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Tobacco selenium-rich seedling culturing substrate and using method thereof

A seedling-raising substrate and selenium-enriched technology, which is applied in the direction of botanical equipment and methods, applications, fertilizer mixtures, etc., to achieve remarkable effects, improve effective utilization, and reduce production costs

Inactive Publication Date: 2014-04-16
湖北省烟草公司恩施州公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the seedling-raising substrate in the above-mentioned patent is loose and has good air permeability, it can cultivate strong seedlings, but there is no patent on a simple and practical tobacco selenium-enriched substrate formula and method of use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Weigh 500g of Enshi selenium mineral powder with a particle size less than 0.15mm and a selenium content of 189.0mg / kg, add 1250ml of 5% potassium hydroxide solution, shake at 120r / min for 24h under sealed conditions, and adjust the pH to 7.0, put it in an oven at 60°C for 24 hours to dry the selenium ore powder, crush the selenium ore powder, and pass through a 100-mesh sieve to obtain activated selenium ore powder. Weigh 2500g of peat with a particle size of 3-6mm, 2500g of carbonized chaff and 1250g of perlite, then add 500g of activated selenium ore powder, and spray water with a sprayer while mixing until the raw materials are fully mixed, so that the activated selenium ore powder is completely adsorbed on the The inner and outer surfaces of peat and carbonized chaff, the moisture content of the substrate material is about 25%, and the woven bag lined with polyethylene plastic is used for bagging at a rate of 18kg / bag. When raising seedlings, pour the prepared sele...

Embodiment 2

[0014] Weigh 500g of Enshi selenium mineral powder with a particle size less than 0.15mm and a selenium content of 189.0mg / kg, add 1250ml of 5% potassium hydroxide solution, shake at 120r / min for 24h under sealed conditions, and adjust the pH to 7.0, put it in an oven at 60°C for 24 hours to dry the selenium ore powder, mash the selenium ore powder, and pass through a 100-mesh sieve to obtain activated selenium ore powder; weigh 1250g of peat with a particle size of 3-6mm, carbonized chaff 1250g and 625g of perlite, then add 500g of activated selenium ore powder, spray water with a sprayer while mixing, until the raw materials are fully mixed, so that the activated selenium ore powder is completely adsorbed on the inner and outer surfaces of peat and carbonized chaff, and the moisture content of the matrix raw materials is about 25%, packed in woven bags lined with polyethylene plastic at 18kg / bag. When raising seedlings, pour the prepared selenium-enriched seedling matrix mat...

Embodiment 3

[0016]Weigh 500g of Enshi selenium mineral powder with a particle size less than 0.15mm and a selenium content of 189.0mg / kg, add 1250ml of 5% potassium hydroxide solution, shake at 120r / min for 24h under sealed conditions, and adjust the pH to 7.0, put it in an oven at 60°C for 24 hours to dry the selenium ore powder, mash the selenium ore powder, and pass through a 100-mesh sieve to obtain activated selenium ore powder; weigh 833g of peat with a particle size of 3-6mm, carbonized chaff 833g and 417g of perlite, then add 500g of activated selenium ore powder, and spray water with a sprayer while mixing until the raw materials are fully mixed, so that the activated selenium ore powder is completely adsorbed on the inner and outer surfaces of peat and carbonized chaff, and the moisture content of the matrix raw materials is about 25%, packed in woven bags lined with polyethylene plastic at 18kg / bag. When raising seedlings, pour the prepared selenium-enriched seedling matrix mat...

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Abstract

The invention relates to a tobacco selenium-rich seedling culturing substrate and a using method thereof. The seedling culturing substrate is characterized in a tobacco selenium-rich seedling culturing substrate, which is prepared from the steps of: mixing peat, carbonized husks, perlite and activated selenium mineral powder according to a dry weight ratio of 1:1:0.5:(0.2-0.6); adding water to achieve a water content of 20-30%; and evenly mixing. The using method of the seedling culturing substrate is characterized by comprising the steps of: spraying water on the selenium-rich seedling culturing substrate and pouring the selenium-rich seedling culturing substrate on a floating seedling culturing disk to culture seedling bases. After the substrate produced by the formula is applied for supplementing selenium of tobacco leaves, the quality of the tobacco seedling is improved remarkably, both the dry weight of a root system and a root shoot ratio are enhanced considerably, the production cost of the selenium-rich tobacco leaves is lowered effectively and the utilization rate of the selenium resource is enhanced outstandingly.

Description

technical field [0001] The invention relates to a tobacco selenium-enriched seedling raising substrate and a use method thereof. Background technique [0002] China is rich in total selenium resources, and its industrial reserves rank fourth in the world. However, due to the uneven distribution of selenium resources, 72% of the counties and cities in my country are in a selenium-deficient and low-selenium ecological environment. Among them, from the three northeastern provinces to the Yunnan-Guizhou Plateau, about 2 / 3 of the main crops have low selenium content At 0.05mg / kg, it is an internationally recognized selenium-deficient area. In 2012, my country's tobacco planting area was 21.18 million mu, and the soil in most of the tobacco areas was deficient in selenium. Smoking is harmful to health, and increasing the selenium content of tobacco leaves can effectively reduce the content of major harmful components such as cigarette tar toxicity and free radicals, and reduce th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G31/00C05G1/00
Inventor 王瑞孟贵星樊俊谭军邓建强霍光邸慧慧
Owner 湖北省烟草公司恩施州公司
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