Wednesday, May 28, 2008

Compost Teas Vs Manure Tea

Compost Teas

Compost teas are made by putting a small quantity of mature compost (in a perforated bag) into water and allowing it to steep (also known as brewing). This creates a compost tea solution that can be applied to the crop as a foliar source of nutrients. Some research has also found suppression of certain plant diseases when applied to crop foliage. Compost teas should only be made with fully mature compost to reduce pathogens. Adding sugar or molasses materials during the steeping process has been reported to increase the incidence of pathogens in the compost tea. Compost tea must be aerated during the "steeping" process and used immediately after steeping to reduce the risk of pathogen contamination. Do not apply compost teas to edible parts of the crop or apply near harvest time.

Manure tea is made using non-composted or improperly composted manure and may contain high levels of pathogens. Do not apply manure tea directly to crops. After field application, observe the appropriate waiting periods before harvest of food crops (example: 4 months).


http;//www.omafra.gov.on.ca/english/engineer/facts/05-021.htm


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