Arias Arredondo, AlbertoLopez Rodríguez, MelinaCruz Luis, Juancarlos AlejandroRequena Rojas, Edilson JimmyCcopi Trucios, DennisPizarro Carcausto, Samuel EdwinSolórzano Acosta, Richard Andi2026-04-082026-04-082026-03-20Arias-Arredondo, A., Lopez-Rodriguez, M., Cruz-Luis, J., Requena-Rojas, E., Ccopi, D., Pizarro, S., & Solórzano-Acosta, R. (2026). Evaluation of nutrient extraction and uptake by forage grasses under high Andean mountain conditions in Peru. Asian Journal of Agriculture and Biology, e2025252. https://doi.org/10.35495/ajab.2025.2522307-3276http://hdl.handle.net/20.500.12955/3086This study evaluated nutrient extraction and uptake in native forage grasses (Festuca dolichophylla and Calamagrostis chrysantha) and improved species (Lolium perenne and Dactylis glomerata) at 4,100 m a.s.l. in the Peruvian Andes using a completely randomized design. Results revealed significant interspecific variability in nutrient accumulation. Dactylis glomerata showed superior macronutrient accumulation, particularly Mg, while Lolium perenne achieved highest K extraction (0.07 t ha⁻¹) and biomass production. Native species demonstrated lower nutritional demands: Festuca dolichophylla reached maximum dry matter production (6 t ha⁻¹), while Calamagrostis chrysantha showed elevated Ca and P concentrations. Correlation analysis revealed strong positive associations among Ca, Mg, Cu, Fe, Mn, and Zn (r = 0.7-1.0), indicating coordinated uptake mechanisms. Nickel exhibited negative correlations with P (r = -0.6) and K (r = -0.5). Improved species require intensive fertilization, while native species offer sustainable alternatives for low-input high-altitude systems.application/pdfenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Forage grassesNutrient uptakeMountain grasslandsSoil fertilizationGramíneas forrajerasAbsorción de nutrientesPastizales de montañaFertilización del sueloinfo:eu-repo/semantics/articlehttps://purl.org/pe-repo/ocde/ford#4.01.06https://doi.org/10.35495/ajab.2025.252Pastizales; Pastures; Altitud; Altitude; Festuca; Lolium perenne; Dactylis glomerata