Growth and production of tomato fertilized with ash and castor cake and under varying water depths, cultivated in organic potponics. Acta Scientiarum. Agronomy, [S. l.], v. 39, n. 2, p. 201–209, 2017. DOI: 10.4025/actasciagron.v39i2.32547. Disponível em: https://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32547. Acesso em: 31 maio. 2026.