Córdova, C. .; Martínez, A. M. .; Machuca, Ángela .; Zagal, . E. .; Fischer, S. .; Betancur, M. . SOIL SULFUR AND NITROGEN AVAILABILITY IMPROVES ROOT BIOMASS GROWTH OF RYEGRASS (Lolium Multiflorum L.). chileanjaas 2020, 36, 151-160.