Cowpea-maize relay cropping. A method for sustainable agricultural intensification in northern Ghana?

Wytze Marinus did his MSc thesis research in Karaga district, part of the Northern Region and in Kassena Nankana district, Upper East Region, food insecure districts where considerable population growth rates will lead to increased demand for food production and higher pressure on agricultural lands. A clear need exists for sustainably increasing crop yields in this area where maize is the most important cereal and one of the most important staple crops. He focussed on cowpea in the cowpea-maize relay cropping.