Oliveira, F. S. de, E. C. Sousa Sarmento, J. L. D. Dombroski, D. V. Silva, C. D. M. Freitas, M. F. Souza, M. P. da S. Borges, and L. M. da . Silveira. “Accumulation of Macronutrients in Cowpea and Weeds in Competition and under Soil Water Deficit”. Bioscience Journal, vol. 35, no. 6, Dec. 2019, pp. 1747-5, doi:10.14393/BJ-v35n6a2019-42432.