Does nitrogen nutrition restrict the CO 2 response of fertile grassland lacking legumes? (original) (raw)

Oecologia, 1997

Abstract

The extent of the response of plant growth to atmospheric CO2 enrichment depends on the availability of resources other than CO2. An important growth-limiting resource under field conditions is nitrogen (N). N may, therefore, influence the CO2 response of plants. The effect of elevated CO2 (60 Pa) partial pressure (pCO2) on the N nutrition of field-grown Lolium perenne swards, cultivated

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