1. How to plant walnut trees
1. Soil: For the good growth and development of walnut trees, suitable soil is essential. The fertility of the soil will directly affect the growth and development of walnut trees. to the growth rate and fruiting rate of fruit trees. Properly cultivate and cultivate the soil, increase the moisture content in the soil, enhance the permeability of the soil, improve the fertility of the soil, promote the growth of walnut trees, and improve the yield and quality.
2. Pruning: Reasonable pruning is a key factor in making walnut trees high-yielding. If pruned after the leaves fall or during the budding period, it will not be conducive to wound healing, making the tree prone to diseases and insect pests. Try to place the pruning time after harvesting. Pruning the tree at this time can effectively adjust the structure of the tree. Although it will have a certain impact on the accumulation of nutrients, it is not a big problem.
3. Fertilization: The growth of walnuts has a large demand for nutrients. When cultivating the soil, apply base fertilizer, and fully mix the base fertilizer with the soil to enhance the fertility of the soil. In the later stage, appropriate top dressing will be carried out according to the growth of the tree, weather changes and the level of nutrients in the soil. When fertilizing, do not pour fertilizer directly into the pit. Be careful to mix it evenly with the soil, as it may burn the tree roots.
4. Watering: Watering is a must. After planting, root water needs to be poured once. Water should also be replenished after each fertilization and top dressing to promote the absorption of fertilizer nutrients by the tree roots. Walnuts are a water-loving crop. It is necessary to ensure the water required during the growth of walnuts. When encountering continuous drought weather, water must be replenished in time to prevent walnuts from experiencing water shortage, which will have adverse effects on growth and development.
2. Management of walnut trees
1. Diseases and insect pests: Walnut trees are highly disease-resistant and do not suffer as many pests and diseases as other crops, but they can sometimes be caused by improper management. Pests and diseases. Failure to deal with pests and diseases in time can lead to stunted growth and development or death. Spray pesticides regularly for prevention, inspect the orchards, determine the disease based on the incidence and then treat it symptomatically, and do a good job of disinfecting and cleaning the orchards after harvest.
2. Overwintering: Walnuts like moisture and tolerate waterlogging but are not cold-tolerant. After harvesting, they need to do a good job in overwintering to prevent frost damage. Before winter, the lower part of the tree body should be painted white and dry. A function of insulation. In the event of heavy snow and snow, promptly clear the snow around the tree. Cover with plastic film to increase surface temperature and prevent frost damage.
Extended information:
Methods for disease prevention and control of walnut trees
1. Choose a good garden site, avoid continuous cropping of diseased gardens, and choose a site with good drainage and low groundwater level. For local nurseries, use high seedbeds in rainy areas;
2. Replace the soil with air or sand. The soil can be replaced once a year, and usually 1 to 2 times will be effective;
3. Seed disinfection and soil treatment. Use 50% carbendazim powder 0.3% to dress the seeds before sowing. Add lime or plant ash appropriately to acidic soil to neutralize the acidity, which can reduce the incidence. In addition, use 1% copper sulfate or 500% thiophanate methyl. Irrigating the roots of the diseased trees with ~1000 times the solution, spreading slaked lime into the base of the seedling neck, or irrigating the soil with 1000 times the solution of Dysen ammonia agent, all have a certain inhibitory effect on the disease.
Reference: Baidu Encyclopedia-Walnut Tree