What are the planting prospects of Toona sinensis in 2019? The planting method of Toona sinensis is attached!

Toona sinensis is a kind of nutritious tree vegetable, which is eaten by picking tender Toona sinensis sprouts and scrambled eggs in many areas of our country. So, what are the planting prospects of Toona sinensis in 2019? What is the planting method of Toona sinensis?

1. analysis on the planting prospect of Toona sinensis

Toona sinensis is a precious fast-growing tree species for both wood and vegetables in China. Because of its excellent wood quality, it is known internationally as "Chinese mahogany". Its leaves are thick and tender, with green leaves with red edges, like agate and jade, with rich fragrance and much more nutrients than other vegetables. although Toona sinensis is distributed in more than 20 provinces and cities in China, there is still a lack of Toona sinensis resources in quite provinces. Toona sinensis can be supplied all the year round not only as a fresh vegetable through simple processing. The method of use is even more colorful. Therefore, it has been a favorite seasoning vegetable of our people since ancient times. In view of the fact that large and medium-sized cities like natural green vegetables, Toona sinensis sprouts are produced on a large scale and distributed to major hotels, restaurants, restaurants and supermarkets. In recent years, the United States, Germany, Japan and Southeast Asian countries have a strong demand for Toona sinensis.

According to the analysis of industry insiders, China's future vegetable industry is transforming to nutrition and health care. Toona sinensis bud is favored by people as a new type of vegetable which is famous, rare, special, both medicine and food. Therefore, the buds of Toona sinensis cultivated in out-of-season facilities will become a popular commodity, and its economic and social benefits are very significant.

II. Planting methods of Toona sinensis

1. Cultivation methods

Common cultivation of ①. 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.

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 and plants is 7x5 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 dense 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, and the Liu Xinfa branch only picks the tender leaves without removing the terminal bud, and then wipe its head when the branch is 20ml and 30cm long. It is characterized by a shorter trunk and more main branches.

③ protected cultivation. 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.

2. Management

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.

3. Picking

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.