Walnut tree has wide adaptability to soil, but it is suitable for planting on deep, loose, fertile and moist sandy loam. They like warm and humid environment and are not tolerant of waterlogging. They generally grow on hillsides and hilly areas 400- 1800 meters away. The flowering period is May and the fruiting period is 65438+ 10.

Pruning time of walnut tree

1. Walnut trees can be pruned in spring and March, mainly after the peach trees germinate. At this time, the temperature rises, and after the trees germinate, the nutrients stored in the roots are continuously transported upwards to store more nutrients. Pruning is less harmful at this time. Walnut trees can also be pruned in summer from late May to the end of June. At this time, it can be harvested in combination with scions, and walnuts can be harvested from early October of 65438+/kloc-0 to early October of165438+/kloc-0. Pruning is not allowed. At this time, it is in the period of nutrient reflux, and more nutrients will be lost. Moreover, the wound is easy to dehydrate, not suitable for healing and easy to be infected. 3. The best pruning time of walnut trees is from freezing to germination, which is about 65438+February. At this time, some trees stop growing in winter, and pruning damage is minimal.

Pruning method of walnut tree

Walnut trees grow vigorously and bear many fruits, so they need thinning and pruning to increase the ventilation and light transmission of the plants. Pruning should follow the principle of weakening and retaining strength, thinning dense branches in time, cutting off pests and diseases, old dead branches, dense branches and cross branches, reducing nutrient loss, and pruning residual flowers in time after flowering.

Matters needing attention in pruning walnut trees

Walnut trees can be pruned in winter, combined with winter and spring, less pruned in summer, not pruned in autumn, and pruned at any time when pests and diseases are found.