Downward-arrowhead-shaped tree shape of pear tree and shaping method for same
A pear tree and tree shape technology, which is applied in the field of pear tree shape and its shaping, can solve the problems of uneven fruit quality, inconvenient field management, and large fruit size, and achieve the improvement of soluble solids and light conditions. The effect of improving and increasing the colonization density
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Embodiment 1
[0039] The pear tree of the present invention is divided into three years and finishes in " individual " novel tree form.
[0040] 1. Plastic surgery in the first year: After the seedlings are planted, select full buds to set the stem, and the height of the stem is 70-80 cm; during the growing season, select 2 main branches in 2 directions at the base, and use wooden sticks to support the branches or pull them with hemp rope Branches, the base angle of the branches is 65-68 degrees, and the two main branches extend left and right to the rows. The technique of pulling branches is one of the key techniques for pear tree upside-down "person" shape shaping. In the winter of the planting year, lightly cut off the central stem, and the second bud of the cut edge extends to the interplant; when pruning in winter, the main branch is selected for short-cutting, and the competing branches of the main branch extension branches are thinned or flattened. When the number of main branches i...
Embodiment 2
[0045] The comparison test was carried out according to the method of Example 1 and the method described in the specific implementation of the pear tree "3 plus 1" tree shape (ZL201010230570.1), and the varieties were Fengshui, Cuiguan and Huanghua pear. Compared with the "3 plus 1" tree shape, the inverted "one" tree shape is flat, the canopy opening is increased by 7.3-12.4%, the canopy light quantum flux density is increased by 8.7-11.8%, and the cultivation density is increased by 32.5%. 2 Fruit per unit yield increased by 8.1-13.3%, fruit soluble solids increased by 0.2-0.3%, and young tree shaping labor decreased by 2.4-3.1.
[0046] The canopy parameters, fruit yield and quality indicators and labor consumption of pear trees planted by the two shaping methods are shown in Table 1.
[0047] Table 1 Comparison of canopy parameters, yield quality indicators and plastic labor of pear trees with inverted "ge" shape
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