Ghana Maize (IMAGE) University of Nebraska-Lincoln Caption A cornfield in Ghana exhibits signs of water stress and nutrient deficiency. New research from the University of Nebraska-Lincoln and its collaborators has found that sub-Saharan Africa will struggle to meet its 2050 grain demands even if it maximizes the yields of corn and four other cereal crops. Credit Courtesy Marloes van Loon Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.