Claim · model-written summary
Most crops had large yield differences after 1960.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Verbatim
e1“Large yield differences were observed after 1960 for most of the crops studied”
Title
Fractal Description of Temporal Yield Variability of 10 Crops in the United States
Bahman Eghball; James F. Power Agronomy Journal 1995. doi:10.2134/agronj1995.00021962008700020003x
Other claims from this paper (9)
- Observation Soybean yield rose about twofold from 1930 to 1990.
- Observation Oat yield rose about twofold.
- Observation Barley yield rose about twofold.
- Observation Maize yield rose about sixfold.
- Observation Yield fractal dimensions ranged from 1.20 to 1.47.
- Observation Rice had the least short-term yield variation.
- Observation Oat and soybean had the greatest short-term yield variation.
- Observation Average crop yield varied less over time than soil parameters varied spatially.
- Method / resource Fractal analysis was judged useful for quantifying temporal yield variation.