Claim · model-written summary
Most other cropping systems had land equivalent ratios below 1.
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The maize–bean system, which had the highest proportion of bean plants, had LERs >1.65 while most other systems had LERs <1”
Title
J. M. Songa; N. Jiang; F. Schulthess; et al. Journal of Applied Entomology 2007. doi:10.1111/j.1439-0418.2006.01116.x
Other claims from this paper (6)
- Intervention effect Mixed systems containing the non-host bean reduced stemborer pest densities more efficiently than systems with millet or sorghum only.
- Intervention effect Parasitism of stemborers was higher in diversified systems than in monocrops.
- Mechanism The higher parasitism in diversified systems was attributed to density-dependent effects rather than to superior suitability of such systems to parasitoids.
- Observation The maize-bean system, with the highest proportion of bean plants, had land equivalent ratios above 1.65.
- Recommendation Mixed cropping with several cereal species offers little advantage in terms of yield loss abatement due to stemborers and land use efficiency.
- Recommendation Including drought-tolerant crops such as sorghum and millet in the system stabilizes food security in drought-prone areas such as eastern Kenya.