Why can't peach trees be replanted? Peach trees can't be planted any more. Like other apples, pears and persimmon trees, continuous cropping not only reduces production, but also has serious diseases and obvious economic benefits. The correct farming method should be farming in new farmland, which will achieve high efficiency.
If it is really limited to some land and peach trees continue to be cultivated, then we should apply more farm manure, throw away the original roots, spray formalin and other drugs for disinfection, and it is best to stagger the original acupoints to plant new peach trees, and various schemes will also have good results.
What should I pay attention to when raising peach trees? 1. Choose peach trees for the environment. Peach trees are suitable for areas where the average temperature is about 15 degrees, and the minimum temperature cannot be lower than MINUS 23 degrees. It is best to plant sandy loam, avoid saline-alkali land, the soil can be slightly acidic, and avoid continuous cropping. Choose a place with a good environment and stay away from pollution sources.
2. Selection and planting method of young peach trees: 3-4 young peach trees with lateral roots exceeding 15 cm, trunk diameter exceeding 8 mm, good tree shape, full buds and no other diseases such as root cancer should be selected. Peach trees are best planted in spring after soil thawing and before germination, and the spacing between plants is generally 3 meters to 4 meters or 5 meters. Before planting peach trees, soil preparation and fertilization should be carried out, and 80 cm square tree pits should be dug. After the rotten farmyard manure is mixed with soil, it should be filled in and watered for precipitation. When planting saplings, the joints should face the windward direction.
3. Management of water, fertilizer and soil Basic fertilizer can be applied every autumn, and farmyard manure can be selected with a small amount of chemical fertilizer. Topdressing can be added three times a year, at the germination stage, fruit expansion stage and after fruit picking. When applying base fertilizer to peach trees in autumn, you can enlarge tree holes and dig deep to improve the soil. Watering peach trees with pollution-free water. The key points of watering are: water peach trees in time in dry season before germination, during fruit expansion and before freezing, and do a good job of drainage in rainy season.
4. There are three main branches and two main branches in peach tree shaping and pruning. In the infancy of peach trees, when the trees grow vigorously, we can attach importance to summer pruning, and pruning is mainly based on plastic crown expansion. Pruning peach trees in full fruit period, balancing tree potential in the early stage, cultivating all kinds of fruiting branches, dredging crown density and enhancing ventilation and light transmission effect.
5. Pest control The main diseases of peach trees are gummosis, brown rot, anthracnose and peach leaf shrinkage. Pests include peach moth, peach aphid, scale insect and so on. The combination of biology and medicine can be used for prevention and treatment.
How do peach trees pollinate? First, the optimum temperature for peach blossom powder to germinate is 20℃-25℃, and when the temperature is lower than 4.4℃, the pollen will stop germinating. When the temperature is between 4.4℃ and 10℃, the elongation of pollen tubes is inhibited. Leng Bo will definitely affect the fruit setting rate of peach pollination.
Secondly, although the pollen germination rate of 15℃ is low, the pollination effect is the best within 3 days after flowering, and the pollination rate begins to decline with time. Pollination is no longer effective after the style fades.
Finally, peach trees are in full bloom, so it is suggested that fruit farmers should carry out artificial pollination when the temperature rises or when the temperature rises above 12℃ at noon. Fruit farmers can choose the best pollination time according to the flowering degree of peach trees and local temperature.