Effects of nutrient (NPK) supply on faba bean response to elevated atmospheric CO2

Authors

  • J. Wolf

DOI:

https://doi.org/10.18174/njas.v44i3.543

Abstract

In greenhouse pot experiments, Vicia faba cv. Minica was grown at ambient (315 ppm) or increased CO2 concentrations (695 ppm) with sufficient or 90 or 70% of required N, P and K. Doubling of atmospheric CO2 resulted in a >100% increase in total yield. This CO2 effect disappeared rapidly with increasing N, P or K shortage. Doubling of atmospheric CO2 resulted in no change in minimum N concentration and no change or a slight decrease in minimum P concentration in crop residues.

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Published

1996-09-01

Issue

Vol. 44 No. 3 (1996)

Section

Papers

License

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