I recommend that those of you wishing to evaluate humic products send samples
to A&L Agricultural labs in Modesto California. Have them run the assay for
humic acid and have them run the CDFA assay (California assay). This will
give you a measure of the humic acid content and an indication of its nature
with respect to the size of the molecules.
I would also recommend you request the Salt Index, the levels of S, Na, K and
the pH.
This will provide you with some information to judge the quality of the
material.
Tom Piatkowski
To unsubscribe from this group, send an email to:
compost_tea-unsubscribe_at_yahoogroups.com
Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
.
Received on Tue Jan 14 2003 - 02:42:20 EST