1, scraping and whitening. In order to make chestnut trees better control pests, the starting time is usually after harvest, so pay attention to the temperature. For areas with low temperatures, it should be postponed until early spring. Rough skin and warped skin of fruit trees are the main places where pests and diseases bacteria overwinter. Timely scraping can destroy the bacteria overwinter and reduce the incidence of fruit trees. Then paint the lower part of the trunk white to prevent termites or bacteria from invading.

2, plastic trimming. The pruning of chestnut trees is very beneficial to the results in the coming year. For 5-year-old trees, the sprouting branches and waste branches at the base of the fruit tree should be cut off. Then, dry, dead and insect-infested branches should be removed, and overlapping branches should be removed in time if they are too dense and too long. Prevent the fruit trees from being too closed and affecting the flowering and fruiting of chestnuts. Cultivating new main branches can promote the recovery of chestnut and increase its yield.

3. Rational fertilization. Generally speaking, chestnut fertilizer is mainly organic fertilizer, and it is not necessary to use chemical fertilizer. Because chemical fertilizer will burn roots and affect the growth of chestnut trees. When applying fertilizer, apply fertilizer along the crown and dig out the fertilizer ditch. Farming should be done immediately after fertilization to improve soil fertility, which is beneficial to root nutrient absorption and improve chestnut growth rate and seed setting rate.

4. Anti-freezing management. Measures should be taken to prevent chestnut from freezing in winter. First, cover the loose soil with plastic film, then apply sufficient fertilizer and water properly in time to improve the cold resistance of chestnut and ensure the smooth overwintering of chestnut.

5. Cultivated land. Chestnut orchard should be cultivated properly to improve the air permeability of soil. It is beneficial to the growth of chestnut, and the young orchard is mainly shallow tillage. Results Orchard should be deepened and expanded, original soil should be increased, soil should be improved, and root growth should be promoted. In the process of deep ploughing, it is necessary to carry out comprehensive cleaning work to ensure that water and soil facilities are in good condition.