produced at 900, 600, 500, 450, and 400C.
sieved to #30 mesh, wt 20g.
nSoaked 5 min.
in 48% NH4NO3 solution.
nEach rinse =
100 ml water 8.0 pH
stabilized after a few rinses
at chars produced 400 C very gradually released its
We conducted leaching experiments on a variety of chars
This proved out
true in our own tests. We experimented with several different charcoals to
determine a charcoal with properties suitable for carrying plant nutrients.
The difference in the lowest temperature char still surprised us.Most of my charcoal samples would stabilize
after the 5 or 6th rinses.But the one produced at 400C was still slowly releasing ammonia after