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CO2 and soil water potential as regulators of the growth and N fraction derived from fixation of a legume in tallgrass prairie communities

Polley, H. W., H. P. Collins, L. G. Reichmann and P. A. Fay . 2016.

Abstract

CO2 enrichment may increase N input to ecosystems by increasing N2 fixation, but the fixation-CO2 response depends on factors such as soil water availability that are influenced by soil properties.