Volverás-Mambuscay, Belisario, José Manuel Campo-Quesada, José Domingo Merchancano-Rosero, and Juan Fernando López-Rendón. 2020. “Physical Soil Fertility in the Sowing System in Wachado on Nariño, Colombia”. Agronomía Mesoamericana 31 (3):743-60. https://doi.org/10.15517/am.v31i3.39233.