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A kind of cold-resistant seedling raising method of northern big-leaf privet

A technology of privet and seedlings, applied in the fields of cultivation, agriculture, application, etc., can solve the problems of difficult cold-resistant seedlings of large-leaved privet, and achieve the effects of improving cold resistance, reducing costs, and resisting winter freezing damage

Inactive Publication Date: 2020-06-16
HEBEI ACAD OF FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a cold-resistant seedling raising method of Ligustrum lucidum in the north, so as to solve the problem that Ligustrum lucidum is difficult to raise seedlings against cold in the north

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] In late November 2015, the annual container seedlings were moved to a simple plastic shed, in front of a residential building, and in a sunny place in the Academy of Forestry for overwintering. No frost damage occurred in the three places, and the seedlings survived the winter safely. The seedlings moved in the simple plastic shed germinate earlier and grow faster after being removed in the spring of the following year; some of the leaves of the container seedlings in sheltered places and in front of the building have dried up, but the main trunk has no freezing damage.

[0076] Due to the protective effect of the protected area, the overwintering of annual container seedlings has no shoots. The average trunk height of annual container seedlings is about 1m. After entering the ground in the next year, after a year of continuous growth, the height before winter in the second year is basically above 2m, forming a trunk. Biennial container seedlings are protected from freez...

Embodiment 2

[0078] In the winter of 2014, the two-year-old seedlings of the Academy of Forestry were covered with black plastic film, and potassium dihydrogen phosphate was sprayed three times from mid-October to mid-November, as well as antifreeze produced by Beijing Runhe Tiantai Co., Ltd., 1000 times potassium dihydrogen phosphate, and antifreeze 300 times liquid, the two are mixed together and sprayed with a sprayer or a sprayer. The protected seedlings were significantly less frozen than the control, and the seedlings germinated slightly earlier in the next spring than the control. Black plastic film covering and spraying of potassium dihydrogen phosphate and antifreeze had cumulative effects. In 2015 and 2016, this method was applied to the biennial seedlings of the Academy of Forestry and Dadi Gardening Farm respectively, and good results were achieved.

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Abstract

The invention provides a northern ligustrun lucidum cold resistance seedling growing method. The method comprises the following steps of 1, cold-resistance superior-plant seed collecting and pre-seeding pretreatment; 2, container seedling growing, and overwintering in protected area; 3, biennial seedling close planting and cold-resistance cultivation; 4, cold-resistance cultivation of three-year-old or older nursery stock. Cold resistance strains, container seedling growing and close planting, trimming, overwintering protection and other comprehensive methods are selected, winter freeze injuries can be effectively resisted, the cold resistance of ligustrun lucidum is improved, the cost of ligustrun lucidum in garden application in the Beijing-Tianjin-Hebei region is lowered, ligustrun lucidum seedling growing in the Beijing-Tianjin-Hebei region is achieved, and the technical and material foundations are laid for ligustrun lucidum development in the North China.

Description

technical field [0001] The invention relates to a seedling raising method of privet privet, in particular to a cold-resistant seedling raising method of privet privet in the north. Background technique [0002] Ligustrum Lucidum Ait is native to Asia, such as China, Vietnam, Thailand, India, Laos and other countries. In my country, it is mainly distributed in the Yangtze River Basin and southern provinces. It is also cultivated in North China and Northwest China, and introduced in the United States and Europe. [0003] Ligustrum large-leaf is an evergreen small tree or shrub of the genus Ligustrum in the Oleaceae family. In garden applications, it can be planted as a street tree, or it can be planted alone or in clusters to form a shade tree or forest. Due to the long, dry and windy winter in the northern cities of my country, there are few evergreen tree species that can grow, which makes the winter landscape lacking in color more monotonous, resulting in the feeling of "w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00
CPCA01G17/005
Inventor 林艳赵志新郭伟珍张鸿景徐振华郭小军
Owner HEBEI ACAD OF FORESTRY SCI
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