Submitted by charlotte.schilt on Mon, 01/05/2015 - 10:22 Author(s) Wytze Marinus Date Sun, 01/04/2015 - 12:00 Keywords Northern Ghana, cowpea, relay cropping, soil fertility, cropping systems, sustainable agricultural intensification, cowpea-maize File MSc thesis WU 2014 Wytze Marinus.pdf