In August, the International Biochar Initiative will tour Washington orchards and vineyards as part of a study tour hosted by Qualterra in Spokane. The tour, scheduled Aug. 11–15, will visit Qualterra’s biochar facility in Cheney, The Soil Center’s biochar and vermicompost systems in Royal City, and several Washington orchards using biochar as a soil amendment.  To learn more about the tour and to register, go to: biochar-international.org/event/august-2025-biochar-education-program-washington-us. Related: A better use for ag waste Related: Tech aims to turn burn piles into profits for tree fruit growers