Agronomic and economic responses of the potato (Solanum tuberosum subsp. andigena) to differential fertilization in four environments in Nariño, Colombia

Due to the importance of potato cultivation in Nariño, Colombia and the high participation of fertilizer in production costs (25%), as well as the great variability of soils in the region, we evaluated three fertilizer levels for six cultivars of Solanum tuberosum subsp. andigena in four homogeneous...