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Phosphorus status determines biomass response to elevated CO2 in a legume: C4 grass community

Edwards, Everard; McCaffery, Stephanie; Evans, John


Thirty-six mesocosms, each containing a two-species community of Trifolium repens (C3 legume) and Stenotaphrum secundatum (C4 grass), were grown in sand with three nutrient regimes, zero N low P, zero N high P and supplied N high P, under ambient (aCO2) and twice ambient CO2 (eCO2) for 15 months in two greenhouses. Aboveground annual production in the P limited mesocosms did not respond to eCO2 and was reduced by 50% relative to mesocosms with an adequate P supply, where dry-matter production...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Global Change Biology
DOI: 10.1111/j.1365-2486.2005.1049.x


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