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Vermicompost Tea Production and Plant Growth Impacts

February 1, 2015 by Growing Solutions

Vermicompost Tea Production and Plant Growth Impacts
By Norman Q. Arancon, Clive A. Edwards, Richard Dick and Linda Dick, BioCycle
November 2007

Part I: Research Highlights

Use of vermicomposts, produced through interactions between earthworms and microorganisms, promote the germination growth, flowering and yields of a range of greenhouse and field horticultural crops, including tomatoes, peppers, strawberries, raspberries, grapes, marigolds and petunias. Vermicompost use has become a well-established practice over the last 10 years, in part due to the work of scientists at The Ohio State University.

Filed Under: Education, Science

Effects of Vermicompost Teas on Plant Growth and Plant Diseases

February 1, 2015 by Growing Solutions

Effects of Vermicompost Teas on Plant Growth and Plant Diseases
By Clive A. Edwards, Norman Q. Arancon and Scott Greytak, BioCycle
May 2006

This article highlights recent findings of a Soil Ecology Laboratory research team at Ohio State University in Columbus. The team previously investigated the effects of solid vermicomposts on plant germination and growth, and the suppression of plant disease. More recently, their research extended into the effects of aqueous vermicompost extracts (vermicompost teas) on plant growth and diseases.
“In preliminary research, we have demonstrated clearly that ‘teas’ produced with aeration are much more stable and effective than those produced without aeration.”

The research tested the effects of a range of concentration of teas produced from cattle waste vermicomposts on the germination and growth of tomatoes. All tea concentrations (as low as 0.5%) increased the germination and growth signficantly over a soilless bedding medium without tea.

The research team identified microorganisms and plant growth regulators such as hormones, humic acids and fulvic acids (present in the vermicompost tea) as the most probable mechanisms for growth increases in tomatoes.

Further work by the team involved applying a range of dilutions of vermicompost teas to tomato plants infected with Verticillium wilt, finding after 14 days that all application rates suppressed this plant disease significantly.

Filed Under: Education, Science

Suppressing Plant Parasitic Nematodes and Arthropod Pests with Vermicompost Teas

October 10, 2014 by Growing Solutions

Greenhouse trials confirm that the sooner a tea is used after it is brewed, the more effective it is in influencing plant growth and suppressing diseases. Read the full article:

Suppressing Plant Parasitic Nematodes and Arthropod Pests with Vermicompost Teas

By Clive A Edwards, Norman Q. Arancon, Eric Emerson and Ryan Pulliam, BioCycle
December 2007

Filed Under: Science

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