Steiner’s work is shown in the two pictures at left and demonstrate the
effectiveness of a charcoal amendment.
The one on the right is from the Food and Fertilizer Technology Center
which is showing the benefit of using rice hull char for enhanced
agricultural production. Japanese researchers Kishimoto and Sugiura reported
significant biomass increases in their study of charcoal addition to sugar
trees. The increased cation exchange capacity, decreased leaching, increased
water holding capacity and support for increased microbial growth provide
inherent benefits for the use of char. It appeared that a porous carbon
“land-reef” type soil amendment could offer increased crop yields sufficient
to off set its alternate use in combustion and CO2 emitter. Our research
began to develop a further value-add carbon material to be a carrier for
essential nitrogen as well as a preferred microbial environment.