Growth and production of sunflower as a function of cationic nature of the water and nitrogen . Bioscience Journal [online], 2017. [online], vol. 33, no. 3, pp. 581–591. [Accessed23 December 2025]. DOI 10.14393/BJ-v33n3-36534. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/36534.