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Teixeira, I.R., Borem, A., Andrade, M.J.B. de, Del Giúdice, M.P. and Cecon, P.R. 2008. <b>Chlorophyll levels in common bean plants as influence by manganese and zinc fertilization</b&gt; - DOI: 10.4025/actasciagron.v26i2.1876. Acta Scientiarum. Agronomy. 26, 2 (Apr. 2008), 147-152. DOI:https://doi.org/10.4025/actasciagron.v26i2.1876.