How to plant Toona sinensis? Sowing methods and planting techniques of Toona sinensis

Toona sinensis, also known as Toona sinensis bell, Hong Lingzi, Toona sinensis bud, etc., is a plant of Toona sinensis of neem family. The tender bud of Toona sinensis is called "vegetable on the tree". It has the medicinal value of clearing away heat and detoxification, invigorating stomach and regulating qi, and is favored by consumers. So, how to plant Toona sinensis? Now the sowing methods and planting techniques of Toona sinensis are as follows.

1. Sowing method of Toona sinensis

1. Seed collection: Toona sinensis blossoms from May to June, the fruit matures from October to November, and the fruit is reddish brown when it is ripe. 15-30-year-old tall and robust mother trees should be selected to collect seeds, dry and clean seeds weigh 15 grams, and the germination rate is 40-50%.

two。 Soak seeds in heat preservation: soak the seeds in 40 ℃ warm water for about 5 minutes, then keep stirring, then soak them in 20-30 ℃ water for 24 hours. After absorbing enough water, remove the seeds, control the excess water and accelerate germination.

3. Moisturizing and sprouting: Toona sinensis seeds stand 3 cm thick and then covered with a clean cloth, put in 20: 25 ℃ environment to moisturize and accelerate germination, turn 1 / 2 times a day during germination and rinse 2 times with 25 ℃ of clean water for 2 times. 30% of the seeds can be sown when they germinate.

4. Sowing at the right time: Toona sinensis selects sandy soil and fertile soil with flat terrain, sufficient light and good drainage as seedling land, combined with soil preparation and fertilization, spread evenly, turn through, and sow the budding seeds evenly, covering 2 cm thick soil.

5. Seedling management: Toona sinensis seeds emerged about 7 days after sowing, and watering was strictly controlled before emergence to prevent soil consolidation from affecting seedling emergence. Interseedling and fixed seedlings should be carried out when 4-6 true leaves were unearthed.

2. Planting techniques of Toona sinensis

1. Soil preparation and fertilization: the cultivation of Toona sinensis in solar greenhouse must apply sufficient base fertilizer, not less than 5000 kg per mu of high-quality farm fertilizer, not less than 100kg of calcium superphosphate, 25kg of urea, spread evenly and turn deeply, and then plant seedlings on the whole border, generally 80mm 100cm wide.

two。 Planting density: the planting density of Toona sinensis is about 30,000 plants per mu with a spacing of 15 cm and a row spacing of 15 cm, and the dwarfing treatment of seedlings is carried out when the plant height is about 50 cm.

3. Temperature management: the temperature of Toona sinensis can not be heated in the first few days, keeping the temperature at 1 ℃ ~ 5 ℃ to slow down the seedlings. After 8 ~ 10 days of planting, the greenhouse was covered with grass grass, so that the temperature in the greenhouse was controlled at 18: 24 ℃ during the day and 12: 14 ℃ at night.

4. Hormone regulation: after planting slow seedlings, Toona sinensis was treated with Paozhibao. 4-5 dormant buds in the upper part of Toona sinensis seedlings were treated with Baozhibao. 1 gram of medicine was coated with 100 buds, which could make the buds full, the buds strong, and the yield increased by 10%.

5. Humidity regulation: Toona sinensis seedlings planted in the greenhouse should maintain a high humidity, pour water thoroughly after planting, and then pour small water according to the situation, the air relative humidity should be kept at about 85%, and the relative humidity during the growth period after germination should be about 70%.

6. Light regulation: the cultivation of Toona sinensis in solar greenhouse needs better light to promote growth, adopt no drip film, and keep the greenhouse film clean, and the number of branches can be increased by paclobutrazol treatment combined with coring.

7. Harvest of Toona sinensis buds: Toona sinensis buds grow to 15cm and start harvesting when they are well colored. Harvest should be carried out in the morning and evening. Toona sinensis buds can be picked once every 7 to 10 days in the greenhouse. A total of 4 buds can be picked for 5 times, and topdressing and watering should be required after each harvest.

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