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Preparation and seedling methods of nutrient solution and seedling medium for organic floating seedling of tobacco

A technology for floating seedlings and seedling substrates, which is applied in the preparation of organic fertilizers, organic fertilizers, and bio-organic part treatment, etc. It can solve the problem that tobacco seedlings cannot meet the requirements of organic tobacco leaf production, cannot absorb water and nutrients, and increase root rot Occurrence probability and other issues, to achieve the effect of reducing the amount of peat used, good ventilation, and good fertilizer retention

Inactive Publication Date: 2010-08-25
CHINA AGRI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the tobacco seedlings provided by the conventional floating seedling cultivation technology cannot meet the requirements of organic tobacco leaf production
At the same time, the existing organic seedling substrates and nutrient solutions used for seedling cultivation are also different. There are problems that the substrates and nutrient solutions are difficult to obtain on-site materials, and the nutrient solutions are difficult to organically. At the same time, the common seedling substrates on the market have a high soluble salt content. Excessive soluble salt content in the medium may not only form reverse osmosis pressure, but also replace the water in the root system of the seedlings, causing the root tips of the plant seedlings to turn brown or dry, and the root system of the plants is damaged, unable to absorb water and nutrients, causing the seedlings to wilt and yellow. Symptoms such as tissue necrosis or short plant; and too high soluble salt content in the substrate fertilizer will also increase the incidence of root rot caused by the cotton rot fungus and reduce the growth rate of seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: The preparation of the nutrient solution for tobacco organic floating seedlings is to add water to the decomposed rapeseed cake, ferment it for 10-15 days under stirring or aerobic conditions, and filter the obtained extract to water in a volume ratio of 1:3 Mix to make nutrient solution for tobacco organic floating seedling raising, rapeseed cake filter residue for standby, decomposed rapeseed cake and water are mixed according to the volume ratio of 1:10. The spare rapeseed cake filter residue is dried in the air, crushed and passed through a 3-5 mm sieve to obtain dry powder of the decomposed rapeseed cake residue after leaching. After the prepared nutrient solution for tobacco organic floating seedling cultivation and the decomposed rapeseed cake leaching residue are dried and crushed, the tobacco organic floating seedling cultivation substrate is prepared. The preparation of the nursery substrate is to take 60 parts of vermicompost according to the volum...

Embodiment 2

[0020] Example 2: The preparation of the nutrient solution for tobacco organic floating seedlings is to add water to the decomposed rapeseed cake, ferment for 10-15 days under stirring or aerobic conditions, and filter the obtained extract to water in a volume ratio of 1:3 Mix to make nutrient solution for tobacco organic floating seedling raising, rapeseed cake filter residue for standby, decomposed rapeseed cake and water are mixed according to the volume ratio of 1:10. The spare rapeseed cake filter residue is dried in the air, crushed and passed through a 3-5 mm sieve to obtain dry powder of the decomposed rapeseed cake residue after leaching. After obtaining the nutrient solution for tobacco organic floating seedlings and the leaching of decomposed rapeseed cakes, the residues are dried and crushed to prepare the tobacco organic floating seedlings. After cake extraction, 15 parts of dry residue and 10 parts of perlite are mixed and stirred evenly, and then placed in a flo...

Embodiment 3

[0021] Example 3: The preparation of the nutrient solution for tobacco organic floating seedlings is to add water to the decomposed rapeseed cake, ferment for 10-15 days under stirring or aerobic conditions, and filter the obtained extract to water in a volume ratio of 1:3 Mix to make nutrient solution for tobacco organic floating seedling raising, rapeseed cake filter residue for standby, decomposed rapeseed cake and water are mixed according to the volume ratio of 1:10. The spare rapeseed cake filter residue is dried in the air, crushed and passed through a 3-5 mm sieve to obtain dry powder of the decomposed rapeseed cake residue after leaching. After obtaining the nutrient solution for organic floating seedlings of tobacco and the residue after extraction of decomposed rapeseed cakes, the seedling substrate for organic floating seedlings of tobacco was prepared. Mix 35 parts of dry minced powder and 30 parts of perlite and put them in a floating tray with 10×16 holes, fill ...

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Abstract

The invention discloses preparation and seedling methods of nutrient solution and seedling medium for organic floating seedling of tobacco, comprising the following steps: adding water to fermented rape seed cake; fermenting for 10-15 days in stirring or oxygenation condition; filtering obtained leach liquor to prepare nutrient solution for organic floating seedling of tobacco; and filtering residues of the rape seed cake for stand-by application. The method has the advantages of low content of soluble in medium, high yield of tobacco seedlings, high quality of tobacco seedlings, easily obtained material, overall organification and application to generalization.

Description

technical field [0001] The invention relates to a nutrient solution for tobacco organic floating seedling cultivation, a method for preparing a seedling cultivation substrate and a seedling cultivation method, and belongs to the technical field of tobacco organic floating seedling cultivation. Background technique [0002] In the production of organic tobacco leaves, the whole production process must meet the production standards of organic tobacco leaves, except that the place of origin meets the certification standards of organic production places. At present, the production of flue-cured tobacco adopts the method of floating seedlings to provide tobacco seedlings for production. The nutrients required for the existing floating seedlings mainly come from the application of chemical fertilizers to provide nutrients. The production of organic tobacco leaves requires that no chemical fertilizers be used in the entire production process. Therefore, the tobacco seedlings provid...

Claims

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Application Information

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IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 杨双剑孟琳夏海乾王茂胜石俊雄杜相革
Owner CHINA AGRI UNIV
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