Shed frame pear bearing branch group renewal method

Abstract

The invention provides a shed frame pear bearing branch group renewal method. The method is characterized in that a base of a bearing branch group to be renewed and a position 2-3cm away from a branching point of the bearing branch group to be renewed are incised to present a triangle, the depth of the triangle is 1 / 3-1 / 2 of the diameter of the bearing branch group to be renewed, the incised bearing branch group is capable of normally bearing for 1-2 years, and branches sprouted by latent buds incised from the base of a bearing branch group serve as renewal branches for cultivating a new bearing branch group. By the aid of practical application, fine effects are generated, frame surface utilization rate is increased by 15.8%, and yield is improved by 13.7% per 667m<2>.

Description

technical field [0001] The invention belongs to the fields of fruit tree cultivation and fruit tree ecology, and in particular relates to a method for updating fruiting branches of pear trees on a scaffold. Background technique [0002] The scaffolding tree shape is a related cultivation technology introduced from Japan in the 1990s. At present, the cultivation of scaffolding pears has been carried out in Jiangsu, Shandong, Zhejiang, Hubei, Sichuan, Henan, Shanghai, Beijing, Chongqing and other provinces and cities. expand. Practice has proved that the scaffold-shaped tree shape not only has the advantage of wind resistance, but also can improve fruit quality, especially in terms of improving the uniformity of fruits. An important way of standardized cultivation. [0003] The fruiting branch group of the scaffolding pear tree is composed of vegetative branches and fruiting branches. The basic unit of the result is directly related to the utilization rate of the flat scaff...

AI Technical Summary

Problems solved by technology

The main defects of this approach: First, the renewal point of the fruiting branch group is not fixed, and a special cultivation site must be reserved on the backbone branches such as the main branch or the sub-main branch for the cultivation of the newer branch. It takes 1-2 years from cultivation to the formation of new fruiting branch groups. During this period, there is no yield in the shelf surface space for cultivating new fruiting branch groups, thereby reducing the fruiting parts of the scaffolding surface and reducing the utilization of the flat scaffolding surface. In addition, because the fruiting position is not fixed, the high and stable yield of scaffolding pear trees is often affected due to the untimely occurrence of "green and yellow failure" in the alternation of fruiting branches.

The second is that sometimes no suitable renewing branches appear or can not be cultivated, resulting in a lack of new fruiting branches. In this case, fruit growers often extend the service life of the fruiting branches, causing the fruiting branches to grow too thickly, forming "quasi-big branches" ", forming nutrient competition for the backbone branches such as the main branch or the sub-main branch, and the phenomenon that the fruiting branch group and the backbone branch "do not distinguish between master and slave" and disturb the tree shape

The third is that the "transposition" of fruiting branch groups is alternately updated, the cultivation technology is more flexible, and the experience is strong, which is not easy to be mastered by the fruit growers, which is not conducive to the standardized production of scaffolding pears.

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