Management technology of chestnut tree

Chestnut trees are quite common in the countryside on our side. Many ruthless people will plant one at home. When it comes to the receiving season, we will see many people eating chestnuts on the trees with long poles, which are happier than those bought outside. So how can we plant a chestnut tree?

Management technology of chestnut tree

1. After the chestnut tree is harvested, foliar fertilizer should be sprayed in time. The aim is to increase the vitality of the leaf so that it continues to photosynthesis and absorb carbides. Prepare for the flowering and fruiting of the hair leaves in the coming year. Foliar fertilizer is generally 0.4% urea and 0.3% potassium dihydrogen phosphate required to be evenly applied on the leaf surface and back and suitable for application in the morning and evening.

2. Clean up the chestnut garden in time. First shoot down the empty buds and pest bracts on the branches with bamboo poles and then pile them up with weeds in overwintering places to reduce pests and decompose them for fertilizer.

3. When the leaves of chestnut trees are lighted, the whole garden will be deeply turned over to improve the soil. In general, the depth of combined application of base fertilizer should be shallow around the trunk when the crown is 20mm and 30cm. When turning the soil, purposefully damage a small part of the root system in order to produce new roots and enhance the absorption of fertilizer and water, which is called underground renewal. Ploughing the garden can loosen the soil and reduce the overwintering sites of pests. Attention should be paid to the renovation and maintenance of the land terrace when turning the soil in order to conserve the water and fertilizer of the land.

4. Apply basic fertilizer. This is an important measure in the comprehensive management of chestnut orchard and an effective way to ensure the development and growth of chestnut trees and obtain high yield. The application effect of farm manure is good. After the farm manure is applied into the soil, it needs to be decomposed before it can be absorbed by the root system, so the base fertilizer must be applied early to give full play to the fertilizer effect. It is generally better to apply it after falling leaves at the end of autumn. Some green manure and weeds can also be fattened in the rainy season. The method of base fertilizer application is generally strip ditch application, ring ditch application, radiation ditch application and so on. After digging the ditch, apply the fertilizer into the ditch and cover the soil to maintain the fertilizer efficiency.

Pest control method of chestnut tree

1. Chinese chestnut red spider. Use 1000 times of 40% dimethoate EC. 1500-fold solution of acaroid mite EC. 5% Laifulin EC 1500 times. Or use 1500 times of 40% omethopril EC. The number of worms is 2000 times that of EC. 20% to scavenge EC 3000 times liquid. It can be controlled by spraying twice during the occurrence period, once in early May and once in late June.

2. The inchworm is lifted by wood. The wooden inchworm overwinters with pupae in weeds and soil blocks under the tree. if the climate is dry, the mortality rate of pupae is more than 80%. According to this characteristic, weeds and stones under trees, withered branches and leaves are removed every year, so that the overwintering pupae are exposed to the ground and improve the natural mortality rate. this artificial control measure can control the occurrence of insects but does no harm for many years.

3. Li Tuoyu. Artificial scraping off the old warped skin, so that the new tissue is hard, the larvae are not easy to inject. At the same time, in the process of skin scraping, a large number of larvae can be eliminated and the damage can be better controlled.

4. Chestnut red spot disease. Timely harvest, strictly prevent air drying, ensure normal temperature and humidity during storage, the temperature is generally below 10 ℃, at the same time, in order to reduce mildew and rot should be timely threshing and sales. By grasping the above links, the disease can be controlled.

Pruning and shaping of chestnut trees

The main purpose of chestnut pruning is to promote the inside and outside, upper and lower parts of the chestnut tree to produce strong fruiting mother branches, make full use of the space, increase the fruiting parts as much as possible, prevent the branches outside the crown from being too dense and high, and ensure ventilation and light in the inner chamber. All the slender branches and male flower branches that are too dense should be removed, a small part of the branches should be truncated, and strong regeneration branches should be cultivated so as to lay a foundation for the next year. In accordance with the principle of pruning early rather than late, light rather than heavy, cut off disease and insect branches, withered branches, overlapping branches, thin and weak branches and drooping branches, and the cut branches should be taken out of the orchard for treatment or burning.

The harvesting method of Chinese Chestnut

1. The method of picking up chestnuts is to wait for the chestnuts to become fully hot, and to pick up chestnuts manually after they fall to the ground naturally. In order to facilitate the collection of chestnuts, weeds should be removed from the ground before the chestnut bud attacks. When harvesting, first vibrate the tree, and then pick up all the fallen chestnut and chestnut buds. Be sure to pick it up every morning and evening and store it as you pick it up. The advantage of chestnut picking method is that chestnut is full and full, high yield, good quality and strong storage resistance.

2. The method of beating chestnuts is to gently knock down the mature chestnut buds with bamboo poles in scattered batches, and then pick up the chestnut buds and chestnuts. Using this method of harvest, generally 2-3 days hit. When beating the bud, beat the twigs inward from the outside of the crown to shake off the chestnut bud, so as not to damage the branches and leaves. It is strictly forbidden to lay down all chestnut buds with different maturity at one time. The harvested chestnut bud should be treated with "perspiration" as soon as possible. If it is not handled in time, the chestnut is easy to mildew. The treatment method is to choose a cool and ventilated place, spread the chestnut bud thinly, with a thickness of 20-30 cm, splash water and turn it over every day, cool "sweating" treatment for 2-3 days, and then carry out manual threshing.

When planting Chinese chestnut, you must apply fertilizer at the right time, so as to ensure the growth of Chinese chestnut and technical prevention of insect pests, otherwise you will not see any results after working so hard for so long. People now make Chinese chestnut into many different and delicious foods, so growing Chinese chestnut is also a good way to generate income.