Pregermination method of Sabina Przewalskii kom seeds

A technology for seeds and juniper, applied in the field of seedling raising, can solve the problems of difficulty in breaking seed dormancy, long period of seed seedling raising, uneven emergence of seedlings, etc., and achieve the effects of improving seedling emergence rate in field gardens, reducing seedling raising costs, and simple method.

Inactive Publication Date: 2010-05-05
GANSU PROVINCE ACAD OF QILIAN WATER RESOURCE CONSERVATION FORESTS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the application of this technology, at least there are: Qilian juniper seed coat is thicker, hard and dense, poor air permeability, difficult to break seed dormancy, long seedling cycle, low emergence rate (generally about 28%), uneven emergence, seedling raising The cost is high, the reproduction coefficient is relatively small, and it is difficult to meet the technical problems of modern afforestation and urban landscaping.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 1. Select high-quality seeds with full seeds and no pests and diseases for use.

[0014] 2. In the first ten days of November, choose a shady and ventilated place with flat terrain, dig a pit 60cm deep and 90cm wide, the length depends on the number of seeds, first spread a layer of juniper seeds with a thickness of 6cm on the ground, cover with sand and sprinkle water, After freezing, put a layer of seeds to cover with sand, and then pour water to freeze, preferably 40m thick, and the mixing ratio of seed and sand is 1:1. After it is completely frozen, cover it with flax stalks and other things, and then sow after thawing and thawing from late April to early May of the next year.

[0015] 3. Use mycorrhizal soil + fine sand + original bed soil as the substrate, miscellaneous fertilizers (farmyard manure), chemical fertilizers, and sheep manure as the base fertilizer to make the sowing substrate, and disinfect it with 0.05 potassium permanganate solution, and treat it w...

Embodiment 2

[0017] 1. Select high-quality seeds with full seeds and no pests and diseases for use.

[0018] 2. In the first ten days of November, choose a shady and ventilated place with flat terrain, dig a pit 80cm deep and 90cm wide, the length depends on the number of seeds, first spread a layer of juniper seeds with a thickness of 9cm on the ground, cover with sand and sprinkle water, After freezing, put a layer of seeds to cover with sand, and then pour water to freeze, preferably 40-50cm thick, and the mixing ratio of seed and sand is 1:2. After it is completely frozen, cover it with flax stalks and other things, and then sow after thawing and thawing from late April to early May of the next year.

[0019] 3. Use mycorrhizal soil + fine sand + original bed soil as the substrate, miscellaneous manure (farmyard manure), chemical fertilizer, and sheep manure as the base fertilizer to make the sowing substrate, and disinfect it with a 0.1% solution of potassium permanganate. The treate...

Embodiment 3

[0021] 1. Select high-quality seeds with full seeds and no pests and diseases for use.

[0022] 2. In the first ten days of November, choose a shady and ventilated place with flat terrain, dig a pit 60cm deep and 90cm wide, the length depends on the number of seeds, first spread a layer of juniper seeds with a thickness of 6cm on the ground, cover with sand and sprinkle water, After freezing, put a layer of seeds to cover with sand, and then pour water to freeze, preferably 40cm thick, and the mixing ratio of seed and sand is 1:3. After it is completely frozen, cover it with flax stalks and other things, and then sow after thawing and thawing from late April to early May of the next year.

[0023] 3. Use mycorrhizal soil + fine sand + original bed soil as the substrate, miscellaneous fertilizers (farmyard manure), chemical fertilizers, and sheep manure as the base fertilizer to make the sowing substrate, and disinfect it with 0.05 potassium permanganate solution, and treat it ...

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PUM

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Abstract

The invention relates to a pregermination method of Sabina Przewalskii kom seeds, which comprises the following steps of: selecting fine full Sabina Przewalskii kom seeds without being damaged by diseases and insects; in the first ten-day period of November, digging a pit in a shady ventilative flat area; spreading the Sabina Przewalskii kom seeds on the ground of the pit, covering with sand and watering; spreading another layer of seeds after water is frozen; and then watering for freezing again; seeding after thawing during the period from the last ten days of April to the first ten days of May; preparing a seeding ground substance by using mycorrhiza soil, silver sand and original bed soil as a ground substance and using mixed manure, chemical fertilizer and sheep dung as a base fertilizer; sterilizing; and seeding the seeds treated last year on a prepared seed bed. The invention reduces seeding quantity and greatly improves reproduction coefficient, increases seed germination percentage and emergence rate in field gardens, shortens seedling culture cycle and has the advantages of simple frozen pregermination method, easy material obtaining, low cost and easy learning.

Description

technical field [0001] The invention relates to a seedling raising technology, in particular to a method for sowing and raising seedlings of coniferous species with long seed dormancy period and low seedling emergence rate after natural sowing, in particular to a method for accelerating germination of Qilian juniper seeds. Background technique [0002] Qilian juniper (Sabina Przewalsbii Kom) is a unique tree species on the northeast edge of the Qinghai-Tibet Plateau in my country, and it is distributed in Gansu, Qinghai, Sichuan and other provinces (regions) in China. The main distribution area in Gansu is located between 98°-104° east diameter and 33°50′-40°30′ north latitude, including Sunan, Zhangye, Minle, Shandan, Yongxian, Wuwei, Gulang, Tianzhu In other counties, the sunny slopes, semi-shady slopes, semi-shady slopes, and shady slopes on the northern slope of the Qilian Mountains at an altitude of 2,500 to 3,500 m are mostly preserved as sparse forests or pure forests...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/00A01G9/10
Inventor 孟好军刘贤德李秉新
Owner GANSU PROVINCE ACAD OF QILIAN WATER RESOURCE CONSERVATION FORESTS RES INST
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