sol (2) Control (2) Soils (2) zinc (1) spectacle (1) sciure (1) racine (1) tourbe (1) papier (1) mousse végétale (1) matériau (1) fumier (1) feuille (1) acide aminé (1) germination (1) effet (1) agriculture (1) bétail (bovins) (1) cation (1) Development (1) Seedlings (1) Area (1) Agriculture (1) Cases (1) Roots (Botany)--Development (1) Area (1) Tryptophan (1) Zinc (1) Wood waste (1) Superoxide dismutase (1)