Grez, R., Gerding, V. and Union, F. (1992) “Ashes of wood-burning ovens. II Industrial residue useful as an amendmer for improving soil fertility”, Revista Bosque, 13(2), pp. 39–44. Available at: https://revistabosque.org/index.php/bosque/article/view/1403 (Accessed: 23 October 2024).