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Method for producing mycorrhizal tobacco seedings by utilizing moist and float seedling culturing manner

A technology for floating seedlings and producing bacteria, applied in the directions of botanical equipment and methods, applications, fertilizer mixtures, etc., to achieve the effects of simple operation process, promoting the growth of tobacco seedlings, and promoting the formation of root systems and mycorrhizae of tobacco seedlings

Active Publication Date: 2013-01-09
YUNNAN ACAD OF TOBACCO AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of in tobacco seedling raising process, be suitable for mycorrhizal fungus spore germination, mycelia infect tobacco seedling root system, form the production method of mycorrhizal tobacco seedling, to solve tobacco seedling mycorrhization and nutrient and moisture Contradictions between supply, production of mycorrhizal tobacco seedlings, thereby improving the overall quality of tobacco seedlings, ensuring the growth of tobacco seedlings after transplanting them into the field, improving nutrient status, improving drought resistance and disease resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Select a 112-hole special seedling tray for flue-cured tobacco, put it into the sterilized substrate, and bury the Glomuse etunicatum (Glomuse etunicatum, Becker&Gerdemann, BEG Number 168, BEG-168 for short) after the multiplication of clover and corn. 3 mm deep in the stroma. Then, sow 3 flue-cured tobacco seeds (the variety is K326), and pour water thoroughly. Next, place the seedling tray on the support for moist seedling cultivation, water once a day until the water comes out from the bottom of the seedling tray; on the 11th day after emergence, pour No. 1 nutrient solution once a day until the water comes out from the bottom of the seedling tray. After the 20th day of seedling emergence, transfer the seedling tray into the floating nursery pool containing No. 2 nutrient solution, and carry out floating seedling cultivation according to the conventional management method of floating seedling cultivation of flue-cured tobacco, adding No. 2 nutrient solution once ever...

Embodiment 2

[0025] Select a 162-hole special seedling tray for flue-cured tobacco, put it into the sterilized matrix, and bury the Glomuse etunicatum (Glomuse etunicatum, Becker&Gerdemann, BEG Number 193, BEG-193 for short) after the multiplication of clover and corn 5mm deep in the matrix. Then, sow 3 flue-cured tobacco seeds (the variety is Yunyan 87), and pour water thoroughly. Then, place the seedling tray on the support for moist seedling cultivation, water once a day until the bottom of the seedling tray is watered; after the 10th day of emergence, pour No. 1 nutrient solution once every 3 days. On the 20th day after emergence, the seedling tray was transferred to the floating nursery pool containing No. 2 nutrient solution, and the floating seedling management was carried out according to the conventional management method of flue-cured tobacco floating seedlings, and No. 2 nutrient solution was added once every 7 days; the tobacco seedlings grew to large The seedlings were fixed ...

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Abstract

The invention relates to a method for producing mycorrhizal tobacco seedings by utilizing a moist and float seedling culturing manner and belongs to the technical field of modern agricultural production. The method comprises the following steps: propagating an AM (arbuscular mycorrhizal) fungus fungicide; sterilizing a mixture of soil and river sand; formulating a nutritive solution; and producing the mycorrhizal tobacco seedlings. The invention has the following advantages: 1. after the tobacco seedling provided by the invention is inoculated with mycorrhizal fungi, the mycorrhizal infectionrate of a single tobacco seedling is more than or equal to 35% in transplantation; and the mycorrhizal rate of the tobacco seedling is more than or equal to 90%, thereby laying a foundation for cultivating and strengthening the seedling, and improving the antiretroviral ability of the tobacco seedling; 2. in the method, a moist seedling culturing manner is adopted at the primary stage, the seedling is watered once a day with no need of the nutritive solution; the concentration of nutrients in a matrix is low, and the ventilation is good, thus promoting the formation of a tobacco seedling rootsystem infected by the AM fungus and the mycorrhiza; and a float seedling culturing manner is adopted at the later stage, and sufficient nutrition and moisture content are provided, thus promoting the tobacco seedling growth; 3. in the method, a seedling culturing plate is adopted to culture the seedling, and large-scale intensification production can be realized; and 4. the method has the advantages of wide raw material sources, low cost and simplicity in operation.

Description

Technical field: [0001] The invention relates to the technical field of modern agricultural production, and mainly aims at an effective way and a production method for producing mycorrhized tobacco seedlings in the process of growing flue-cured tobacco seedlings. Background technique: [0002] Flue-cured tobacco is an important economic crop in my country. It is mainly distributed in the southwest region. The planting area and output of flue-cured tobacco in Yunnan, Guizhou, Sichuan and Chongqing account for more than 80% of the country's total. Due to the influence of the monsoon climate of the Pacific Ocean and the Indian Ocean, there is less precipitation in May after transplanting the flue-cured tobacco, the soil is often dry and dry, and the seedling period is prolonged, which affects the growth and development of the tobacco plants. In addition, flue-cured tobacco has a large amount of fertilizer and low utilization rate. At present, flue-cured tobacco floating seedli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00C05G1/00
Inventor 杨宇虹晋艳段玉琪邢睿黄建国袁玲梁永江丁伟
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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