Key points of fertilization and management for peach trees in autumn

Peach tree is a kind of deciduous small tree with both edible value and ornamental value. Its fruit has a lot of juice and rich in certain nutrients. Peach blossoms are very popular because of their beautiful shape and bright colors. Peach trees are planted all over the country, and there are many varieties. Let's take a look at the introduction of autumn fertilization and management of peach trees.

1. Key points of fertilization for peach trees in autumn

1. Grasp the time of fertilization.

It is generally appropriate for peach trees to apply base fertilizer in autumn in the first and middle of September, when the soil temperature is higher, the root regeneration ability is strong, and the root cutting recovers quickly.

2. Fertilization should be shallow.

The root system of peach tree is mainly distributed in 20-40 cm soil layer, and the suitable depth of fertilizer application ditch or hole is 30-40 cm. The scope of fertilizer application should be wide. The aerobic capacity of peach roots is stronger than that of apple and other fruit trees, so we should appropriately increase the fertilization area, expand the absorption area of roots, improve the growth environment of roots and improve the absorption function of roots. Nutrients should be complete. Peach base fertilizer should be based on barnyard manure, cake fertilizer and other organic fertilizer, in addition to organic fertilizer, should be combined with inorganic fertilizer, fertilization must be combined with the use of photosynthetic nutrient film fertilizer, can help plants absorb a large amount of light fertilizer, light energy, light, compatible with conventional fertilizers, nutrients for plant growth and development to the limit. It can help plants absorb a lot of light fertilizer, light energy, light, compatible conventional fertilizers and nutrients to the limit of plant growth and development. Basic fertilizer should be sufficient. Peach trees have higher fruit setting rate and higher requirements for soil nutrients. In general, the amount of fertilizer applied to the trees in the early fruiting stage and the full fruiting stage should be increased, and should be used together with the new high-fat membrane to improve the fertilizer efficiency and prevent bacterial infection.

II. Key points of Peach Tree Management in Autumn

1. Restore the tree potential

After fruit picking, peach trees are easy to weaken. In order to supplement the organic nutrients consumed due to fruit growth and development, peach trees should be fertilized in time. Each peach tree with high yield applies compound fertilizer of half a jin, which can be combined with rain or irrigation to promote nutrient absorption and leaf photosynthesis, and accumulate nutrients for the tree. Fertilization time should be carried out within 10 days after harvest. Young trees or strong trees may not be fertilized. Foliar fertilization was carried out after fruit picking combined with spraying, which was generally sprayed with 0.3% potassium dihydrogen phosphate to promote branch ripening and flower bud differentiation.

2. Pruning and pruning to improve the ventilation and light transmission of the tree.

After the fruit is harvested, the tree needs to be pruned, mainly to remove dense branches, strong branches, overgrown branches, erect branches, disease and insect branches and disordered perennial branches in the crown, and retract the weak branches. The length of retained branches after retraction should be determined according to the overall layout of the tree and the degree of weakness. generally, the length of retained branches should be 20 cm to 30 cm, adjust the branch layout and the amount of branches and leaves, improve the ventilation and light transmission conditions, and arrange the large, medium and small fruiting branch groups in order to avoid the baldness of the inner chamber and move up the branch group. On the one hand, it can increase the inner chamber light and promote the formation of flower buds, on the other hand, it can also reduce the incidence of diseases and insect pests to achieve the purpose of strong trees and stable situation. In addition, it can enrich the branch tissue by coring the overgrown branches which have not stopped growing and controlling before and after.

3. Dig deep into the soil and expand holes to improve the soil.

Combined with the application of base fertilizer in autumn, the soil can be deeply ploughed and improved, which is beneficial to root emergence. Root cutting after deep ploughing can promote a large number of new roots, promote root renewal and improve root activity. The time of turning the garden can be carried out from late September to mid-October, which can be combined with the application of base fertilizer in autumn. The method of deep turning is mainly operated manually, and the suitable depth is 35cm to 40cm. Deep turning can be carried out in the whole garden or in part, or a combination of both. For the adult orchards that have not been deeply ploughed for many years, the whole orchard should be ploughed deeply, and the orchards that are deeply ploughed every year or every other year can use partial deep ploughing. Deep turning encountered the main root and thick lateral root can be cut off at the periphery of the crown, cut off the root, the thicker root should be cut off after cutting, in order to promote a large number of root outgrowth.