Chestnut winter tube don't ignore
Chestnut is a tree species with high economic value. The development of chestnut production in hilly and mountainous areas is not only to compete with crops, but also to make full use of land resources, which is of great significance for maintaining water and soil, prospering mountainous area economy, and improving ecological environment. However, in the development of chestnut production, efforts must be made to change the cultivation conditions of the past, and especially to strengthen the winter management of chestnut. The key to the management of chestnut trees in the winter is to improve soil fertility, followed by plastic trimming, disease prevention and pest control. Change the soil and fertilize. In the winter, the chestnut orchard should be cultivated in order to improve the soil, prevent freezing, prevent insects and prevent disease. The trees are properly deep-turned and the small trees are turned slightly, but the roots should not be damaged. Combine loose soil with winter fertilizer. Winter fertilizer is dominated by phosphorus and potassium fertilizers and dry manure. For a tree that is not a garden, apply 5 kg of phosphate fertilizer, 2 kg of potassium fertilizer and 100 g of boron fertilizer, and apply dry 20 kg of manure. The application requires no access to the roots; the size of the chestnut tree in the garden, and 50 kg of phosphate fertilizer are applied to the garden. 25 kg of potash and 1.5 kg of boron fertilizer plus 300 kg of dry manure require uniform fertilization. In the spring of the following year, a portion of green manure was planted to increase soil fertility. Plastic trim. Chestnut tree pruning is best from December to February of the following year. For saplings or trees that were grafted that year, when the shoots grow to a height of 60-80 cm, the upper tip of the main tip is cut off and the new long lateral branches are promoted. The adult tree is trimmed to cultivate a light-transmitting tree structure. If the tree is weak and the result is weak, it should be sparsely left. Only the top 1-2 fruit branches will be retained and the nutrients will be used centrally. If the tree potential is strong, the fruit trees will be strong, and only weak branches, cross branches and dense crowded branches will be eliminated. Insects and branches, overlapping branches, etc., keep all fruit branches that are robust and cultivate, so that both the litchi and peripheral branches in the canopy can achieve results, ensuring the high yield of chestnuts in the coming year.