Claim · model-written summary
Semiperennial rotation reduced maize yield variability from 22% to 13% relative to monoculture.
- Treatment
- SP rotation systems at half-fertilizer ratese0
- Outcome
- yield variabilitye0
- Direction
- reducede0
- Value
- 22% to 13%e0
- Comparator
- monoculturee0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SP rotation systems at half-fertilizer rates produced equivalent quantities of grain, on a more stable basis (yield variability reduced from 22% to 13%) compared with monoculture.”
t0“monoculture maize with legume-diversified maize”
Title
Biodiversity can support a greener revolution in Africa
Sieglinde S. Snapp; Malcolm J. Blackie; Robert A. Gilbert; et al. Proceedings of the National Academy of Sciences 2010. doi:10.1073/pnas.1007199107
Other claims from this paper (7)
- Intervention effect Modest fertilizer intensification doubled grain yield relative to monoculture maize.
- Intervention effect Semiperennial rotation at half fertilizer rates produced grain yields equivalent to monoculture.
- Intervention effect Semiperennial rotations provided twofold superior returns across sites.
- Intervention effect Annual legume diversification of maize provided more modest returns.
- Association Profitability and farmer preference matched across sites.
- Recommendation The authors conclude that crop diversification can work at countrywide scale in Africa.
- Recommendation The authors conclude shrubby grain legumes can enhance environmental and food security.