Annual corn production doubled from 26 to 52 bushels per acre since 1930.

Claim · model-written summary

Annual corn production doubled from 26 to 52 bushels per acre since 1930.

Taxon

cornZea mays subsp. mayse0

Outcome

Annual productione0

Direction

doublede0

Value

26 to 52 bushels per acree0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim

e0

“Annual production of the principal U. S. food crop, corn, has doubled since 1930, from 26 to 52 bushels per acre.”