Varieties (3) Wheat (3) Science (3) Mixtures (3) Ecology (3) Yields (3) diversité biologique (2) agriculture biologique (2) mélanger (2) effet (2) écologie (2) Ecology (2) Biodiversity (2) Organic farming (2) Natural immunity (2) Mixing (2) Manufacturers' agents (2) Impact (2) Farmers (2) Experiments (2) Commission merchants (2) Bread (2) Ecosystem services (2) Organic farming (2) Mixing (2) Experiments (2) pain (2) amélioration génétique (1) test (1) stress (1)