Cultivation Technique of Toona sinensis in Greenhouse

Toona sinensis, also known as Toona sinensis bud, Toona sinensis son, is the buds of Toona sinensis tree, not only delicious, but also very high in nutrients, deeply loved by consumers home-cooked dishes. Due to the limited season, Toona sinensis is eaten only in spring, resulting in a shortage of demand in the market, so planting greenhouse Chinese toon has become one of the most popular planting industries.

Planting technique of Toona sinensis in greenhouse

Toona sinensis bud is a kind of woody vegetable with high nutritional value. Toona sinensis can be propagated by seeds, or by plant division or cutting. Toona sinensis is mostly cultivated in the open field, and the dwarfing and dense planting technique is widely used. This method can not only sow directly, but also raise seedlings and transplant. The row spacing is 50cm and the plant spacing is 10~15cm. It can also be planted in clusters, row spacing 200cm, cluster spacing 100cm, 3-5 plants per hole. When the seedling height is close to 200cm, the top tip is removed and the lateral branches germinate to form three layers of backbone branches, and the spacing of each layer is about 40, 60 and 70cm, respectively. This method has stable yield and strong cold and drought resistance. In order to improve the planting benefit, Toona sinensis can be cultivated in protected area. It is necessary to dwarf and reshape the plants for protected cultivation.

The suitable planting density per mu is 2000-6000 plants. For the current year-old plants, when the seedlings grow to 4-6 true leaves in the first ten days of May, they can be planted according to wide and narrow rows, with wide rows of 80cm, narrow rows of 50cm, and plant spacing of 16~50cm. In early July, when the seedlings grow to 40~50cm high, they can promote dwarfing cultivation, and in the middle of August, they will be coring again. Specific to the heart-picking time of each plant should be controlled flexibly. For more than two-year-old plants, the apical dominance can be broken by flat stubble, the occurrence of branches can be promoted, and the purpose of dwarfing can be achieved. Generally, flat stubble in late June is appropriate, which can achieve the effect of dwarfing, clumping, multi-branching and full terminal bud. Toona sinensis is suitable for growing in neutral or weakly alkaline soil. Toona sinensis is a kind of tree species that likes moisture and avoids waterlogging. Stagnant water should be eliminated in time after rain.

Key points of planting Toona sinensis in greenhouse

1. Land preparation. The sunny leeward land with deep and fertile sandy loam and watering conditions should be selected. Turn about 50 centimeters deep, apply 4000 kilograms of soil fertilizer for every 15 hectares (1 mu) of land, irrigate thoroughly, make the border, the border width is 1 meter, the length is the same as the shed width.

The seedlings should be planted at about 3000 plants per 1/l5 hectare, and the seedlings should be sturdy seedlings with a height of about 0.5m and multiple top buds. It is appropriate to cover the shed from late November to early December. The size of the shed depends on the area. Built into an east-west arched scaffolding, 2 to 2.5 meters high, covered with grass to keep warm at night. Water once before covering the shed.

2. Management. The grass is opened at about 10:00 in the morning, so that the sun shines inside the shed, and the temperature inside the shed can be raised to about 20 ℃. Cover the grass at night to prevent heat loss and keep the temperature above 0 ℃. Generally, after about 50 days, Toona sinensis can begin to sprout and grow to about 20 centimeters before and after the Spring Festival. The economic benefits are considerable.

Field management

1. Fertilizer and water

After planting live trees, fertilizer and water should be applied in time, combined with intermediate ploughing and weeding to promote the rapid growth of seedlings.

2. Disease and pest control

The pests of Toona sinensis, such as Toona sinensis, Dendrolimus punctatus, Monochamus alternatus, etc., can be sprayed with 800x trichlorfon solution in larval stage and 1500 times dimethoate in adult stage. The diseases include leaf rust and powdery mildew, which can be controlled by 500 times trimethoprim. Clean the countryside in winter and reduce the overwintering base of diseases and insect pests.

3. Pruning

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.

Processing, curing and storage

After being processed and pickled, the buds can be stored for a long time and transported at any time. The method is simple and easy. Clean fresh buds with water, add 20 kilograms of salt every 100 kilograms after cooling and drying, one layer of buds, one layer of salt, less salt in the lower layer and more in the upper layer. Turn the cylinder after 4 hours, then turn the cylinder for the second time after 5 hours, turn it back and forth for a total of 5 times, marinate after about 20 days, remove and cool for 1 day, add a small amount of rice vinegar to increase gloss and brittleness, and then dry it to 5 hours, tie it into small handfuls every 100 grams, place it in a small jar, arrange it tightly, seal and store for 2 years.

Through the above, I believe everyone has a deeper understanding of planting Toona sinensis in greenhouse. Toona sinensis is a very delicious and nutritious food, the production method is simple and fast, because of the limited season, the enjoyment time is very short, but planting Toona sinensis in the greenhouse can easily solve this problem, and the yield is high, so it can be seen that the planting prospect of Toona sinensis is broad.