1, young tree shaping: the tree shape popularized in chestnut production is mainly happy, and its shaping method is to cut the trunk at a height of 50-60 cm to promote young trees to grow far branches in the shaping zone, from which 2-3 branches with good angles and strong growth are selected as the main branches for cultivation, and the second main branch is selected in the next year, and two branches are left on 1 main branch.

2. The commonly used pruning methods are short cutting, thinning, slow release and coring. Pruning of mature fruiting trees mainly includes the selection, preservation and cultivation of fruiting mother branches and fruiting branch groups, as well as the retraction and renewal of perennial branches.

3. Chestnut trees are suitable to grow at the annual average temperature of 10.5-2 1.8℃, and chestnuts have strong adaptability to humidity, so they can be cultivated when the annual precipitation is 500-2000mm. Chestnut has low requirements on soil, and is suitable for growing on sandy loam with deep soil layer, good drainage and low groundwater level. Soil humus is more conducive to the growth of mycorrhiza, and pH 5-6 is the most suitable. Chestnut is a light-loving tree species, especially during flowering and fruiting, insufficient light is easy to cause physiological fruit drop, such as long-term shading will make the leaves in the inner chamber turn yellow, the branches become thinner, and even die.

4. The key to ensure the survival of transplanted chestnut seedlings is to keep the water balance in the body. Besides keeping the soil moist, we should also protect the roots of seedlings to prevent water loss.