Sousa Júnior, J. R. de, Lima, G. S. de, Lima, V. L. A. de, Gheyi, H. R., Sousa, J. R. M. de, Andrade, E. M. G., & Soares, L. A. dos A. (2017). Growth and production of sunflower as a function of cationic nature of the water and nitrogen . Bioscience Journal, 33(3), 581–591. https://doi.org/10.14393/BJ-v33n3-36534