Claim · model-written summary
AWD applied early in the season then flooded gave grain arsenic concentrations similar to or higher than the flooded control.
- Taxon
- Oryza sativa
Oryza sativae0 - Treatment
- AWD was practiced early in the growing season followed by flooding for remainder of seasone1
- Outcome
- grain As concentrationse4
- Direction
- similar or highere4
- Comparator
- flooded controle1
- Setting
- three locations over 2 yearse2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice (Oryza sativa), the staple crop for the largest number of people on earth”
e1“When AWD was practiced early in the growing season followed by flooding for remainder of season, similar yields as the flooded control were obtained”
e2“were evaluated at three locations over 2 years”
e4“although grain As concentrations were similar or higher”
Title
Reducing greenhouse gas emissions, water use, and grain arsenic levels in rice systems
Bruce A. Linquist; Merle M. Anders; Maria Arlene A. Adviento‐Borbe; et al. Global Change Biology 2014. doi:10.1111/gcb.12701
Other claims from this paper (12)
- Intervention effect Relative to the flooded control, AWD treatments reduced rice yield by less than 1 to 13%.
- Intervention effect Relative to the flooded control, AWD treatments improved water-use efficiency by 18 to 63%.
- Intervention effect Relative to the flooded control, AWD treatments reduced global warming potential from CH4 and N2O emissions by 45 to 90%.
- Intervention effect Relative to the flooded control, AWD treatments reduced grain arsenic concentrations by up to 64%.
- Association Rice yield declined as the severity of AWD increased, while the other benefits increased.
- Mechanism The reduction in GWP under AWD was mostly attributed to a reduction in CH4 emissions.
- Association Changes in N2 O emissions were minimal among the AWD and flooded treatments.
- Intervention effect AWD applied early in the season then flooded gave grain yields similar to the flooded control.
- Intervention effect AWD applied early in the season then flooded reduced water use by 18%.
- Intervention effect AWD applied early in the season then flooded reduced GWP by 45%.
- Intervention effect AWD applied early in the season then flooded reduced yield-scaled GWP by 45%.
- Recommendation The authors conclude that adoption of these AWD practices requires that they are economically attractive and adaptable to field scales.