Rice yields and water use under alternate wetting and drying irrigation: A meta-analysis

Rice systems provide a major source of calories for more than half of the world’s population; however, they also use more water than other major crops. Alternate wetting and drying (AWD) is an irrigation practice (introduction of unsaturated soil conditions during the growing season) that can reduce water inputs in rice, yet it has not been widely adopted, in part, due to the potential for reduced yields. We conducted a meta-analysis to: 1) quantify the effect of AWD on rice yields and water use; and 2) to identify soil properties and management practices that favor AWD yields and promote low water use relative to continuous flooding (CF- control). We analyzed 56 studies with 528 side-by-side comparisons of…

• CD
  Coordenação de Aperfeiçoamento de Pessoal de Nível Superior