An experiment in secondary forests in the Democratic Republic of the Congo finds that calcium, an overlooked soil nutrient, is scarcer than phosphorus, and represents a potentially greater limitation on tropical forest growth.
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Vallicrosa, H. Beyond nitrogen and phosphorus. Nat Ecol Evol 6, 1056–1057 (2022). https://doi.org/10.1038/s41559-022-01788-x
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DOI: https://doi.org/10.1038/s41559-022-01788-x
