On this month’s installment of the testing garden assumptions series I am going to evaluate the two main claims made about compost teas.

Today’s first hypothesis is that AACT increases the number of bacteria through the brewing process however is not necessarily an organic fertilizer.

The second hypothesis is that Compost extractions are an organic fertilizer.

0:40 What is Compost Tea?
0:58 What is Actively Aerated Compost Tea?
1:16 What is a Compost Extraction
1:29 Why is Fertilizer Needed in the Garden?
1:39 Why are Bacteria Needed in the Garden?
3:54 Compost Tea Recipes
5:45 Nutrient Results
8:09 Bacteria Culturing Results
9:35 Summary of Results
10:03 Follow up Video on Compost Tea Product Claims

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Related Videos:Is Epsom Salt useful in Organic Gardening?
https://youtu.be/DaCVoCnzav8
Part 2 Is Compost Tea a Valuable Method in Organic Gardens? Testing Garden Assumptions Series Playlist:
https://www.youtube.com/playlist?list=PL5mfR-r4BXH3UTGH_3UAG6cB8NnlO8M1U
Is Rainwater Safe to use in the Garden?
https://youtu.be/zu6FZYbqCc0
Lab Results:
20 – 20 – 20 Synthetic Fertilizer Dry and Wet
http://www.albertaurbangarden.ca/wp-content/uploads/2016/03/B536679V1-R2015-05-12_09-42-20_R006.pdf
Compost Tea Lab Results Including AACT, and Compost Extraction
http://www.albertaurbangarden.ca/wp-content/uploads/2016/03/B583490V3R-R2015-10-30_14-37-36_R006.pdf
Supporting Material:
[1] Is Rain Water Safe to Use in the Garden?
https://youtu.be/zu6FZYbqCc0
[2] Kelp fertiliser and amendments in Organic Gardening
https://youtu.be/enhH7iWesCE
[3] Dr. Linda Chalker-Scott’s resource paper on foliar application
http://puyallup.wsu.edu/wp-content/uploads/sites/403/2015/03/foliar-feeding.pdf
[4] Dr. Linda Chalker-Scott’s resource paper on Compost Tea’s Pesticide use
http://puyallup.wsu.edu/wp-content/uploads/sites/403/2015/03/compost-tea.pdf
[5] Dr. Linda Chalker-Scott’s resource papers
http://puyallup.wsu.edu/lcs/