The United Nations declared 2026 the Year of the Woman Farmer. In Sonoma County, women have long been thought-leaders and innovators in agriculture. Mai Nguyen, a Sebastopol grain farmer, is working to build a regional grain economy with aims to improve local soil health, increase biodiversity, create agricultural jobs and reconnect consumers with goods made from fresh, locally milled flour. Nguyen’s work as a sustainable farmer and social justi…