Orchard building method capable of shortening building time of cunninghamia lanceolata seed orchard

Abstract

The invention relates to an orchard building method capable of shortening the building time of a cunninghamia lanceolata seed orchard. The orchard building method comprises the following steps: selecting cunninghamia lanceolata seedlings in large nutrition bags to perform stock cultivation and planting; performing grafting twice in spring and autumn every year; complementarily planting large-container grafted seedlings to ensure forest form orderliness; performing management after grafting. According to the method, the traditional building time of 4 to 5 years is shortened to 2.5 to 3 years, the orchard building efficiency is improved, and the survival rate of grafting is improved; meanwhile, stock plants in the seed orchard are uniform in size, and the forest form is ordered. According to the method, early production of a fine cunninghamia lanceolata seed base can be realized, the seed yield is increased, fine seeds can be supplied in time, and the production and breeding progresses of fine cunninghamia lanceolata seeds are accelerated.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a gardening method for shortening the construction time of fir seed gardens. Background technique [0002] Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) is an important tree species for artificial forestry in southern my country. The afforestation area accounts for 19% of the national plantation area, and the timber production accounts for 25% of the national commercial timber output. The afforestation area and forest stock The quantity ranks first in my country's artificial forests, and some experts call it the "national tree". [0003] In order to improve the productivity of Chinese fir plantations, the vast Chinese fir cultivation areas in southern my country usually build seed orchards of Chinese fir to produce seeds with good genetic quality to cultivate fine seedlings, so as to increase the growth of Chinese fir plantation wood from the genetic control. The exist...

AI Technical Summary

Problems solved by technology

[0004] However, with the traditional Chinese fir seed orchard construction method, the construction period of the seed orchard is relatively long. Generally, it takes 2 years to cultivate rootstocks and 2 to 3 years to graft in the seed orchard, and it often takes 4 to 5 years to complete the construction of the seed orchard. Work

To a certain extent, this has affected the production and supply of Chinese fir seed orchards.

Images