Urea additions and defoliation affect plant responses to elevated CO2 in a C3 grass from Yellowstone National Park

Abstract

A common grass from Yellowstone National Park, Stipa occidentalis, was grown in a factorial experiment to determine if its response to the direct effects of elevated CO2 would be affected by defoliation, and urea additions simulating the N in a urine hit. Plants were grown in tall pots (to mimic rooting depth in the field) in growth chambers under elevated… (More)
DOI: 10.1007/BF00334657

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