Agyarko, K.; Dapaah, H. K.; Buah, S.; Frimpong, K. A.
(University of Cape Coast, 2012)
The impact of sole poultry manure (6t PM ha-1), sole NPK (200kg NPK ha-1) and their combinations (3t PM + 100kg NPK ha-1 and 1.5t PM + 150kg NPK ha-1) on sweet potato yield parameters and soil nutrients was assessed at ...