How to determine the winter cutting time of kiwifruit

Kiwifruit cultivation is very common in China, and now with the gradual decrease of temperature, it has entered into winter. After winter, the winter shearing of kiwifruit is very important. The success of winter cutting will gradually affect the yield of kiwifruit in the coming year, so we need to pay attention to it. So how to determine the winter cutting time of kiwifruit? The following editor will give you a brief introduction, let's have a look!

1. Winter cutting time

When pruning kiwifruit in winter, we should first pay attention to the timing. It should start about half a month after the fallen leaves of kiwifruit trees, usually starting in mid-December and ending before the Beginning of Spring the following year. Among them, it is best to do it about three weeks before and after the Winter Solstice. Time is very important, not too early and too late. If the pruning time is too early, all the nutrients in the branches have not been returned to the roots, resulting in excessive waste of nutrients. If the pruning is too late, there will be serious bleeding when the branches germinate in the second year, which will hinder the sprouting of the tree branches.

2. Trim object

When we cut in winter, we should adjust the pruning method reasonably according to the variety, tree age, tree potential, planting environment, planting technology and so on. We should not prune blindly. The main object is still the fruit mother branch of kiwifruit tree, thinning all the weak branches, pest branches, overlapping branches and so on. For some useless overgrown branches, do not be reluctant to give up, should be cut off in time. After pruning, an appropriate amount of preservative film should be applied to the wounds of kiwifruit branches to improve the speed of wound healing and avoid bacterial infection.

3. Pruning position

When pruning, we should control the pruning length according to the growth of the branches. If the growth is strong, then about 10 buds can be retained, otherwise, the number of buds retained in branches should be reduced. If it is a multi-main vine frame shape, then it is necessary to leave fewer branches when cutting in winter. For the retention of the fruiting mother branch, the mediocre branch should be properly retained to fill the void when the space is sufficient, and the full buds should be retained in the cut mouth. When pruning long branches, it is necessary to keep about 3 buds for short cutting, and if there are new branches, they can be cultivated to grow vine backbone branches.

4. Winter shearing

The main purpose of winter cutting kiwifruit trees is to enable kiwifruit trees to form a skeleton according to their ideal shape. The branches and vines of all levels of kiwifruit trees are reasonably distributed on the support. Adjust the growth contradiction between growing branches and fruiting branches. And the retention quantity and proportion of fruiting branches and developing branches should be controlled. Cut off the old, weak and withered branches, diseased branches and other worthless branches to improve the fruiting years and fruiting efficiency of kiwifruit trees.

The above is a brief introduction to how to determine the winter cutting time of kiwifruit. That's all for today's introduction. This article is for reference only. I hope it can help you all.