The steps of tiger ginger seed seedling raising are as follows:
Land selection and land preparation: select sandy loam soil with deep soil layer, loose soil and good aeration, turn over the soil deeply, and apply sufficient base fertilizer.
Germination: Soak tiger ginger seeds in warm water for 24 hours, then spread them on a bamboo or straw mat ventilated outdoors, cover them with straw, and drench them with water every morning and evening to keep them moist. After about 1 week, the seeds begin to germinate, at which point the seeds are placed in the seedling tray or seedbed to continue growing.
Sowing: Sow the germinated seeds into the soil according to the row spacing of 20-25 cm and the plant spacing of 10-15 cm, and the thickness of the covering soil is about 2 times the diameter of the seeds.
Shade: Tiger ginger seedlings grow slowly, in order to prevent sunlight and strong direct light, it is necessary to set up shade nets or branches above the seedling bed.
Watering and fertilizing: Tiger ginger needs adequate water and nutrients to grow. According to the soil moisture and the growth of seedlings, water in time to keep the soil moist; At the same time, combined with watering for fertilization, you can apply well-rotted human and animal manure or nitrogen, phosphorus and potassium compound fertilizer.
Cultivating and weeding: During the growth period of tiger ginger, cultivating and weeding should be carried out in a timely manner to promote root development and seedling growth.
Pest control: The main diseases of tiger ginger are rust and spot blight, which can be controlled with stone sulfur mixture and Bordeaux liquid; The main insect pests are underground pests such as ground tigers and grubs, which can be used to trap adults with lights or use poisonous bait to trap larvae.
Harvesting and storage: Tiger ginger is generally harvested 2-3 years after planting. At harvest time, the whole rhizome is dug up, the soil is shaken off, the aerial part is removed, and the rhizome is broken into several segments, each with 2-3 bud eyes. Dry the broken tiger ginger until the skin is dry and store it in a ventilated and cool place. Keep it dry during storage to prevent moisture and insect damage.
Reproduction: Tiger ginger adopts a vegetative reproduction method, which is propagated with rhizomes. Robust, pest-free rhizomes are selected as propagation material and cut into several segments, each with 2-3 buds. According to the row spacing of 20-25 cm, plant spacing of 10-15 cm digging holes and planting, covering soil thickness of about 5 cm.
Through the above steps, you can successfully breed tiger ginger seedlings. In the process of raising seedlings, it is necessary to pay attention to the operation details and precautions of each link to ensure the healthy growth and quality of seedlings. At the same time, it is also necessary to pay attention to the relevant agricultural norms and laws and regulations to ensure the sustainable development of agricultural production.