Print version ISSN 0103-9016
On-line version ISSN 1678-992X
LIMA FILHO, O.F. de; MALAVOLTA, E; SENA, .O.A. de and CARNEIRO, J.W.P. ABSORÇÃO E ACUMULAÇÃO DE NUTRIENTES EM ESTÉVIA Stevia rebaudiana (Bert.) Bertoni: II. MICRONUTRIENTES. Sci. agric. [online]. 1997, vol.54, n.1-2, pp.23-30. ISSN 0103-9016. http://dx.doi.org/10.1590/S0103-90161997000100004.
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.
Keywords : stevia; mineral nutrition; micronutrients; accumulation of nutrients; uptake rate.