Dependence of the yields of white sugar on geological and soil conditions of Czechoslovakia

agronomic characters alimentos checoslovaquia crops cultivos czechoslovakia economic plants elemento primario del suelo environment environnement europa europe fertilidad del suelo foods genetic soil types industrial crops medio ambiente pedogenese plantas plantas azucareras plantas industriales plante plante de culture plante industrielle plante racine plants productividad productivity productos productos de origen vegetal products produit produit alimentaire profitability remolacha azucarera rendement rendimiento rentabilidad root crops site factors soil fertility soil genesis soil parent materials soil types sucre sugar sugar beet sugar crops type de sol vegetable products yields