Exploring the Impact of Nitrogen Sources on Yield

• Nitrogen (N) constitutes 90% of the applied mineral fertilizers to boost crop productivity. In sub-Saharan Africa (SSA) N inputs are as low as 10 kg N ha-1.

• The low N inputs have led to depletion of soil fertility and large yield gaps in cropping systems. The Nitrogen Use efficiency is very low due to insufficient application of the required N.