Cultivating method for elm with golden crown

Abstract

The invention relates to a cultivating method for an elm with a golden yellow crown. The method includes the following steps: (1) selecting a golden leaf elm branch which is strong and has two to three sprouts as a scion, and cutting the lower end part of the scion to form a wedge; (2) selecting a white elm with the outer diameter of 10 centimeters and without pests and diseases, cutting off the white elm in a position of 80 centimeters from the ground, and cutting an open mouth in the section close to the one-third edge, wherein the size of the open mouth is greater than that of the wedge at the lower end part of the scion; (3) embedding the wedge at the lower end part of the white elm in the open mouth, and binding and fixing the outer surface of the scion with plastic strips; (4) removing coppice shoots on a stock; (5)loosening the plastic strips when the scion grows to 30 centimeters and accomplishing the cultivation. The elm cultivated by the invention has the benefits that the crown of the elm is dark golden yellow in spring and light golden yellow in summer; the elm has dwarf branches, shortened bud distance and a full-grown shape; the elm can grow in alkaline soil with a salt content of more than 5%; leaf surfaces of the elm are large in size; the elm sprouts 5 days earlier than common elms, and grows faster; roots of the elm grow well; the elm is highly resistant to droughts, saline-alkaine resistant, and insect free.

Description

technical field [0001] The invention belongs to elm cultivation technology field , especially a cultivation method of golden crown elm. Background technique [0002] Elm tree, a deciduous tree, up to 25 meters high, with an upright trunk, many branches, and a nearly spherical or oval crown. In Northeast, Northwest, North China, East China and other places, it is mostly grown on both sides of rivers, foothills and fields below 1000 meters above sea level. It is fond of light, its skin leaves and fruits can be used as medicine, and its seeds can be used to extract oil. It is a raw material for medicine and chemicals. [0003] Elm is a good street tree and shade tree, which can be used for factory greening, building shelter forests and greening around buildings. The wood is straight and can be used for the manufacture of houses, furniture and farm tools. When planted, it has a certain resistance to drought and cold. The crown of elm is single in color, which cannot be well de...

AI Technical Summary

Problems solved by technology

When planted, it has a certain resistance to drought and cold. The crown color of elm is single, which cannot be well decorated in the city, and there are many diseases and insect pests of elm