Participatory on-farm evaluation of improved legume-cereals cropping systems for crop-livestock farmers: Maize-double cowpea in Northern Guinea Savanna Zone of Nigeria
H. A. Ajeigbe1*, B. B. Singh2, J. O. Adeosun3 and I. E. Ezeaku1
1International Institute of Tropical Agriculture (IITA), Kano Station, P. M. B. 3112, Kano, Nigeria.
2Department of Soil and Crop Sciences R.M. 428 Heep Building Texas A&M University College Station, Texas 77843, USA.
3National Agricultural Extension, Research and Liason Services, Ahmadu Bello University, Zaria, Nigeria.
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