Claim · model-written summary
Four-year mean corn grain yield showed a 1000 kg/ha advantage for till planting on sandy loam in northern Indiana.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- till plantinge0
- Outcome
- grain yieldse0
- Direction
- advantagee0
- Value
- 1000 kg/hae0
- Setting
- sandy loam (northern Indiana)e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn”
e0“Four‐year mean grain yields show a 1000 kg/ha advantage for till planting”
e1“on sandy loam (northern Indiana)”
Title
D. R. Griffith; J. V. Mannering; H. M. Galloway; et al. Agronomy Journal 1973. doi:10.2134/agronj1973.00021962006500020040x
Other claims from this paper (17)
- Observation Corn percent stand was 80% or higher with all tillage systems on sandy loam and loam soils.
- Intervention effect Chisel and rotary on silt loam, and wheel track, chisel, till and rotary on silty clay loam produced 65 to 70% stands, significantly below conventional at the 5% level.
- Intervention effect Soil temperature at 10 cm for the first 8 weeks after planting was 3.8 C lower with coulter than conventional planting in northern Indiana.
- Intervention effect Soil temperature at 10 cm for the first 8 weeks after planting was 2.7 C lower with coulter than conventional planting in southern Indiana.
- Observation Mean soil temperature for all systems was 3.7 C higher in southern Indiana.
- Intervention effect Corn growth at 8 weeks after planting was delayed with no-plow systems compared with conventional tillage in northern and eastern Indiana.
- Intervention effect Strip rotary and coulter systems had the slowest corn growth in northern and eastern Indiana.
- Intervention effect Coulter and strip rotary systems produced the fastest corn growth from 4 to 8 weeks after planting in southern Indiana.
- Intervention effect There was no significant variation in four-year mean grain yield among the other systems on sandy loam in northern Indiana.
- Mechanism The authors suggest the yield increase for till planting may have been due to ridging done at cultivating time.
- Intervention effect On poorly drained dark loam, yields from strip rotary and coulter systems were significantly lower (5% level) than yields from other systems.
- Intervention effect On poorly drained fine-textured soils in eastern Indiana, mean yields for all no-plow systems were lower than for plow systems.
- Mechanism The lower no-plow yields on poorly drained fine-textured soils were partly attributed to poor weed control.
- Intervention effect Four-year mean yields on the rolling silt loam in southern Indiana were not significantly different among systems, although differences within each of the 4 years were significant at the 5% level.
- Recommendation The authors conclude that with good management chisel, till, strip, rotary and coulter systems are adequately adapted on rolling high silt soils of southern Indiana and well-drained loam or sandy loam soils in central and northern Indiana.
- Recommendation The no-plow systems as used were not adapted on poorly drained, fine-textured soils.
- Recommendation Chiseling appeared competitive with conventional tillage on poorly drained fine-textured soils when stands were adequate.