Claim · model-written summary
After 10 years, grain yields were 7.5 to 8.6% higher under no-till when stover was removed compared with no stover removal.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- NT when stover was removede1
- Outcome
- grain yieldse1
- Direction
- highere1
- Value
- 7.5 to 8.6%e1
- Comparator
- no stover removale1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Irrigated Continuous Corn”
e1“mean grain yields were 7.5 to 8.6% higher for NT when stover was removed compared with no stover removal”
Title
Tillage and Residue Management Effects on Soil Carbon and Nitrogen Under Irrigated Continuous Corn
M.R. Schmer; V.L. Jin; B.J. Wienhold; et al. Soil Science Society of America Journal 2014. doi:10.2136/sssaj2014.04.0166
Other claims from this paper (9)
- Intervention effect Under conventional disk tillage grain yields were similar across all stover removal treatments.
- Observation Turnover of soil organic C occurred, with C3-derived carbon replaced by C4-derived carbon in the soil profile.
- Observation Total soil organic C and N stocks changed mainly in surface soils.
- Observation No detectable cumulative changes in total soil organic C and N stocks occurred at 0 to 150 cm.
- Intervention effect Soil organic C declined after 10 years under conventional disk tillage at 0 to 15 cm.
- Intervention effect Soil organic C at 15 to 30 cm was affected by residue management.
- Intervention effect Long-term no-till ameliorated medium stover removal effects by maintaining near-surface soil organic C levels.
- Intervention effect Total soil N was greater with no stover removal than with high stover removal at 0 to 15 cm.
- Recommendation Results support the need to evaluate soil organic C cycling processes below near-surface soil layers.