Soybean selection
1, bean selection: spread the soybeans evenly on the seedling tray, and carefully select the beans. The first step is to select the ones that are wormy, black and not full of particles.
2. Soaking beans: Rinse the soybeans once, put them in a clean oil-free container, add water to the soybean for about 8 ~ 10 cm, and soak for10 hour.
3. Bean spreading: Clean the seedling tray, put it in a germinating paper soaked with water, and then spread the clean soybeans evenly.
4, washing: in summer, the beans have grown up a lot after soaking for about 10 hour. At this time, rinse them with running water immediately and discard the miscellaneous beans.
current management
1, temperature: When the temperature exceeds 30 degrees, soybean will affect its germination, and it will not rot only at a suitable temperature, and the suitable temperature for its germination is about 28 degrees.
2. Watering: Watering is the most important link. It should be kept moist at any time, but there should not be too much water, and no water can be left at the bottom of the dish, otherwise it may rot the roots.
3, light: soybeans must be protected from light, after spraying water, the seedling tray should be covered with a thick layer of moist gauze.
4, germination: the bean sprouts should be watered thoroughly, and the cotton cloth should continue to be sprayed and covered on it. Generally, fine buds will be issued the next night.
matters need attention
1, when the bean sprouts grow to 15 mm long, water them thoroughly without leaving dead corners to prevent red roots and rotten roots.
2, master the water temperature, water regularly, water is not hot and cold, in case the bud roots become reddish brown.
3. The watering temperature should not be too high and the water head should not be too short, otherwise the bean sprouts will only grow roots and not stalks.
4. When the bud is 50 mm long, the water temperature should be raised and the heat should be increased to prevent the bud root from blackening.
5. When the bean sprouts are ready, lower the water temperature for the last three times, and take them out in time after germination to prevent the bean sprouts from rotting in the middle.