Claim · model-written summary
Corn yields were the same in 2-year and 4-year rotations
- Taxon
- corn
Zea mays subsp. mayse5 - Outcome
- corn yieldse5
- Direction
- no_changeinferrede5
- Comparator
- 2y and 4y rotationse5
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Within tillage strategies, corn yields were the same in 2y and 4y rotations”
Title
Sharon L. Weyers; David W. Archer; Frank Forcella; et al. Renewable Agriculture and Food Systems 2017. doi:10.1017/s1742170517000084
Other claims from this paper (10)
- Intervention effect Corn yields were 34% or more greater under conventional than strip tillage
- Intervention effect Soybean yields were 34% or more greater under conventional than strip tillage
- Intervention effect Wheat yields were 34% or more greater under conventional than strip tillage
- Intervention effect Alfalfa yields were the same under conventional and strip tillage
- Intervention effect Soybean yields under strip tillage were 29% lower in fertilized 4-year than 2-year rotation
- Intervention effect Total weed seed density increased more under strip than conventional tillage over the first 4 years
- Association Corn yields were negatively correlated with weed seed density in fertilized conventional tillage systems
- Association Soybean yields were negatively correlated with weed seed density in the fertilized ST-2y system
- Intervention effect Overall productivity of fertilized ST-2y and CT-4y systems was within 70% of fertilized CT-2y
- Mechanism Strip tillage compromised productivity, partly because of insufficient weed control and partly because of reduced nutrient availability