Mera, J.L.A., Vinces, L.M.G., Murillo, D.M.S. and Chilán, G.R.M. 2021. The monoculture of corn (zea mayz) and its impact on fertility soil. International journal of chemical & material sciences. 4, 1 (Jun. 2021), 7-12. DOI:https://doi.org/10.31295/ijcms.v4n1.1649.