Effects of biochar amendment, CO₂ elevation and drought on leaf gas exchange, biomass production and water use efficiency in maize

Agriculture & Biology

• biochar 100%
• gas exchange 80%
• water use efficiency 79%
• biomass production 73%
• drought 65%
• corn 52%
• leaf area 43%
• biomass 41%
• specific leaf area 37%
• root shoot ratio 37%
• leaves 36%
• evapotranspiration 35%
• root water potential 27%
• physiology 26%
• irrigation 26%
• stomatal conductance 15%
• water stress 13%
• planting 13%
• chlorophyll 12%
• greenhouses 12%
• shoots 10%
• soil 8%