A kind of cultivation method of Camellia oleifera dwarf multi-branched seedlings

Abstract

The invention discloses a cultivation method of oil-tea camelia dwarfing multi-branch seedlings and belongs to the technical field of agricultural planting. The cultivation method includes that a conventional grafting seedling growing method to cultivate oil-tea camelia seedlings, and after the seedlings grow into a 2-year period, thinning is performed before spring-top germination and after spring-top semi-lignification respectively; trimming is performed on the seedlings for three times for height controlling in a spring-top semi-lignified period, after summer tops stop growing and in an autumn-top semi-lignified period; fertilizing is performed in a spring-top germination period, a summer-top germination period and an early autumn-top germination period respectively; flood drainage work is enhanced in rainy seasons, irrigation is performed properly in drought seasons, and out-of-nursery afforestation transplanting can be performed after the seedlings are cultivated to the end of the 2-year period. The seedlings cultivated by the method have the advantages of being dwarf, robust, branch-rich and high in outplanting qualification rate.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a method for cultivating dwarfed multi-branched seedlings of camellia oleifera. Background technique [0002] Camellia oleifera, also known as camellia oleifera, camellia oleifera and white flower tea, is the main woody edible oil tree species in my country. Accelerating the development of camellia oleifera industry is a strategic measure to improve the structure of people's edible oil and maintain the national oil security. In 2009, the three ministries and commissions of the country issued the "National Camellia Camellia Industry Development Plan (2009-2020)", which proposed a development target of more than 40 kilograms of oil per mu in new Camellia oleifera forests, which is about 5kg higher than that of existing low-yielding forests. More than 35kg, this goal puts forward higher requirements for the selection of Camellia oleifera varieties and the quality of s...

AI Technical Summary

Problems solved by technology

At present, the proportion of bare-root seedling cultivation still dominates. In order to reduce costs, the producers of Camellia oleifera seedlings have high initial planting density and low scientific management level. The seedling yield per mu is as high as 50,000. The range is mostly 10-100cm, and the seedlings with weak growth potential are in a shaded state for a long time, resulting in a large number of seedlings weakening, the branching rate is extremely low, the proportion of single-stem seedlings is as high as 60%, and the qualified rate of seedlings out of the nursery is less than 70%

However, the seedlings still have technical problems such as low branching rate, low qualified rate of nursery stock, and obvious differences in tree structure differentiation.

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