79-4 Achieving Multiple Sustainable Intensification Goals through Alternate Wetting and Drying in Rice Systems.

See more from this Division: ASA Section: Environmental Quality
See more from this Session: Management Practices and Land-Use Impact on Global Warming Potential and Greenhouse Gas Intensity

Monday, November 16, 2015: 1:45 PM
Minneapolis Convention Center, 102 E

Bruce Linquist, Gabriel LaHue and Daniela Carrijo, Department of Plant Sciences, University of California-Davis, Davis, CA
Abstract:
Rice provides more calories to the human diet than any other crop. Rice systems are also major contributors to GHG emissions – in particular due to high CH4 emissions. Alternate-wetting-and-drying (AWD) practices introduce aerobic cycles into the rice growing season and can reduce CH4 emissions by over 90%. In order to ensure N2O emissions remain low, drying cycles need to be closely linked with fertilizer N management. These systems can also reduce water use in rice by up to 30% and reduce arsenic uptake by rice. How to achieve these goals, while also maintain rice yields will be discussed.

See more from this Division: ASA Section: Environmental Quality
See more from this Session: Management Practices and Land-Use Impact on Global Warming Potential and Greenhouse Gas Intensity