Gs. Rogers et al., NITROGEN AND PHOSPHORUS REQUIREMENTS OF COTTON AND WHEAT UNDER CHANGING ATMOSPHERIC CO2 CONCENTRATIONS, Plant and soil, 156, 1993, pp. 231-234
The influence of increasing atmospheric CO2 on shoot growth, leaf nitr
ogen and phosphorus concentrations and carbohydrate composition was in
vestigated in cotton and wheat. Shoot dry weight of both species was g
enerally higher at elevated CO2, especially at high rates of available
soil N and P. Critical leaf N concentration was reduced but critical
P concentration was increased in both species at high CO2.