1, young tree pruning
The saplings of navel orange trees are 1-3 years old trees. When pruning young trees, shaping and light pruning are the main methods. Because the saplings grow vigorously, we need to shoot them in spring, summer, autumn and late autumn, which will promote the expansion of the young tree crown.
After topping, you need to pick the core. When picking the core, you only need to directly remove the top of the tender shoot of the navel orange tree. In plastic surgery, we also need to use tools such as ropes and bamboo pieces to pull the navel orange tree.
Step 2 Trim the initial results
Navel orange trees need pruning when they enter the initial fruiting stage. In summer, the lateral branches, extended branches and auxiliary branches above the main branches should be cut off. This can promote the growth and development of the main branches. It is necessary to prune vigorous branches in autumn, and the length should be kept at about 10 cm. Only about six fruits can be hung on each branch, and the rest can be pruned.
3. Pruning at full fruit stage
When navel oranges enter the full fruit period, they should prune the branches and fruits. Prune barren branches, too dense branches, and slow-growing branches. You also need to prune the fruit with wormholes.
This can preserve the nutrients of navel orange trees. However, after pruning, it should be noted that 5% carbendazim solution should be applied to the cut of the pruned branches for disinfection to avoid the wound being exposed to the air to breed bacteria.
4. Prune after the results come out
When the navel orange tree bears fruit, we need to prune the tree on a large scale, and we need to prune dead branches, residual branches and branches with pests and diseases. Only about 5 side branches can be kept on the trunk. The nutrition retained in this way can increase the fruiting rate in the coming year.