Chestnut Tree Cultivation Techniques: How to Manage After Harvest?
How to manage chestnut trees after harvest? What are some good chestnut tree management methods? Please introduce them. Chestnut trees are generally harvested in September-October, and management needs to be strengthened according to the physiological characteristics of the chestnut tree to ensure the total yield and quality of the coming year. For detailed methods, refer to the following: 1. Fertilization of chestnut trees...
How to manage chestnut trees after harvest? What are some good chestnut tree management methods? Please introduce them.Chestnut trees are generally harvested in September-October, and management needs to be strengthened according to the physiological characteristics of the chestnut tree to ensure the total yield and quality of the coming year. For detailed methods, refer to the following:
1. Fertilization of chestnut trees:
After harvest, spray a foliar fertilizer or apply fertilizer to the roots as soon as possible to restore tree vigor, enhance leaf photosynthetic capacity, and ensure sufficient nutrients for flower bud differentiation. For foliar fertilizer, 0.3% potassium nitrate, monopotassium phosphate, or urea solution can be used. Spray in the morning and evening, applying evenly to the upper and lower surfaces of the leaves. For root fertilization, generally apply 500-750 grams of urea and 200-300 grams of potash fertilizer per tree. After leaf fall in late autumn, apply additional organic fertilizer. Using the strip trench application, ring trench application, or radial trench application method, apply 1000-2000 kg of organic fertilizer per mu.
2. Pest and disease control for chestnut trees:
After harvesting the fruit, pay attention to cleaning the orchard in time, pruning off dead branches and branches seriously affected by pests and diseases, and removing fallen diseased and pest-damaged branches and leaves from the ground, burning them in a centralized manner or burying them cleanly.
3. Watering of chestnut trees:
Chestnut orchards with a water source should be watered in time; for those relying on natural rainfall, the tree basins should be repaired and trimmed in time to ensure water for the later growth and nutrient accumulation of the chestnut trees, laying a good foundation for next year's production.
4. Loosening the soil in the chestnut orchard:
Carry out timely tillage of the chestnut orchard soil, shallowly burying weeds within the tree canopy projection area, to help loosen the soil and increase soil organic matter. This is generally done in combination with the application of base fertilizer, with a depth of generally 20-30 cm. Note that when tilling, the outer edge of the canopy should be deeper, while around the trunk it should be shallower. When turning the soil, deliberately damage a small portion of the roots so that new roots will grow and the absorption of fertilizer and water will be enhanced. In addition, when turning the soil, combine it with the repair and maintenance of terraces to help the soil retain water and fertilizer.
5. Pruning and shaping of chestnut trees:
The number and strength of the fruiting mother branches on a chestnut tree are important indicators determining the yield of the coming year. The main purpose of pruning is to promote the growth of strong fruiting mother branches in all parts of the chestnut tree, both inside and outside, top and bottom, make full use of space, increase fruiting positions as much as possible, prevent the branches and shoots on the outer part of the canopy from becoming too dense and too tall, and ensure ventilation and light penetration in the inner canopy. All overly dense slender branches and male flower branches should be completely removed, and a small portion of branches should be cut back to cultivate strong renewal branches, laying the foundation for fruiting the following year. Follow the principle that pruning should be done early rather than late, and lightly rather than heavily, pruning off diseased and pest-damaged branches, dead branches, overlapping branches, slender weak branches, and drooping branches. The pruned branches should be taken out of the orchard for separate disposal or burning.
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