Effect of rice cultivar on greenhouse-gas emissions from rice–fish co-culture

Abstract

In aquaculture, co-culturing rice with fish may mitigate greenhouse-gas emissions. In this study, co-culture of four rice cultivars in a laboratory-scale rice–fish system reduced CH and NO emissions relative to fish monoculture. Differences in CH and NO emissions among rice cultivars primarily stem from the differential effects of rice plants on plant-mediated CH transport, CH oxidation and nitrogen absorption.