Detailed Explanation of High-Efficiency Cultivation Techniques for Softened Ginger Shoots
Softened ginger shoots are rich in nutrients, sweet, crisp and tender, easy to store, and pollution-free. They can be harvested 40-45 days after the ginger seed is placed in the bed, and as long as temperature, humidity and ventilation are kept within a suitable range, they can be cultivated all year round.
1. Seed selection: It is advisable to choose white-fleshed ginger seeds with a high sprouting rate, plump buds, suitable size, proper color, and no pests or diseases. It is best to break the whole piece of ginger apart by the buds before sowing; each kilogram of ginger seed can produce 32 shoots.
2. Sprout promotion: Immediately dip the ginger pieces broken apart by the buds in a layer of plant ash for disinfection, then choose a sunny day to dry them in the sun for 1-2 days, turning them 1-2 times. Then stack the ginger seeds in layers indoors (generally the stack height should not exceed 10 cm), spray an appropriate amount of water, and cover with fine sand to keep warm and moist. Keep the temperature inside the stack at 25°C. Sow when the ginger has sprouted but has not yet rooted.
3. Seed arrangement: Arrange cement boards at a layer spacing of 50 cm, and build a wall around them with bricks as the base bed. Use fertile fine sand with good moisture retention as the bed soil. Spread 4-5 cm of fine sand on the bottom of the bed and level it, then arrange the ginger seeds with the buds facing up. Generally, arrange 20-25 kg of ginger seeds per square meter, and cover with another 5 cm of fine sand.
4. Water spraying: Spray water immediately after the ginger seeds are arranged, with the amount of water sufficient to soak through the sandy soil of the sprouting bed. When most ginger shoots emerge, spray a second time according to the dryness and wetness of the bed soil, with the amount of water sufficient to soak through the sandy soil of the sprouting bed. During the entire growth period, the bed soil should be kept moist but not waterlogged, and the indoor humidity should be controlled at 80%-90%. Also note that after spraying water, use fine sand to thoroughly cover the ginger pieces exposed around the sides and on the top surface of the sprouting bed, and the thickness of the fine sand above the ginger seeds should not be less than 5 cm.
5. Temperature regulation: The suitable temperature for ginger shoot growth is 23°C-30°C. To promote more and faster sprouting, before the ginger shoots emerge, the bed temperature should be controlled at 25°C-28°C; after the ginger shoots emerge and before the seedlings reach 30 cm in height, the temperature should be controlled at 28°C-30°C; after the seedlings reach 30 cm in height, it should be controlled at around 25°C. When the temperature is low, add film, straw and other coverings to increase warmth; when the temperature is high, open doors and windows and spray water on the ground and into the air to cool it down.
6. Ventilation: After the ginger seeds are placed in the bed, the room is kept tightly closed without ventilation. After sprouting, especially in the few days before harvest, ventilate appropriately according to the appearance of the sprouts to improve sprout quality.
7. Harvest: Generally, it is advisable to harvest 40-45 days after the ginger seeds are placed in the bed, when the sprouts are about 30 cm tall.