Claim · model-written summary
Raised beds increased maize yield by 8% relative to laser-levelled flat plots.
- Treatment
- Raised bedse0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 8% (0.5 t ha−1)e0
- Comparator
- laser levelled flat plotse0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Raised beds significantly increased yield of maize by 8% (0.5 t ha−1), reduced irrigation amount by 20% (40 mm) and increased WPi by 34% (1.0 kg m−3) in comparison with the laser levelled flat plots”
Title
Krishna Prasad Devkota; Sudhir Yadav; E. Humphreys; et al. Agricultural Water Management 2021. doi:10.1016/j.agwat.2021.107036
Other claims from this paper (14)
- Intervention effect Zero-gradient laser levelling significantly reduced irrigation amount in flat-grown crops compared with farmer levelling, except wheat in the maize-wheat system.
- Intervention effect Zero-gradient laser levelling significantly increased irrigation water productivity in flat-grown crops compared with farmer levelling, except wheat in the maize-wheat system.
- Intervention effect Zero-gradient levelling showed a nonsignificant trend toward higher yield than farmer levelling across crops and systems.
- Intervention effect In rice-wheat systems, 0.1% gradient levelling gave no to marginal benefit in irrigation amount and water productivity relative to 0% gradient.
- Intervention effect In rice-wheat systems, zero-gradient laser levelling substantially reduced irrigation amount relative to farmer levelling.
- Intervention effect In rice-wheat systems, zero-gradient levelling increased irrigation water productivity in both crops by about 40%.
- Intervention effect Yield in the rice-wheat system was unaffected by zero-gradient laser levelling.
- Observation Rice grown under farmer levelling was not profitable.
- Intervention effect Zero-gradient lasering significantly increased gross margin for rice, wheat and the rice-wheat system.
- Intervention effect Zero-gradient flat levelling significantly increased irrigation water productivity of both crops in the maize-wheat system relative to farmer levelling.
- Intervention effect Raised beds reduced maize irrigation amount by 20% relative to laser-levelled flat plots.
- Intervention effect Raised beds increased maize irrigation water productivity by 34% relative to laser-levelled flat plots.
- Intervention effect Maize-wheat system gross margin on beds was 17–20% higher than farmer levelling.
- Intervention effect Beds on a 0.1% gradient had significantly higher gross margin than flat plots at either gradient.