In 2006, the Abuja declaration brought together states of the African Union to collectively recommend an increase in fertilizer nitrogen (N) use from 8 kg ha−1 to 50 kg ha−1 by 2015 to help enable sub-Saharan Africa (SSA) to achieve food sufficiency and eradicate poverty while improving the soil fertility.
Click here for original story, A critical assessment of the 2006 Abuja Declaration for nitrogen use in Sub-Saharan Africa
Source: Phys.org