Analysis of the impact of some agroecological factors on sugar beet production

analyse statistique azote beta vulgaris calidad contenido de materia seca crop yield dry matter content fertilisation fertilizer application fosforo herbicidas herbicide herbicides nitrogen phosphore phosphorus plant growth substances potasio potassium precipitation quality racine remolacha azucarera rendement des cultures rendimiento de cultivos roots saccharose sodio sodium statistical analysis sucrosa sucrose sugar beet sustancias de crecimiento vegetal temperatura temperature