A kind of method of cultivating fragrant pear tree novel tree body structure

Abstract

The invention discloses a method for culturing a kuerle fragrant pear tree novel tree body structure, which belongs to the grafting field of pear trees, and comprises steps: (1) rootstock seedlings are planted according to the standard; (2) scions are collected and stored; (3) seedling trunks are cultured; (4) grafting mode and time are selected: stems are used to graft in spring, and buds are grafted in summer and autumn; (5) grafting operation is carried out: (a) the stored scions are taken out, are cut into 2-3 stem segments with plump buds; (b) stem grafting is carried out in spring, buds which are arranged on the scions are arranged on downward positions or side surfaces; (c) buds are grafted in summer and autumn, and are grafted on the backs of branches; (6) new tips which are arranged on the backs of the scions are cultured after the scions survive, and are removed, thereby preventing forming vertical upward branches; (7) films are removed, and protective agents are sprayed to prevent pests and diseases damage; and (8) cultivation protection measures are carried out. The method for culturing the kuerle fragrant pear tree novel tree body structure enables birchleaf pear rootstocks to be backbones of fragrant pear tree bodies, changes a change grafting method, cultures a novel tree body structure, and solves the difficult problems of disease resistance and frost resistance of key parts of fragrant pear trees.

Description

technical field [0001] The invention relates to a method for cultivating a novel tree body structure of a fragrant pear tree, which belongs to the technical field of fruit tree grafting, and in particular relates to a tree-building technology of a Korla fragrant pear tree. Background technique [0002] Du pear ( Pyrus betulifolia Bunge) alias Tangli, Begonia pear, wild pear, soil pear, Rosaceae pear is a deciduous tree with a plant height of 10 meters and branches with thorns. Du pear is drought-resistant, cold-resistant, and barren-resistant. It has an early fruiting period and a long life span. It can grow normally in neutral soil and saline-alkali soil. It is usually used as a rootstock for various cultivated pears. It is cultivated in many places in my country. utensils. [0003] The cold resistance of pears is different. Wild species can withstand low temperatures of -52°C, and cultivated species can withstand -30~-35°C; white pears can withstand -23~-25°C; Korla fra...

AI Technical Summary

Problems solved by technology

The reason for this phenomenon is that due to the adjustment of the agricultural industry structure, a large number of fragrant pears are planted. In the case of increasingly scarce water resources, irrigation is insufficient, and at the same time, there is a lack of organic fertilizer sources and insufficient input of organic fertilizers, resulting in weak tree growth and resistance to stress. Second, in the past 10 years, there have been two extreme low-temperature weather processes in winter, which have caused severe frost damage, resulting in frostbite or freezing to death of fragrant pear trees, causing the epidemic of rot