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1 Departments of Crop Production and Protection, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria. 2 Agricultural Extension and Rural Development, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria. 3 Department of Agricultural Economics, Extension and Education, University of Botswana, Botswana College of Agriculture, Gaborone. 4 Department of Crop Science and Production, University of Botswana, Botswana College of Agriculture, Gaborone.

On-farm evaluation of the productivity of intercropping sunflower with arable crops among smallholder farms in Nigeria and Botswana