The content and rations of cations in sugar beet plants as a sugar content indicator

aplicaciones del ordenador application des ordinateurs application foliaire azote beta vulgaris calcio calcium chemical composition composition chimique computer applications computer software engrais liquide feuille foliar application fosforo hojas leaves liquid fertilizers logiciel magnesio magnesium monitoring nitrogen nutritive value phosphore phosphorus potasio potassium programas de ordenador racine remolacha azucarera roots saccharose sodio sodium sucrosa sucrose sugar beet valeur nutritive valor nutritivo vigilancia