At the field school in Tiyese, Malawi, farmers are using two adjacent maize plots to compare the effects of leaving crop residue on their field. (Photo: Emma Orchardson/CIMMYT)
At the field school in Tiyese, Malawi, farmers are using two adjacent maize plots to compare the effects of leaving crop residue on their field. (Photo: Emma Orchardson/CIMMYT)
