Uptake and accumulation of micronutrients by stevia were studied under field conditions. Two nutritional indices were evaluated: Nutritional Relative Absorption Rate and Nutritional Organogenic Net Accumulation Rate. Seven samplings with fortnight intervals were made beginning after transplanting. Shortly before or at flowering the production of 1 ton of dry leaves demands, in g: B-89; Cu-26; Fe-638; Mn-207; Zn-13. For seed production corresponding to 1 ton of dry leaves, the extraction of micronutrients, in g, is: : B-226; Cu-76; Fe-2550; Mn-457; Zn-33.
stevia; mineral nutrition; micronutrients; accumulation of nutrients; uptake rate