Introduction of pruning time and technical points of kiwifruit trees

Kiwifruit is a fruit often eaten in daily life, which requires a high planting environment. Generally, it is necessary to choose mountain areas with convenient transportation, sufficient light, relying on water sources, moderate rainfall and slightly higher humidity. Among them, pruning this step is indispensable, let's take a look at the pruning time and technical points of kiwifruit trees.

1. Pruning time of kiwifruit trees

Kiwifruit is growing vigorously and must be pruned in winter and summer in order to maintain a balanced growth and fruit.

1. The "bleeding" phenomenon of pruning kiwifruit in winter is more serious than that of grapes, so we should pay attention to the pruning period. It is generally appropriate to prune from the beginning of winter to the end of January of the following year. Pruning from February to March is easy to cause bleeding. When the bleeding is serious, the germination of buds will be affected, and serious branches will die.

2. The time of summer pruning is from early summer to July to August. The main contents of summer pruning are: dealing with long branches and drooping branches, removing over-dense branches and heart-picking to promote strength.

In spring, the branches of kiwifruit grow very fast, sometimes they can stretch more than 10 centimeters within one day, and when they stop growing, the length can reach more than 3 meters. In order to avoid wind break, should be tied up at any time, and pay attention to remove twigs as thin as grape tendrils.

2. Key points of pruning techniques for kiwifruit trees

1. Kiwifruit tree finishing

For young trees, the amount of pruning is less, mainly in accordance with their own desired frame shape development, with branches priority to cover the shelf surface, expand the crown as the pruning principle. But not all the branches are preserved, and it is recommended to cut off the branches of diseases and insect pests and thin branches. For adult trees, we must maintain the backbone structure of the tree body, to ensure the ability to bear fruit, but also have a strong tree potential. The main task of winter shearing is to select fruiting branches to ensure the quantity and quality of retained buds and to make them evenly distributed on the shelf surface.

2. Kiwifruit pruning details

In fact, the details mentioned by the manager are some branches that need to be removed, including overgrowing branches, pests and diseases, thin and weak branches, shaded branches growing in the lower layer, and some branches that grow out of shelves. Some of these branches should be completely cut off and some should be truncated as needed.

3. Reasonable sprouting

There are 1.5-2 fruiting mother branches and 30-35 fruiting buds per square meter, and the number of buds per fruiting mother branch is 15-25, or the fruiting mother branches are cut to the average length of row spacing. Keeping buds reasonably can ensure the quality of flower buds in the coming year and reduce unnecessary waste of nutrition.

4. binding of branches and vines

After pruning, the branches are tied up. The binding of branches and vines will directly affect the growth of plants. In the areas prone to freezing injury, the binding time can be set around the beginning of February. It is difficult to distribute the branches evenly by pruning alone, and as they grow, they may grow in all directions. The principle of binding is to make the branches evenly distributed from the inside to the outside as far as possible, the branches on the same wire should be evenly distributed, and the branches on different wires should be interspersed and distributed. When bundling, avoid excessive intersection and overlap, avoid pulling branches, 1-2 lines per branch.