Response of roselle (Hibiscus sabdariffa L.) to rates of inorganic and farmyard fertilizers in the Sudan savanna ecological zone of Nigeria
C. I. Oyewole1* and M. Mera2
1Department of Crop Production, Faculty of Agriculture, Kogi State University,
P. M. B. 1008, Anyigba, Kogi State, Nigeria.
2Kebbi State Agricultural Development Authority, Kebbi, Kebbi State, Nigeria.
Email: [email protected]