What does the Toon tree of the neem family look like? When can I eat it? How much is the seedling price? How many trees are planted per mu?

Toona sinensis, also known as Toona sinensis bud, incense pile head, red Toon tree, Chuntian, Toona sinensis bell, incense bell, Toona sinensis, Toona sinensis bud, is distributed in a wide range of areas in the north and south of the Yangtze River. What does the Toon tree look like? When can I eat it? How much is the seedling price? How many trees are planted per mu? Learned from Jiangxi Ganzhou seedling base, red oil Toona sinensis seedlings: height 5-3cm, unit price 0.5-1 yuan per plant.

What does the Toon tree look like?

1. Toona sinensis is a tree with rough, dark brown bark and flaky shedding. Leaves long stipitate, even-pinnately compound, 30-50 cm or more long Leaflets 16-20, opposite or alternate, papery, ovate-lanceolate or ovate-long-elliptic, 9-15 cm long and 2.5-4 cm wide, apex caudate, base rounded on one side, cuneate, asymmetric, margin entire or alienated serrate on the other, both sides glabrous, spotless, abaxially often pink-green, 18-24 on each side of lateral veins, spreading, almost at right angles to midvein, slightly raised abaxially Petiolule 5-10 mm long.

2. Panicles as long as or longer than leaves, sparsely rust-colored pubescent or sometimes subglabrous, Cymes on short branchlets, many flowered; flowers 4-5 mm long, with short pedicels; calyx 5-toothed or shallowly undulate, outside pilose and with eyelashes; petals 5, white, oblong, apex obtuse, 4-5 mm long, 2-3 mm wide, glabrous; stamens 10, of which 5 are fertile and 5 are degenerated. Disk glabrous, submoniliform; ovary conic, with 5 grooves, glabrous, 8 ovules per locule, style longer than ovary, stigma discoid.

3. The capsule is narrowly elliptic, 2-3.5 cm long, dark brown, with small and pale lenticels and thin petals; the seed base is usually obtuse, the upper end has long membranous wings, and the lower end is wingless. The flowering period is from June to August and the fruiting period is from October to December.

When can I eat Toona sinensis?

1. Toona sinensis generally germinates before the Qingming Festival, and the terminal bud 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 fragrance. People have been in the habit of eating Toona sinensis for a long time. As early as the Han Dynasty, our ancestors ate Toona sinensis and used it together with litchi as a tribute to the north and south. Song Su Song praised: "Toona sinensis is solid and leaf incense can be eaten." March in Yangchun is the season for eating Toona sinensis. Therefore, Toona sinensis is best eaten in spring.

2. Usually pick in the evening and blanch it with boiling water when eating, which can reduce nitrate. Mix it with foods that contain more vitamin C, such as eating more fresh fruit. Eat fresh, tender Chinese toon buds, the less nitrate content.

3. From the point of view of nutrition, it is better to eat Toona sinensis in early April. The study found that the tender Toona sinensis at this time is also the most nutritious, protein and amino acids have reached the peak, and the taste is also the best.

4. It is safe to eat fresh Toona sinensis buds just picked from the tree. After harvest, during storage at room temperature, a large amount of nitrate will be converted into nitrite, and the buds of Toona sinensis purchased from the market will be greatly increased because the nitrite content has gone through the transportation process. The content of nitrate in the initial stage of germination of Toona sinensis is lower, and the nitrite produced in storage is also less.

Toona sinensis is a seasonal vegetable. Many people like to freeze it and eat it every year. However, the Toona sinensis should also be blanched before it is frozen. When frozen for 2 months, the content of vitamin C in scald Toona sinensis is equivalent to 71% of that of fresh products, while only 35% of those not scalded. At the same time, no matter the color or flavor, it is more ideal to be scalded and frozen. After blanching, put it in a sealed plastic bag and put it in the freezer. It can be stored for more than 1 month to maintain its green and fragrant characteristics.

6. Many people like to salt the Chinese toon for two or three days before eating it, which is a very unsafe habit. Because after the Chinese toon is pickled, the content of nitrite will rise rapidly, reaching a peak in three or four days, far exceeding the permitted standard. The safest way is to marinate the blanched Toona sinensis for a week and then eat it after the nitrite content is reduced.

How many Toona sinensis trees are planted per mu?

1. Generally, 2-year-old seedlings of Toona sinensis were selected to enter the greenhouse, and seedlings with full terminal buds were selected. About 40000 seedlings were planted in the greenhouse of one mu of land. The market demand of red oil Toona sinensis seedlings in greenhouse is large, and the economic benefit is high.

2. Toona sinensis is a fast-growing woody vegetable with little water demand and high demand for potash fertilizer. Per 300m2 greenhouse, the base fertilizer needs about 2500 kg of fully mature high-quality farm manure, 75Mel 150kg of plant ash or 6kg of potassium dihydrogen phosphate and 6kg of diammonium carbonate. After each picking, according to the soil fertility, the growth of Toona sinensis and leaf color, appropriate amount of topdressing and watering.