Unravelling the links between plant transpiration, soil water and nitrate movement: impact of high atmospheric CO2 and irrigation strategy.

点击翻译按钮获取中文摘要

Australia's serious environmental problems, soil salinity and acidity, may be greatly affected by rising atmospheric CO2 and irrigation strategies. This will occur if the movement of soil water and nitrate changes with transpiration. We will generate different transpiration rates by varying atmospheric CO2 above pastures and irrigation strategies in vineyards. The commercial partner's newly developed soil sensors allow, for the first time, simultaneous 3-D measurement of soil water and nitrate in real-time. The results will answer long-standing questions about impacts of transpiration rates on plant nitrogen uptake and generate valuable new knowledge for sustainable management of pastures and horticultural crops.