Gómez S., Manuel Iván, Stanislav Magnitskiy, and Luis Ernesto Rodríguez. 2017. “Diagnostics of K+ and NO3- in sap to determine nutritional status in potato (Solanum tuberosum L. subsp. andigena)”. Revista Colombiana de Ciencias Hortícolas 11 (1):133-42. https://doi.org/10.17584/rcch.2017v11i1.6132.