This is part one of the research study of Ohio State University on the impact of vermicompost on tea production and plant growth where the research study found out that aerating vermicompost tea during brewing results in significant growth responses, even at the concentration tested.
ARANCON, N.Q. EDWARDS, C.A. DICK, R. DICK, L. (2007): Vermicompost Tea Production and Plant Growth Impacts. Ohio State University