How to plant Toona sinensis

Toona sinensis is a well-grown plant, and there is no particularly complicated procedure. As long as we master the scientific skills, Toona sinensis is delicious and nutritious, which is very good for the human body. There are also many practices of Toona sinensis, and some people will choose to plant it in the yard. So, the editor will come and talk to you about the planting method of Toona sinensis.

How to plant Toona sinensis

1. General cultivation.

The propagation of Toona sinensis can be divided into two types: sowing and seedling breeding and split propagation (also known as root tiller propagation). Because the germination rate of Toona sinensis seeds is low, the seeds should be soaked in 30 ℃ 35 ℃ warm water for 24 hours before sowing, and then placed at 25 ℃ to accelerate germination. Sowing when the rice grain is exposed to the radicle (the lowest ground temperature is about 5 ℃) is usually in the first and middle of March in Shanghai. After emergence, 2 Mel 3 true leaves time seedlings, 4 Mel 5 true leaves fixed seedlings, the row spacing is 25x15 cm. To propagate separately, the root seedlings can be dug up in early spring and planted on the seedling land. When the seedlings grow to about 2 meters in the next year, they will be planted again. The method of root-cutting and tillering can also be used to dig a circular ditch 60 cm deep around the adult tree in late winter and early spring, cut off part of the lateral roots, and then fill the ditch. Because the roots of Toona sinensis are easy to grow adventitious roots, new seedlings can be germinated at the end of root cutting and can be transplanted the following year. Spraying new high-fat film after transplanting can effectively prevent aboveground water from evaporation, seedling water from transpiration, cut off diseases and insect pests and shorten the slow seedling period. After the seedlings of Toona sinensis were cultivated, they were planted before germination in early spring. For large areas of Toona sinensis forest, the distance between rows is 7 x 5 meters. Planted in the canal, after the house, are one-way, plant spacing of about 5 meters. After planting, it should be watered for 3 times to improve the survival rate.

2. Dwarfing and close planting cultivation.

This is a kind of cultivation method developed in recent years. Its seedling raising method is the same as that of common cutting culture, but it is different in planting density and tree pruning. Generally, about 6000 plants are planted every 666.7 square meters. The tree type can be divided into two types: the multi-layer type and the cluster type: the multi-layer type is that the top tip is removed when the seedling is 2 meters high, and the lateral buds germinate, forming three layers of backbone branches, the first layer is 70 cm from the ground, the second layer is 60 cm from the first layer, and the third layer is 40 cm from the second layer. The trunk of this multi-layer type is higher, the Lignification is sufficient, and the yield is stable. The clump type is to go to the top tip when the seedling is about 1 meter high, leave the new branches to pick only the tender leaves without removing the terminal buds, and wipe the head when the branches are 20ml and 30cm long. It is characterized by a shorter trunk and more main branches.

3. Cultivation in protected area. It can also be divided into two types: one is to buckle the film of dwarf and densely planted Toona sinensis planted in greenhouse (or pipe shed) by mid-November. The other is to fake the dormant seedlings of 2023 in the greenhouse (or pipe shed). The temperature in the room (shed) is kept at 18 ℃ 24 ℃ during the day, and the night temperature is not lower than 12 ℃. The tender leaves can be picked after 45 days.

Seedling raising skills of Toona sinensis

1. Select high-quality seeds: choose the new seeds of the year, the seeds should be full, the color is fresh, red and yellow, the kernels are yellow and white, the purity is more than 98%, and the germination rate is more than 40%.

2. Heat preservation and budding: in order to produce seedlings neatly, it is necessary to carry out budding treatment. The method of accelerating germination is as follows: soaking the seeds in warm water of 40 ℃ for about 5 minutes, stirring constantly, then soaking them in water of 20 ℃ ~ 30 ℃ for 24 hours, soaking the seeds with enough water, pulling out the seeds, controlling the excess water, putting them on a clean Reed mat, spreading them 3 cm thick, covering with a clean cloth, and moisturizing and germinating in 20 ℃ ~ 25 ℃. During the budding period, turn the seeds once or twice a day and rinse them with 25 ℃ of water for 2 or 3 times to control the excess moisture. When 30% of the seeds sprout, they can be sown.

3. Sowing at the right time: select sandy soil and fertile soil with flat terrain, sufficient light and good drainage as seedling land, combined with soil preparation and fertilization, spread evenly and turn through. In a 1-meter-wide border, ditches were opened at a row spacing of 30 centimeters, with a width of 5 centimeters and a depth of 5 centimeters. The budding seeds were sown evenly and covered with soil 2 centimeters thick.

4. Seedling management: seedlings emerge about 7 days after sowing, and watering is strictly controlled before emergence to prevent soil consolidation from affecting seedling emergence. When 4-6 true leaves are unearthed, interseedling and fixed seedling should be carried out. Water the seedlings before setting the seedlings, and fix the seedlings with a distance of 20 cm. The dwarfing treatment of seedlings was carried out when the plant height was about 50 cm. Spraying 15% paclobutrazol 200 times 400 times every 10 to 15 days for 2 times in a row can control overgrowth, promote seedling dwarfing and increase material accumulation. The number of branches can be increased by paclobutrazol treatment combined with coring.

Cultivation and management of Toona sinensis

Although the field management of Toona sinensis is extensive, in order to make rapid growth and high yield, attention should be paid to fertilizer, water and pest control. If the weather is dry, it should be watered in time; ploughing and loosening the soil every year, interplanting green manure between rows, turning and pressing into the soil or watering human and animal manure in May. Insect pests include Toona sinensis, longicorn beetles, paramecium, etc., which can be controlled by pesticides such as Bacillus borer, and diseases such as leaf rust and powdery mildew can be controlled by Bordeaux solution, stone-sulfur mixture and so on.

Picking techniques of Toona sinensis

Common cultivation and dwarfing close planting cultivation of Toona sinensis generally germinate before the Qingming Festival, and the top buds can be picked before and after Grain Rain. This first pick, called the first stubble Toona sinensis bud, is not only fat and tender, but also rich in flavor and high quality; later, according to the growth situation, pick the second time every 15 minutes and 20 days. The newly planted Toona sinensis can be harvested 2 times at most, and 3 times a year after 3 years, and the yield will increase accordingly. As for protected cultivation, it can also be picked in winter by heating. If it is not heated, tree buds can be supplied in advance in early spring.

Post-planting management of Toona sinensis

1. Soil preparation and fertilization: sufficient base fertilizer must be applied to cultivate Toona sinensis in solar greenhouse. Apply not less than 5000 kg of high-quality farm manure, not less than 100kg of superphosphate and 25kg of urea per mu. Then the seedlings are planted in the whole border, which is usually 80cm wide and 100cm wide.

2. Planting density: the planting density is about 30,000 plants per mu, plant spacing is 15cm, row spacing is 15cm.

3. Temperature management: keep the temperature at 1 ℃ ~ 5 ℃ without heating in the first few days to slow down the seedlings. Cover the greenhouse with grass grass 10 days after planting, uncover it during the day and cover it at night. The temperature in the greenhouse was controlled at 18 ℃ ~ 24 ℃ in the daytime and 12 ℃ ~ 14 ℃ at night. Under this condition, Toona sinensis buds can grow after 40-50 days.

4. Hormone regulation: after planting slow seedlings, Baozhibao was used to treat the 4% 5 dormant buds in the upper part of Toona sinensis seedlings. 1 gram of medicine was coated with 100% 120 buds, which could make the buds full and strong, and the yield could be increased by 10% and 20%. Humidity regulation: Toona sinensis seedlings planted in the greenhouse should maintain high humidity. Pour water thoroughly after planting, and then pour small water according to the situation, and the relative humidity of the air should be kept at about 85%. During the growth period after germination, the relative humidity should be about 70%.

5. Light regulation: in the production of Toona sinensis in solar greenhouse, better light is needed to promote growth. Use drip-free film and keep the greenhouse film clean.

6. Harvest of Toona sinensis buds: Toona sinensis buds grow fast, purplish red and strong fragrance under suitable temperature conditions (18 ℃ ~ 24 ℃ in daytime and 12 ℃ ~ 14 ℃ at night). 40-50 days after the greenhouse was covered with grass grass, the buds of Toona sinensis began to be harvested when the buds grew to 15-20 cm and were well colored. The first crop of buds should pick the terminal buds clustered on the sprouts, leave the bolts slightly when picking, and pick the apical buds so that the leaves continue to be divided at the base of the remaining buds. Harvesting should be carried out in the morning and evening. In the greenhouse, the buds of Toona sinensis can be picked once every 7-10 days, for a total of 4-5 times, and each time they should be fertilized and watered.

After reading the above planting methods of Toona sinensis, have you mastered it? The editor's favorite food is Toona sinensis scrambled eggs and fried Toona sinensis. The smell of incense makes me salivate and have endless aftertaste. Friends who like can plant their own plants and pick them when they are mature to make Toona sinensis delicacies.