenly draught. If there is too much draught, the breathing space is small after entering the cylinder, the bean germination is slow, and it is easily infected; if the draught is small, the germination time is inconsistent, uneven, and the appearance is not beautiful. (6) Sterilization should be timely. In the early stage of bean sprouts buds, use a “8503†agent to spray a packet of water at 2.5kg, spraying once every 4h, to inhibit the spread of germs, or to dilute 200 times with ej-2 disinfectant. Can also control the condition.
