A method for reducing soil organic pollution and producing selenium-enriched tea in a low-selenium tea garden

A technology of organic pollution and selenium-enriched tea, which is applied in the field of soil organic pollution restoration, can solve pollution and other problems, and achieve the effects of reducing organic pollution, fast absorption, and environmental friendliness

Active Publication Date: 2016-01-06
光大环境修复(江苏)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of the ubiquitous problems of organic pesticide pollution and low selenium in existing tea gardens, the object of the present invention is to provide a method for reducing soil organic pollution and producing selenium-enriched tea in low selenium tea gardens. Organic pollution such as pesticides can protect food safety, improve the quality of selenium content in tea, make tea reach the level of selenium, and play a role in health care

Method used

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  • A method for reducing soil organic pollution and producing selenium-enriched tea in a low-selenium tea garden
  • A method for reducing soil organic pollution and producing selenium-enriched tea in a low-selenium tea garden
  • A method for reducing soil organic pollution and producing selenium-enriched tea in a low-selenium tea garden

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Effect test

Embodiment 1

[0034] In the maintenance stage of the non-picking period of the tea garden, dig a 5-10cm wide and 10-15cm deep infiltration ditch between the tea tree avenues, and dig the filter ditch for 1-2 times on the wasteland of the tea garden 1-3 years before the tea garden treatment, 3- Reduce the frequency after 5 years, apply sodium selenite and Fe 2+ Activated sodium persulfate mixed solution: wherein, the mass concentration of ferrous sulfate heptahydrate solution is 1.8%, the mass concentration of sodium persulfate solution is 3%, the mass concentration of sodium selenite solution is 0.3%, and the remaining ingredients are pure water, The total mass of the solution is 500kg. The time of spraying the selenium fertilizer solution is from the afternoon to dusk or on the surface of the tea leaves in cloudy weather. If it rains within 2 to 3 days after spraying the selenium fertilizer solution, it needs to be re-sprayed. After 10 to 15 days of curing, take soil samples to detect the...

Embodiment 2

[0036]In the maintenance stage of the non-picking period of the tea garden, dig a 5-10cm wide and 10-15cm deep infiltration ditch between the tea tree avenues, and dig the filter ditch for 1-2 times on the wasteland of the tea garden 1-3 years before the tea garden treatment, 3- Reduce the frequency after 5 years, apply sodium selenite and Fe 2+ Activated sodium persulfate mixed solution: wherein, the mass concentration of ferrous sulfate heptahydrate e solution is 5.4%, the mass concentration of sodium persulfate solution is 5%, the mass concentration of sodium selenite solution is 0.8%, and the remaining components are pure water , the total mass of the solution is 300kg, and the time to spray the selenium fertilizer solution is from the afternoon to dusk or on the surface of the tea leaves in cloudy weather. After 10 to 15 days of curing, take soil samples to detect the total content of organic pollutants and the content of main organic pollutants in the soil, and take soil...

Embodiment 3

[0038] In the maintenance stage of the non-picking period of the tea garden, dig a 5-10cm wide and 10-15cm deep infiltration ditch between the tea tree avenues, and dig the filter ditch for 1-2 times on the wasteland of the tea garden 1-3 years before the tea garden treatment, 3- Reduce the frequency after 5 years, apply sodium selenite and Fe 2+ Activated sodium persulfate mixed solution: wherein, the mass concentration of ferrous sulfate heptahydrate solution is 9%, the mass concentration of sodium persulfate solution is 8%, the mass concentration of sodium selenite solution is 1.1%, and the remaining ingredients are pure water, The total mass of the solution is 187.5kg, and the time of spraying the selenium fertilizer solution is from the afternoon to dusk or on the surface of the tea leaves in cloudy weather. If it rains within 2 to 3 days of spraying the selenium fertilizer solution after spraying, it needs to be re-sprayed. After 10 to 15 days of curing, take soil sample...

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Abstract

The invention discloses a method of lowering soil organic pollution for a low-selenium tea garden and producing selenium-rich tea. According to the method, infiltration ditches are dug in ways among tea trees of the tea garden; mixed solution of soil remediation agent, sodium selenite or sodium selenite, and Fe2+-activated sodium persulfate is applied into the infiltration ditches; tea garden soil is cured for 10-15 days to remove organic pollutants, such as residual pesticides, from the tea garden, and to increase selenium content in the soil; selenium fertilizer (sodium selenite or sodium selenite) is sprayed to tea leaves 15-22 days before a picking period; after picking, the tea leaves are made into selenium-rich tea by a processing technique of tea leaf. The method has the advantages that soil organic pollution can be significantly reduced, selenium content in the tea leaves is significantly increased, high-quality selenium-rich tea can be produced finally, the method is applicable to fast, effective restoration of organic pesticide polluted soil of the low-selenium tea garden and increasing the rate of tea leaves absorbing elements beneficial to human.

Description

technical field [0001] The invention relates to the field of soil organic pollution restoration and the technical field of agricultural fertilization, in particular to the in-situ restoration of soil organic pollution in low-selenium tea gardens and a method for producing selenium-enriched tea in tea gardens. Background technique [0002] my country is the birthplace of tea culture and the first country in the world to discover and utilize tea trees. Tea has a broad mass base and a large number of drinking groups in my country. At present, the planting area of ​​tea gardens in my country has reached 1.95 million hectares, accounting for about 50% of the total area of ​​tea gardens in the world. my country's tea production has been showing a steady development trend, which has played a positive role in promoting economic development and increasing the income of tea farmers. However, with the development of social science and technology, especially the large-scale application ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01C21/00
Inventor 薛丹唐晓声李海建周芬
Owner 光大环境修复(江苏)有限公司
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