Fertilizer nutrient imbalance to limit food production in Africa
But because of the cost of phosphorus, that remains a challenge. "While much of the remaining phosphorus reserves are found in Morocco, on the African continent, we need to find better ways for African farmers to access this precious resource" says van der Velde.
The global phosphorus cycle is, besides nitrogen, also increasingly growing out of balance with carbon, the subject of another recent paper by the same group of researchers and a new European Research Council grant for continued research by IIASA and an international team of scientists.
"The change in the stoichiometry of nitrogen and carbon from rising atmospheric CO2 concentrations relative to phosphorus has no equivalent in the Earth's history and the impacts will go beyond the agricultural sector." says van der Velde.
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