Murillo, J. M., F. Moreno, I. F. Girón, and M. I. Oblitas. “Conservation Tillage: Long Term Effect on Soil and Crops under Rainfed Conditions in South-West Spain (Western Andalusia)”. Spanish Journal of Agricultural Research 2, no. 1 (March 1, 2004): 35-43. Accessed April 29, 2024. https://sjar.revistas.csic.es/index.php/sjar/article/view/58.