About the chestnut tree, the growth habits of the chestnut tree

Chestnut trees are tall deciduous trees with leaves that are not very broad and long, with notched corners at the edges. White flocculent long striped flowers, (like caterpillars). The outside of the fruit is covered with a thick skin covered with thorns, the seeds are covered with a hard skin, and the inside is covered with a membrane to cover the pulp.

The chestnut flavor is fragrant, and the chestnut after harvest is very sweet. It can also be boiled and eaten. There is a feeling of face.

Ecological agriculture Jiuduhe Town has enjoyed the reputation of "the hometown of flowers and fruits" in history, mainly producing chestnuts, walnuts and other dried and fresh fruits, and there are still 10,000 native chestnut trees in the town of the Ming and Qing dynasties. Chestnut is a chestnut plant of the family Shellaceae, native to China, Sima Qian's "Historical Records" has a description of the abundance of chestnuts in the Youyan area. In the Tang Dynasty, Huairou chestnuts were set as tribute, and the Liao Dynasty had set up the "Nanjing Chestnut Garden Division" to manage chestnut production.

The village with the most annual chestnut production in Huairou is Jiuduhe Village, Jiuduhe Town. There are 2 chestnut trees in Jiuduhe Town: "Chestnut King" is 300 years old, with a dry diameter of meters, a tree height of meters, a crown width of 18 16 meters, divided into eight main branches, covering an area of more than 250 square meters; "Da Ming Chestnut" series was planted in the Ming Dynasty, so it is called "Da Ming Chestnut", the age of the tree is 500 years, the dry diameter is meters, the height of the tree is 25 meters, the dry height is meters, and the vertical projection area of the crown width is 342 square meters.

At present, Jiuduhe Town has a total of 100,000 acres of chestnut, with an annual output of more than 4 million kilograms.

When I kill insects, I spray it in the autumn and winter.

In autumn and winter, the prevention and control of pests and diseases mainly does a good job in the sanitation of chestnut woodlands, carries out woodland cleaning, and completely removes parasites such as dead branches, fallen leaves, rotten fruits, and weeds under trees. Turning it into the soil and burying it deeply, or burning it intensively, can eliminate overwintering bacteria and pests.

If you can spray organophosphorus insecticides now, such as dimethoate, phosphine, kung fu, etc.

Note: Before 9 a.m. or after 4 p.m.

It likes mild and warm climate, is cold-resistant, can withstand -30 low temperatures, is drought-resistant, waterlogg-resistant, and light-loving. The requirements for soil are not strict, and it likes fertile, warm, well-drained sandy or high-quality loam soil, and has strong resistance to harmful gases. Avoid stagnant water and heavy soil clay.

Deep-rooted, well-developed root system, strong germination, resistant to pruning, and more insect pests. The flowering period is from April to June, and the fruiting period is from August to October.

The fruit chestnut of the chestnut tree has very rich nutritional value, and has the effects of strengthening the spleen and stomach, invigorating qi, tonifying the kidney, strengthening the waist, strengthening the tendons, stopping bleeding, reducing swelling and strengthening the heart.

1. Soil: Chestnut trees should be planted with loose texture and well-drained soil, and using too sticky soil will affect its growth to a certain extent and cause root rot.

2. Watering: A lot of water will be lost after harvesting, and it is relatively dry in autumn and winter, and it is easy to be affected by drought, so it should be watered in time to ensure the water it needs.

3. Light: Chestnut trees should receive sufficient light during the growth period, which can promote photosynthesis, and if they do not receive sufficient light, it will affect the yield.

4. Temperature: Give it a growth environment of 10-20, the temperature is too low in winter and it will be frost damaged, and the temperature in summer should not be too high, it is easy to make it grow poorly.

1. Sowing and propagation: sowing is generally carried out in March and April, and the seeds should be sterilized and sterilized with methyl tobuzin solution before sowing, and the suitable soil should be prepared and the seeds can be sown.

2. Grafting and propagation: grafting is generally best carried out in 8-10 months, splitting is carried out 20 days before germination, after the new shoots are spread and the infusion flows, about 20 days after the germination of new shoots, it is best to tie it tightly with plastic film after grafting, which can reduce water evaporation.

First, the planting environment.

1.Soil: Chestnut trees should be planted with well-drained loose soil.

The soil that is too sticky will affect its growth to a certain extent, resulting in root rot. 2.Watering:

After harvesting, a lot of water is lost, and autumn and winter are relatively dry and prone to drought. So water it in time to ensure that it needs the water. 3.

Light: Chestnut trees need to receive sufficient light during their growth, which can promote photosynthesis. If not enough light is received, the yield will be affected.

4.Temperature: Give it a 10-20 growing environment.

In winter, when the temperature is too low, it will suffer from frost damage. If the temperature is not too high in summer, it is easy for it to grow badly.

Second, the method of reproduction.

1.Sowing propagation: Sowing is generally carried out in March-April.

Before sowing, the seeds should be disinfected with methyl tobin solution and suitable soil should be prepared before sowing. 2.Graft propagation:

Grafting is generally best in August-October, 20 days before germination, Shinyu nuclear cultivation shoots spread leaves, new shoots germinate about 20 days after grafting. After grafting, it is best to tie it tightly with plastic film, which can reduce water evaporation.

It takes about 4-8 years for chestnut trees to bear fruit.

It takes about 4-8 years for chestnut trees to bear fruit from sowing or grafting. Because chestnut trees bloom late, 2-3-year-old seedlings are often used as rootstocks in production, and grafted before and after leaf development. Fifteen years after planting a chestnut tree can enter the full fruiting period, and the lifespan of a chestnut tree is about 20-35 years.

Chestnut trees only bloom and do not bear fruit as a precaution

1. Skillful fertilization

Chestnut fertilizer demand is different from other fruit trees, adult fruiting trees to increase boron, manganese, calcium and other fertilizers, spring before flowering can be applied to each plant 300-400 grams of urea plus calcium fertilizer 200-300 grams, 6-7 grams of boron fertilizer per square meter, in the fruit expansion period to apply enough strong fruit fertilizer, each plant can be applied ternary compound fertilizer 07-1 kg.

2. Clever pruning

Chestnut likes light, so it is necessary to ensure the ventilation and light transmission of the tree, timely remove the vigorous extension branches and dense weak branches, and do a good job of controlling and wiping the shoots according to the amount of flowers and flower quality in spring to promote the germination of secondary shoots. The secondary shoots generally leave 2-3 branches per branch, and for the branches that are too long or the angle is small, the method of pulling branches and hanging branches can be used to promote the opening of branch corners and the differentiation of flower buds, and balance vegetative growth and reproductive growth.

3. Skillfully protect the fruit

Chestnut is a cross-pollinated fruit tree of the same plant, and more than 2 varieties should be prepared in the orchard to facilitate pollination. After chestnut fruit setting, the fruit should be thinned in time to improve the commodity rate of the fruit, maintain the tree momentum, and maintain the balance of the fruit retention amount of each branch.

4. Skillfully prevent pests and diseases

Common pests and diseases of chestnut include anthracnose, penetrating moth, longhorn beetle, peach borer and scale insects.