ERUOLA, A.O., BELLO, N. J., G.C. UFOEGBUNE, MAKINDE, A.A, Dr..
 Application of rainfall- potential evapotranspiration model for determining optimum planting date of yam (Dioscorea rotundata) in a tropical wet-and-dry climate.
<strong>Global Journal of Science Frontier Research</strong>, [S.l.], v. 12, n. 5-D, may 2012.
ISSN 2249-4626.
Available at: &lt;<a href="https://journalofscience.org/index.php/GJSFR/article/view/515" target="_new">https://journalofscience.org/index.php/GJSFR/article/view/515</a>&gt;. Date accessed: 24 may 2022.