Authors
Aisha Simbiat Hussaini
Ahmadu Bello University, Department of Agricultural Economics, Zaria, Nigeria
Yusuf Usman Oladimeji
Ahmadu Bello University, Department of Agricultural Economics, Zaria, Nigeria
Tahirou Abdoulaye
International Institute of Tropical Agriculture, Bamako, Mali
Muhyideen Oyekunle
Ahmadu Bello University, Institute for Agricultural Research, Department of Plant Science, Zaria, Nigeria
Zakariya Saminu
Ahmadu Bello University, Institute for Agricultural Research, Department of Plant Science, Zaria, Nigeria