Fast frame-climbing method of shed frame pear tree boughs

Abstract

The invention provides a fast frame-climbing method of shed frame pear tree boughs. The frame-climbing method is carried out on a shed frame of a three-line one plane or two-line one plane mode, and frame climbing is carried out by three steps of strengthening, pulling in an inclined mode, and pulling in a level mode. The first step of strengthening is that young shoots are guided onto an elevation guide line in a vertical mode during a growing season so that the young shoots can keep a vertical growing state. The second step of pulling in an inclined mode is that base parts of the shoots growing vertically are pulled in a level mode and fixed behind the shed frame face during autumn of the same year, and then are guided onto the elevation guide line according to a 45-degree angle, namely, the base parts of the shoots are firstly pulled in a level mode and fixed and then pulled in an inclined mode. The third step of pulling in a level mode is that the shoots are pulled in a level mode and fixed on the shed frame face during autumn of the next year. The fast frame-climbing method has the advantages of being fast in frame-climbing, few in water shoots, small in trimming quantity, large in frame face fruit area, high in output and the like.

Description

technical field [0001] The invention belongs to the fields of fruit tree cultivation and fruit tree ecology, and in particular relates to a pear tree scaffold shaping and pruning method. Background technique [0002] The pear trellis cultivation model originated in Japan and was introduced into my country in the 1990s. It has been cultivated in 12 provinces (cities) including Jiangsu, Shandong, Zhejiang, Hubei, Sichuan, Henan, Shanghai, Beijing, Chongqing, Hebei, and Liaoning. Area up to 13333hm 2 , and showed a trend of increasing year by year. Practice has proved that the trellis tree shape not only has the advantage of wind resistance, but more importantly, it has incomparable advantages in improving the fruit quality, especially the uniformity of the fruit. , An important way of labor-saving cultivation. Since the fruits of the trellis cultivation method are evenly distributed on the flat shed, the flat shed surface is the carrier of the pear fruit and the platform for...

AI Technical Summary

Problems solved by technology

The "two-step" racking method allows the main branch to be flattened and put on the rack prematurely. Because "the top of the pear tree has a strong advantage", it makes it difficult to control the elongated branches, and the upright branches on the back are "standing in forests". The main branch on the surface expands slowly, "the tree frame is separated", and the shelf is "early but not fast", resulting in late fruiting and low yield of the tree

The biggest disadvantage of the "two-step" method of putting main branches on the shelf is that there are many elongated branches. Even in Japan, the country of origin of the scaffolding cultivation technology, the control of the branches on the back of the scaffolding pear tree is the biggest difficulty in cultivation. , consume a lot of tree nutrients, and also waste a lot of pruning labor

[0004] On the other hand, the "two-step" racking method adopts medium and short cuts to the extension branches of the main branches, resulting in many rear branches and insufficient extension of the extension branches forward, and the base of the main branches is thickened and hardened, making it difficult to put on the shelves. Artificially increased the difficulty of pulling branches on the shelves

In addition, Japan adopts hanging wire scaffolding, and the cable-stayed hanging wires can properly lure the extended branches of the main branch, while the pear tree scaffolding adopted in my country is a flat scaffolding, with no support points on the scaffolding, and the lure belts for the branches after being put on the shelf. great difficulty

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