Effects of mid-season drainage on iron toxicity, rice yield, and water productivity in irrigated systems in the derived savannah agroecological zone of West Africa
Context: Increasing rice yield is crucial for meeting the demand of the fast-growing population in sub-Saharan Africa. Mid-season drainage can reduce iron toxicity, which is one of the major constraints to rice production in this region, and increase rice yield and water productivity. Objectives: The objectives of this study were to evaluate the effects of mid-season drainage on iron toxicity, rice yield, and water productivity and identify the factors that favor rice yield in the fields with mid-season drainage relative to continuous flooding.