Can chestnuts be harvested now? Can chestnuts be planted without grafting?

Chestnut grafting is generally carried out in spring before the rootstock germinates and sprouts and leaves, and the specific period varies depending on the region and climate. For example, the grafting time in Liaoning can be selected in early May, Hebei in mid-to-late April, Shandong in late March to mid-April, and Jiangxi in late March to mid-April. Although grafting can survive in summer and autumn, it is rarely used in grafting of large trees and young trees.

The grafting period varies depending on the topographic and climatic conditions, and should be based on the phenological period, i.e., grafting or temperature stabilization through when rootstock buds germinate without leaf development10. At this time, the temperature rises, the sap flows, the cambium layer is active, and the survival rate of grafting is high. If the grafting is too early, the temperature is low, the callus forms slowly, and the time is prolonged.

During this time, strong winds, drought or even rain can affect the survival rate. If the grafting period is too late, grafting after the rootstock leaves, the temperature is high at this time, the healing is fast, although the survival rate is high, but the rootstock nutrition has been consumed in large quantities when the leaves are developed, the growth amount after grafting is small, and the growth period is short, often the tree body is weakened, and even dies. Therefore, the best period for chestnut grafting seedlings is the first to mid-April, and the rootstock and scion are full of vitality, the temperature is 10 20, the humidity reaches more than 80%, and the 2 3 days of fine weather are selected for grafting, the survival rate is high, the seedling growth period is strong, the nursery rate is high, and the economic benefits are good.

It's the end of July and the beginning of August!

Generally, chestnut grafting is carried out before the rootstock germinates in spring and sprouts and leaves, and the specific period varies according to the region and climate. Generally, the grafting time is from early May to mid-March, and although the grafting can survive in summer and autumn, the grafting of both large trees and young trees is rarely used at present.

Chestnuts cannot be grafted now, and they are generally grafted before germination in spring, and the survival rate is high.

Chestnut grafting is suitable for early to mid-April in spring, and can also be carried out in September in autumn, when the spring grafting temperature rises and is stable, and the sap begins to flow, the bark is easier to peel, and the survival rate of grafting is high. If grafting is done too early, the wound will not heal easily, and too much water evaporation will affect the survival rate. If the grafting is too late, the rootstock will begin to sprout, consume too much nutrients, and the growth will weaken after grafting.

Yes. Grafting, that is, a type of vegetative reproduction in asexual reproduction. When grafting, the scion should be tightly integrated with the cambium layer of the rootstock to ensure the survival of the scion.

The branch or bud that is grafted up is called scion; The grafted plant body is called a rootstock or table wood. Seedlings with 2 to 4 buds are generally selected for scion, which become the upper or top of the plant body after grafting, and rootstock becomes the root part of the plant body after grafting.

When grafting, the cambium layers of the two wound surfaces are close together and tightly tied together, and as a result, due to cell proliferation, they heal each other and become a whole connected by vascular tissues. This is the principle of grafting.

The chestnut tree is a deciduous tree that produces chestnuts. It is mainly widely planted in Shandong, Hebei, Anhui, Jiangsu, Henan and other provinces in China, and most of them are transplanted with half crowns. Known as chestnuts, peaches, apricots, plums, and jujubes, they are also known as the "five fruits".

Chestnuts can be eaten raw, fried or boiled. Chestnut meat is rich in unsaturated fatty acids, carbohydrates, proteins, minerals, inorganic salts, fats, riboflavin and other components, as well as vitamin C, vitamin carotene, etc.

Chestnut can also be planted without grafting, generally refers to 1 to 3 years old saplings, if it is not grafted after the fourth year, it is the kind of pure wild chestnut tree, this tree will also be chestnut, taste and texture will be good. However, it is not as good as the quality and yield of chestnuts produced after grafting, and there is not much difference in other aspects.

Chestnuts are actually not difficult to grow, and the planting method is as follows:

1.Sowing time: The sowing period is generally in the spring from March to April to April. At this time, the temperature is already warm, and it is the season for chestnut trees to grow, which is suitable for planting, and the chestnut seeds will not freeze.

2.Soil: Most chestnut trees are planted in mountains or sandy soil. Therefore, the need for chestnut trees is sandy soil with good permeability and air permeability. Acidic soils with pH are better, and chestnut trees cannot be planted in alkaline soils.

3.Proper watering: Care must be taken to maintain chestnut trees carefully and water them in a timely manner.

It should be watered in small amounts in autumn and winter. It should also pay attention to drainage, especially during the rainy season, to prevent water accumulation in the roots.

5.Fertilization: Chestnut trees need a lot of nutrients before they grow and mature.

Therefore, we have to apply more fertilizer in the fall. Note that nitrogen and potassium fertilizers are indispensable. Especially after the chestnuts are ripe, the chestnut tree will lose a lot of nutrients, so we must use fertilizers in time to enhance the absorption of the roots of the chestnut tree, so as to quickly restore the nutrients of the chestnut tree.

6.Pruning branches: Generally, chestnut trees must be pruned annually after 5 years of growth. When pruning, be sure to cut off all diseased branches, weak branches, and those that are aging. Do not appear overcrowded branches, overlapping branches and overly dense.

7.Winter frost protection: Chestnut trees are not frost protection at all, so in winter, they may shed their leaves due to cold weather.

At this point, we should keep the chestnut trees warm, loosen the soil on the boards, or place grass to keep them warm. Basal fertilizer should also be applied to keep the basal warm. As a rule, these should be done before frost, otherwise it is easy to freeze the chestnut tree.

It's not hard to plant. First of all, we should choose high-quality varieties, timely watering and fertilization, ensure sufficient light, timely loosening of soil, maintain soil permeability, strengthen the management of water and fertilizer, do a good job of drainage and ventilation, and pay attention to the spacing and density of planting.

It is not particularly difficult, choose the right land for planting, choose the right varieties to plant around April, be sure to pay attention to the light, try to choose a place with more sunlight, you can water, pay attention to fertilization.

The cultivation of chestnuts is relatively simple. All you need to do is fertilize and plough the land, and then put the chestnut seeds directly into the land.

The suitable grafting time is from the sting to the valley rain, scion selection and rootstock pruning. The vegetative branches of the middle and upper sunny spring shoots of the periphery of the robust mother tree with high yield, stable yield and good quality were selected for many years, and the development was required to be full, and all the twigs were cut off from the base.

After grafting, check every 3 5 days, erase the sprouts growing on the rootstock as soon as possible, when the buds germinate, cut off the auxiliary branches from the base, and do a good job in the management of new shoots, when the new slightly grows to about 50 cm, to carry out topping, in order to promote the growth of the secondary slightly, as soon as possible to form a crown.

One month after grafting, when the new branch is 30 cm long, loosen the binding, and then tie it loosely to facilitate the growth of the joint. When the rainy season comes, remove the lashing to prevent mildew at the piercing.

Chestnut tree grafting is generally grafted in spring, and it is more suitable for the next mu from April to June every year. Choose the rootstock with good quality, good growth and high yield, and the scion can choose strong fruiting branches, which require full growth and full side buds, with a length of about 7-8 cm. First, the scion is cut into a wedge, the rootstock is sawn and split from a smooth place, the cuttings are inserted into the split, and the bread is tied.

After grafting, the shade should be removed, and after a month, the outer bandaging plastic strip should be removed, and the topping should be removed.

Chestnuts are grown in the south and do not live in the north.

This is a matter of genetics. Planting economic forest trees, most of them need to plant grafted seedlings, rather than propagating with seeds, this is because fruit trees are cross-pollinated plants, and the seeds produced in the fruit are hybrids, and their genetic traits vary greatly, and the quality of the fruit produced by the offspring cultivated with the seeds in the fruit is very different from the quality of the fruit on the mother tree, and in most cases it is worse. The economic traits of fruit trees propagated by asexual propagation (grafting) generally do not change, and the traits are consistent.

Therefore, the propagation of fruit trees is mostly vegetative rather than sexual propagation (seed seeding), and the same is true for chestnut.

If it is planted in patches, it is recommended to graft suitable new varieties uniformly, otherwise the size is different and it will not be sold at a good price.

The grafting method is as follows:

The time of grafting is generally when the sap begins to flow in spring and has not yet germinated, and there are many methods, among which the splitting method is a method that is more widely used in production, and the specific steps:

When grafting, the rootstock is first cut from the smooth part of the base 5 10 cm, the section should be smooth, and then split vertically in the center of the section, 3 4 cm deep

The scion selects the branch segments with 2 3 full buds, and cuts a wedge-shaped double bevel with a length of 3 4 cm on the left and right sides of the lower bud, so that one side with buds is slightly thicker and the other side is slightly thinner.

Then insert the slightly thicker side of the scion into the rootstock splitting mouth outward, so that the rootstock is aligned with the cambium layer of the scion, and the upper part of the scion cutting surface should be higher than the rootstock incision cm, which is called "exposed white", which is conducive to healing, and then tied tightly with plastic strips.

In arid areas, in order to prevent the scion from losing water and drying and affecting its survival, the upper end of the scion can be sealed with wax or paint, or it can be tied and buried in the soil.

Chestnut trees are mainly grafted about a week before budding in the spring (late March). It is recommended to use single-bud seppuku grafting.