Claim · model-written summary
Ridging and tillage did not affect grain yield in greenhouse or field studies.
- Treatment
- ridging or tillage treatmentse0
- Outcome
- grain yielde0
- Direction
- not affectede0
- Setting
- greenhouse or fielde0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Shoot dry weight and grain yield were not affected by ridging or tillage treatments in the greenhouse or field.”
t0“Maize Nodal Root Response”
Title
Maize Nodal Root Response to Soil Ridging and Three Tillage Systems
Andrew L. Thomas; Thomas C. Kaspar Agronomy Journal 1995. doi:10.2134/agronj1995.00021962008700050012x
Other claims from this paper (10)
- Intervention effect Greenhouse ridging increased functional nodal roots from 38.4 to 50.0, a 30% increase.
- Intervention effect Ridging significantly increased the lengths of soil-covered internodes 6 and 7 in the greenhouse.
- Intervention effect Ridging increased average internode 7 length from 64 mm to 101 mm.
- Intervention effect Greater ridge height increased internode length in controlled greenhouse experiments, but not in the field.
- Intervention effect Greater ridge height increased nodal root number in controlled greenhouse experiments, but not in the field.
- Intervention effect Ridge-till produced significantly more functional nodal roots than no-till in the field in 1992 and 1993.
- Intervention effect Ridge-till produced significantly more functional nodal roots than chisel-plow in the field in 1992.
- Intervention effect No-till plants had 53.1 functional nodal roots in 1992 versus 58.7 under ridge-till.
- Intervention effect No-till plants had 46.0 functional nodal roots in 1993 versus 49.1 under ridge-till.
- Intervention effect Ridging and tillage did not affect shoot dry weight in greenhouse or field studies.