Lança Rodrígues, J., Gamero, C., Costa Fernándes, J., & Mirás-Avalos, J. (2009). Effects of different soil tillage systems and coverages on soybean crop in the Botucatu Region in Brazil. Spanish Journal of Agricultural Research, 7(1), 173-180. https://doi.org/10.5424/sjar/2009071-409