1.
Cowpea Yield as Affected by Level and Time of Mineral Phosphorus Fertilizer Application in the Guinea Savanna Agro-Ecological Zone of Ghana. GJSFR [Internet]. 2014 Sep. 15 [cited 2026 Oct. 23];14(36):13-7. Available from: https://journalofscience.org/index.php/GJSFR/article/view/