A study by the International Institute for Applied Systems Analysis, IIASA, has revealed that a growing imbalance between phosphorus and nitrogen fertiliser use in Africa could lead to crop yield reductions of nearly 30 per cent by 2050.
IIASA also stated that the under-use of phosphorus-based fertilisers in Africa currently contributes to a growing yield gap - the difference between how much crops could produce in ideal circumstances compared to actual yields.
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