Physical and chemical analysis of agricultural soils in Southern Manabí and their relationship with crops (Original). Roca. Scientific-educational publication of Granma province., [S. l.], v. 18, n. 3, p. 207–228, 2022. Disponível em: https://revistas.udg.co.cu/index.php/roca/article/view/3457. Acesso em: 10 aug. 2026.