Maize response to free air CO2 enrichment under ample and restricted water supply: field experimental data and output of a process-based hydrological plant growth model


  • Remy Manderscheid Thünen-Institute of Biodiversity, Braunschweig
  • Martin Erbs Deutsche Agrarforschungsallianz (DAFA), German Agricultural Research Alliance, c/o Thünen Institute, Braunschweig, Germany
  • Juliane Kellner Senckenberg Biodiversity and Climate Research Centre BiK-F, Frankfurt/Main, Germany
  • Liane Hüther Institute of Animal Nutrition, Friedrich-Loeffler-Institute, Federal Research Institute for Animal Health, Braunschweig, Germany
  • Philipp Kraft Research Centre for BioSystems, Land Use and Nutrition (iFZ), Institute for Landscape Ecology and Resources Management, Justus Liebig University Giessen, Giessen, Germany
  • Herbert Wieser -Institute for Food Systems Biology at the Technical University of Munich, Freising, Germany
  • Hans-Joachim Weigel



This paper contains data from a two year FACE experiment with maize (Zea mays L., cv. ‘Romario’) investigating the interaction of two CO2 concentrations (378, 550 ppm) and two levels of water supply (sufficient: wet, limited: dry) on crop growth and plant composition. In the second year soil cover was also varied to test whether mitigation of evaporation by straw mulch increases the CO2 effect on water use efficiency. The datasets assembled herein contain data on weather, management, soil condition, soil moisture, phenology, dry weights and N concentrations of the plant (leaves, stems, cobs), green leaf area index, stem reserves, final yield and quality-related traits in the total plant and grains. Most of the experimental findings have already been published in scientific journals. Moreover, the data have been used in two crop modeling studies, and simulation results (on soil moisture, transpiration, evaporation and biomass) of one of these studies are also shown here.