Planting technique of Toona sinensis

Toona sinensis is a kind of food similar to branches, which can only be seen on spring trees in early spring. Toona sinensis actually tastes good. People usually use it to fry eggs and have high nutritional value. Now many people will plant this kind of toon to increase economic income, after all, the price of Toona sinensis is still relatively high.

Video on planting techniques of Toona sinensis

1, seed selection: select 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 sprouting: in order to promote germination, soak the seeds in warm water of 40 ℃ for about 5 minutes, stirring constantly, then soak the seeds in water of 20 ℃-30 ℃ for 24 hours. After absorbing enough water, remove the seeds, control the excess water, put them on a clean Reed mat, spread them 3cm thick, cover with a clean cloth, moisturize and germinate under the environment of 20 ℃-25 ℃, and during the period of germination. Turn the seeds 1-2 times a day and rinse 2-3 times with 25 ℃ of clean water 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, spread evenly, turn through, trench according to 30 cm row spacing in 1 meter wide border, ditch width 5-6 cm, ditch depth 5 cm, sow the budding seeds evenly and cover 2 cm thick soil.

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

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

Conditions for the survival of Toona sinensis

Toona sinensis is a temperate plant, the suitable temperature for seed germination is 20-25 ℃, the suitable temperature for seedling growth is 15 ℃-25 ℃ during the day and 10-15 ℃ at night, 20-24 ℃ is needed for normal growth in the protected field, and the temperature of 8-20 ℃ can grow normally. The seedlings with strong low temperature tolerance can still cross the field safely under the low temperature of-20 ℃ in winter. After the middle of October, when the temperature dropped below 10 ℃, the seedlings began to shed leaves and generally dormant for about 4 friends, but in the solar greenhouse, the dormancy period was only 30-60 days, but there were great differences among different varieties.

Pruning skills of Toona sinensis

After the harvest of Toona sinensis buds in spring every year, from mid-June to early July, the trunk was pruned (beheaded) at a height of 20 cm above the ground to promote the lateral buds to germinate into new branches. From late July to early August, according to the strength of the new branch growth, the strong growth can be topped in advance, on the contrary, the topping can be postponed, combined with fertilizer and water management to promote the formation of full terminal buds. Toona sinensis bud growth period is short, should eat early, eat fresh, eat tender, there is a proverb "Toona sinensis buds as tender as silk before rain, as wood buds after rain". The harvest standard is purple-red bud with a length of 10 cm and 15 cm. When harvesting, the top buds should be picked first and then the lateral buds. If the terminal buds are not harvested, the lower lateral buds will be difficult to grow or grow poorly. When picking buds, gently pick the petiole by hand, tie it into small bundles of 100g to 200g, seal it with plastic bags to prevent water loss and wilt, and improve the quality of the market. The buds can be harvested 3 times and 4 times a year, with a yield of 400 kg and 500 kg.

Pest control of Toona sinensis

1. Powdery mildew of Toona sinensis. Prevention and treatment: remove diseased branches and leaves in time and burn them. Strengthen tending management, rational fertilization, enhance the growth potential and disease resistance of trees. Toona sinensis can be sprayed with 5 Baumetu stone sulfur mixture once before germination, and 0.3: 0.5 Baomedo stone sulfur mixture for 2 times in the growing season. The branches and leaves can also be sprayed with 2.5% trimethoprim 1 500 × 2000 times, or 25% sulfur suspension 200 times, 0% methyl topiramate and 50% carbendazim 600 times 800 times. Baumedu stone-sulfur mixture was sprayed 2 times for 3 times. The branches and leaves can also be sprayed with 2.5% trimethoprim 1 500 × 2000 times, or 25% sulfur suspension 200 times, 0% methyl topiramate and 50% carbendazim 600 times 800 times.

2. Dry blight of Toona sinensis. Prevention and treatment: remove the infected branches in time and burn them to reduce the source of infection. The trunk is painted white in winter and spring. Drug control in the initial disease spot to make some small holes, deep to the xylem, and then spray 70% topiramate 200 times liquid for prevention and treatment. Reasonably prune the wound with Bordeaux solution or stone sulfur mixture. Strengthen the management of fertilizer, water and tending, enhance the tree potential, improve the ability of disease resistance and prevent infection.

When we plant Toona sinensis, we should choose good quality seeds, so that the survival rate will be high. Be sure to apply base fertilizer before planting Toona sinensis, knowing that Toona sinensis likes to grow in areas where the soil is fertile. Pest control in the later stage is also very important, chemical control and physical nuisance should be done in place.