RE: [compost_tea] Humic Acid
Hi Jose -
I agree with your assessment about the hype involved with the humic acid
industry. But they provide a service to people who want to buy their humic
acid material, or need to build up their fungal biomass so they can start
making their own humics. So, test several products and see which one works
best for you.
Ultimately, I would like to see folks extracting their own humic acid from
their own compost. Fungi in thermal compost or worm compost make fulvic and
humic materials, and these can be extracted and applied easily. However, no
fungi, no decent humic material produced.
Simply moving water (simple water extraction or leaching) through compost or
worm compost fails to extract THE ORGANISMS and only pulls out SOME of the
soluble nutrients.
To do a good job of pulling out the whole range of humics, fulvics, and
soluble nutrients requires the mixing action in a GOOD compost tea machine.
You have to get the bubbles moving through the compost. The Soil Soup or
Growing Solutions machines, for example, do not provide this mixing action,
especially given the directions they provide to people who buy their
machines.
Aerobic compost tea gives you a high percentage of the soluble nutrients AND
the organisms. That's why the aeration has to be pretty serious, to get the
organisms and the soluble nutrients into solution, Tea then increases the
populations of beneficial organisms by maintaining conditions that allows
many of the BENEFICIAL organisms to grow to high numbers.
For example, LASE and Blend, made by Huma-Gro (dealers I have worked with for
a long time, but not particularly much recently in Pascoe, WA), have a base
of leonardite, but then they basically compost the material, extract the
humics, concentrate them, and bottle it. These products can be very
beneficial, if you have at least a minimal fungal inoculum in the soil.
So, grow your own humics in your compost, whatever kind of compost you want
to use. Then use a good compost tea machine to extract the organisms and the
nutrients. Applied to your plants in appropriate amounts, at appropriate
times, without killing the life you have in your soil, you should be able to
grow great, not-stressed plants.
Elaine
.
Received on Fri Nov 01 2002 - 13:45:20 EST
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: Tue Feb 07 2012 - 14:26:27 EST