Matolino Zimba checks on the emerging maize crop, which has been covered in crop residue to conserve moisture, at the field school in Tiyese, Malawi. (Photo: Emma Orchardson/CIMMYT)
Matolino Zimba checks on the emerging maize crop, which has been covered in crop residue to conserve moisture, at the field school in Tiyese, Malawi. (Photo: Emma Orchardson/CIMMYT)
