In order to produce high yields of chestnuts year after year, it is necessary to break the practice of planting chestnuts only to pick up, especially for chestnut trees in the full fruit period, and to manage after harvest; otherwise it will affect the yield and quality of chestnuts in the following year. Here is an introduction to the management techniques of winter chestnut.
Fertilize. Generally, organic fertilizer is the main method, with a small amount of chemical fertilizer. Fertilization is combined with the use of roots and roots are irrigated and irrigated to cultivate the soil to facilitate root absorption and quickly restore tree vigor.
Scrape. Trees over 10 years old can be scraped. The time for scraping should be after picking the fruit. For cold areas, it is generally better to scrape in early spring. The coarse bark and peeling bark on the trunk and branches of fruit trees are places for pests to overwinter. When scraping the bark, cover the underside of the tree trunk with plastic, scrape off the rough bark, old bark, and warped bark with a sharp knife, and take them outside the garden and burn them together. After scraping the bark, brush the trunk and big branches in time with the tree protector and whitening agent to prevent pests or bacteria from infecting the trunk.
prune. After pruning and shaping the 5-6 year old chestnut tree, only the sprouting branches and lower branches at the base should be cut off, and all the dry branches, dead branches, and diseased branches should be cut off. When there are crowded overlapping branches and dense branches in adult and elderly trees, the overlapping branches and dense branches in the inner chamber should be properly removed to promote good ventilation and light transmission in the crown, and three-dimensional results. For senescent chestnut trees, it is necessary to saw off the senescent branches and re-cultivation of the main branches. The long branches can also be used to replace the main branches to form a new crown to restore the tree vigor and form a strong fruit tree. The wounds caused by pruning should be coated with a callus antiseptic film in time to protect the wound healing tissue from growing and preventing bacteria from invading the wound.
Antifreeze. Most chestnut trees shed their leaves in winter, especially in cold areas, where chestnut trees are prone to freezing damage, which is very detrimental to the winter. Before chestnut leaves fall or fall frost, the tree tray should be loosened and soiled and sprayed to protect the tree to keep warm, and water should be filled in time to improve the cold resistance of the tree and make it safe to survive the winter.
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