2. Soaking beans: Rinse soybeans once, put them in a clean oil-free container, add water to about 8 ~ 1 cm above soybeans, and soak for 1 hours.
3. bean spreading: clean the seedling tray, put it in a germinating paper soaked with water, and then spread the clean soybeans evenly.
4. Rinse: In summer, beans usually grow up after soaking for about 1 hours. Rinse them with running water immediately and discard the miscellaneous beans.
Daily management
1. Temperature: When the temperature exceeds 3 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 should be left at the bottom of the dish, otherwise the roots may rot.
3. Light: Soybean seedlings must be protected from light. After spraying water, the seedling tray should be covered with a thick layer of moist gauze.
4. Germination: The soybean sprouts should be watered thoroughly, and the cotton cloth should be sprayed and covered on it. Generally, fine buds will be produced the next night.
Precautions
1. When the bean sprouts grow to 15mm long, water them thoroughly, leaving no dead ends to prevent red roots and rotten roots.
2. master the water temperature, water regularly, and use water without changing between cold and hot, so as to prevent the bud roots from becoming 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 5 mm long, the water temperature should be raised to increase the heat to prevent the bud root from blackening.
5. When the bean sprouts are almost 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.