Breeding and cultivating method for Chinese pines

Abstract

The invention discloses a breeding and cultivating method for Chinese pines. The method comprises steps as follows: (1) preparation of a nursery firstly, neutral sandy loam or loam is selected for preparation of the nursery base having the soil layer thickness higher than at least 2 m; (2) seeding: seeding is performed from late March to mid-April in the second year; (3) management at a seedling stage: water is sprayed to keep a bed surface moist before nursery stocks come up, water irrigation is performed once when 70% of the nursery stocks come up and fall, when the winter arrives, the nursery stocks is irrigated with water, buried in soil and covered with straw or films for cold prevention, and soil burying the nursery stocks or the straw or the films covering the nursery stocks are removed in late April in the third year; (4) cultivation of the nursery stocks: the nursery stocks growing by more than 50 cm are transplanted in late April every year, the nursery stocks surviving after transplantation are irrigated with water once every two months in the growth season, nitrogen fertilizer is applied twice to three times every year, and whitening or spraying of lime sulphur is performed on trunks in winter every year. With the adoption of the method, the breeding and cultivating survival rate of the Chinese pines can be effectively increased.

Description

technical field [0001] The invention relates to a method for propagating and cultivating trees, in particular to a method for propagating and cultivating Pinus tabulaeformis, belonging to the technical field of agricultural tree cultivation. Background technique [0002] Pinus tabulaeformis, also known as short-leaf pine, short-leaved masson pine, red bark pine, and northeast black pine, is an evergreen coniferous tree species of Pinaceae. More than 25 meters, diameter at breast height can reach more than 1 meter; the lower part of the bark is grayish brown, cracked into irregular scales, the large branches are flat or oblique, and the old trees have flat tops; the branchlets are thick and strong; the male cones are cylindrical, 1.2-1.8 cm long , clustered in the lower part of new shoots in a spike shape; cones are ovate or ovoid, 4-9 cm long, with short stems, drooping downwards, seeds ovoid or long ovoid, light brown with markings, long 6-8 mm, 4-5 mm in diameter, 1.5-2.0...

AI Technical Summary

Problems solved by technology

[0003] Chinese pine has a very beautiful posture and can be used as road and park greening. Chinese pine can also grow on rocky cliffs to protect water and soil erosion. Chinese pine wood is rich in turpentine and resistant to decay. Rods, man-made fibers and other materials, the trunk can be cut turpentine, extract turpentine, bark can extract tannin, pine knots, needles and pollen can be used as medicine, and turpentine can also be used for industrial purposes. Therefore, the utilization value of Pinus tabulaeformis is very high , but the current reproduction and cultivation survival rate of Pinus tabulaeformis is relatively low, and the growth state of Pinus tabulaeformis in the later stage is not good