Four Scientists on Natural Farming: Proof, Biochar, Minerals
Four short research talks that followed Drake Weinert's keynote. Ted Radovich (UH Mānoa CTAHR) showed his lab's work on Hawaiʻi soils, cover crops, compost and compost tea; James Rushing (UH Hilo) listed what science does and does not yet know about natural farming, and said no top-tier peer-reviewed paper showed it working; Josiah Hunt (Pacific Biochar) explained biochar and read results from published studies; Jana Bogs, a nutritionist and soil consultant, argued for testing soil minerals and microbes, and warned about the sodium in seawater. Each talk got a few questions from the floor.
Found Weathered soil vs fertile soil: P 0.9 vs 480 ppm, Ca 38 vs 4,524, Al 142 vs 15