Comparison of crop management effects on spring barley cultivars grown on three soil types in southwestern Quebec

abonos nitrogenados agronomic characters calidad clay soils conduite de la culture crop management crop yield espacement espaciamiento etefon ethephon genetic variation hordeum vulgare loam soils manejo del cultivo nitrogen fertilizers quality quebec rendement des cultures rendimiento de cultivos sandy soils soil types sol argileux sol sableux sol sablolimoneux spacing suelo arcilloso suelo arenoso suelo franco triadimefon type de sol variedades varieties