Bear Kaufmann, April 7, 2008
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Radish germination was ~one week ago.
Char was mesquite BBQ char (due to availability), crushed and screened to 1/8". Presumably high temp. No nutrients were added to the char itself. No mycorhizal fungi. Mixtures range from 0-100% sand, soil, and char in ~16% increments by volume. 90 pots total. 28 combinations with 3 pots each + 6 additional pots at 33%/33%/33%. Pots are placed randomly in the grid. Radish appears to do much better on pure sand then pure char (which is extreme anyway, the middle range will be more interesting). Plants will be thinned to the two best (of four) per pot this weekend.
Bear Kaufmann
