El nivel umbral de carbono orgánico en suelos cultivados es de 1 a 2% aproximadamente. La actividad agrícola en el valle del Mantaro es intensiva y ocasiona la pérdida de carbono orgánico y bajos aportes de biomasa vegetal por el monocultivo. En ese sentido, el presente trabajo tiene como objetivo relacionar el porcentaje de colonización de micorrizas arbusculares en cultivo asociado de papa var. Revolución y haba, y el carbono orgánico del suelo. La investigación se realizó en la Estación Experimental Agraria Santa Ana, Huancayo, Junín, bajo invernadero sobre los 3296 msnm. Se utilizó DCA con seis tratamientos y tres repeticiones: T0 (papa y 0 g micorrizas), T1(papa + haba y 0 g de micorrizas), T2 (papa + haba y 2 g de micorrizas), T3 (papa + haba y 4 g de micorrizas), T4 (papa + haba y 6 g de micorrizas) y T5 (papa + haba y 8 g de micorrizas). Los parámetros evaluados fuer...

Most Andean lakes and lagoons are used as reservoirs to manage hydropower generation and cropland irrigation, which, in turn, alters river flow patterns through processes of storage and discharge. The Carhuacocha and Vichecocha lagoons, fed by glaciers, are important aquatic ecosystems regulated by dams. These dams increase the flow of the Mantaro River during the dry season, supporting both energy production and irrigation for croplands. Water quality in the Carhuacocha and Vichecocha lagoons was assessed between storage and discharge events by using the Canadian Council of Ministers of the Environment Water Quality Index (CCME WQI) and multivariate statistical methods. The quality of both lagoons is excellent during the storage period; however, it decreases when they are discharged during the dry season. The most sensitive parameters are pH, dissolved oxygen (DO), and biochemical oxyge...

Most Andean lakes and lagoons are used as reservoirs to manage hydropower generation and cropland irrigation, which, in turn, alters river flow patterns through processes of storage and discharge. The Carhuacocha and Vichecocha lagoons, fed by glaciers, are important aquatic ecosystems regulated by dams. These dams increase the flow of the Mantaro River during the dry season, supporting both energy production and irrigation for croplands. Water quality in the Carhuacocha and Vichecocha lagoons was assessed between storage and discharge events by using the Canadian Council of Ministers of the Environment Water Quality Index (CCME WQI) and multivariate statistical methods. The quality of both lagoons is excellent during the storage period; however, it decreases when they are discharged during the dry season. The most sensitive parameters are pH, dissolved oxygen (DO), and biochemical oxyge...