Escalante G, Herrera R, Aranguren J. Nitrogen fixation in shade trees (Erythrina poeppigiana) in cacao plantations in north Venezuela. PAB [Internet]. 2013 Jul. 30 [cited 2026 Oct. 14];19(13):223-30. Available from: https://apct.sede.embrapa.br/pab/article/view/17535