1. Agronet. (2019). Sistema de Estadísticas Agropecuarias [base de datos]. http://www.agronet.gov.co/estadistica/Paginas/home.aspx
2. Agronet. (2021). Sistema de Estadísticas Agropecuarias [base de datos]. http://www.agronet.gov.co/estadistica/Paginas/home.aspx
3. Barea, J. M., El-Atrach, F., & Azcón, R. (1991). The role of VA mycorrhizas in improving plant N acquisition from soil as assessed with 15ºN. En C. Flitton (Ed.), The use of stable isotopes in plant nutrition, soil fertility and environmental studies (pp. 677-808). Joint IAEA-FAO Division.
4. Bi, Y. L., Li, X. L., Christie, P., Hu, Z. Q., & Wong, M. H. (2003). Growth and nutrient uptake of arbuscular mycorrhizal maize in different depths of soil overlying coal fly ash. Chemosphere, 50(16), 863-869. https://doi.org/10.1016/S0045-6535(02)00231-X
5. A critical review on the role of mycorrhizal fungi in the uptake of phosphorus by plant;Bolan;Plant Soil,1991