Method for growing container seedlings of cork oak in winter

Abstract

The invention mainly relates to a method for growing container seedlings of cork oak in winter, belonging to a technology of growing container seedlings of forest trees. The method is characterized in that the features of large moisture and no dormancy of obstinate seeds are sufficiently used; seedlings of cork oak seeds are sowed and grown in winter; and a complete set of strict operation methods, comprising control over sowing time, greenhouse temperature and illumination control, seedling fertilization, management of temporary planting and the like. According to the method provided by the invention, the difficulty of excessive consumption of human and material resources for storing the cork oak seeds is primarily solved; sufficient labor force in winter can be sufficiently used; the cost of growing the seedlings is reduced; the breeding time for growing the seedlings in winter in a greenhouse is from the beginning of November to the middle ten days of April of the next year; two seasons of seedlings can be grown in one year; the turnover rate of growing the seedlings in the greenhouse is enhanced; the difficulties of control over seedling growing temperature and illumination are solved by using facilities of shading nets, heat preservation nets and the like of the greenhouse; the height of each container seedling of the cork oak is 14.4cm; the ground diameter is 3.15mm; the biomass liveweight of a single plant is 3.159g; after the cork oak grown in winter is grown out of a garden in spring, the cork oak can be used for afforestation through a short-term temporary planting in a reproducing area; and the cost of temporary planting and overwintering management of up to six months in autumn and winter in traditional seedling growth in spring is reduced.

Description

1. Technical field

[0001] The invention relates to a method for cultivating container seedlings, in particular to a technology for growing seedlings of oak cork container seedlings in winter. 2. Background technology

[0002] According to the characteristics of seed storage, seeds are divided into two categories: normal seeds and recalcitrant seeds. Different from normal seeds, recalcitrant seeds do not go through the mature dehydration period when they leave the mother plant. Their water content is relatively high and they are extremely sensitive to dehydration and low temperature, so they are not resistant to storage. Quercus variabilis is an important afforestation tree species and economic tree species in my country, but its seeds are recalcitrant. Seed storage has strict requirements on water and temperature, and storage conditions are not easy to master. How to preserve Quercus variabilis seeds is still a scientific problem. The production of cork oak is usually sown ...

Examples

Embodiment Construction

[0021] (1) Treatment of Quercus variabilis seeds On September 18th, mature Quercus variabilis seeds were collected at the Beijing Sizuolou Quercus variabilis Breeding Base. After the seeds were cleaned, the seeds were immersed in warm water at 50°C for 30 minutes to kill the weevils, and then the seeds were mixed with wet The sand is thoroughly mixed with a volume ratio of 1:3, packed into a tray, and placed in a refrigerator with the temperature set at 2°C. On November 1, when other seedlings in the full-light continuous-span greenhouse have free seedbeds, move the trays in the refrigerator into the greenhouse. Make an arch shed with white plastic sheeting and bamboo, buckle it on the tray, and then put it on the seedbed to germinate, turn it over once a day, and keep it moist with water.

[0022] (2) Greenhouse temperature control On November 1st, boiler water heating is carried out in the greenhouse; the brake switch is activated, and when the sun sets, the insulation cloth...

1. Technical field

[0001] The invention relates to a method for cultivating container seedlings, in particular to a technology for growing seedlings of oak cork container seedlings in winter. 2. Background technology

[0002] According to the characteristics of seed storage, seeds are divided into two categories: normal seeds and recalcitrant seeds. Different from normal seeds, recalcitrant seeds do not go through the mature dehydration period when they leave the mother plant. Their water content is relatively high and they are extremely sensitive to dehydration and low temperature, so they are not resistant to storage. Quercus variabilis is an important afforestation tree species and economic tree species in my country, but its seeds are recalcitrant. Seed storage has strict requirements on water and temperature, and storage conditions are not easy to master. How to preserve Quercus variabilis seeds is still a scientific problem. The production of cork oak is usually sown ...

Examples

Embodiment Construction

[0021] (1) Treatment of Quercus variabilis seeds On September 18th, mature Quercus variabilis seeds were collected at the Beijing Sizuolou Quercus variabilis Breeding Base. After the seeds were cleaned, the seeds were immersed in warm water at 50°C for 30 minutes to kill the weevils, and then the seeds were mixed with wet The sand is thoroughly mixed with a volume ratio of 1:3, packed into a tray, and placed in a refrigerator with the temperature set at 2°C. On November 1, when other seedlings in the full-light continuous-span greenhouse have free seedbeds, move the trays in the refrigerator into the greenhouse. Make an arch shed with white plastic sheeting and bamboo, buckle it on the tray, and then put it on the seedbed to germinate, turn it over once a day, and keep it moist with water.

[0022] (2) Greenhouse temperature control On November 1st, boiler water heating is carried out in the greenhouse; the brake switch is activated, and when the sun sets, the insulation cloth...