Claim · model-written summary
Corn yields were often lowest after annual ryegrass.
- Taxon
- Corn
Zea mays subsp. mayse1 - Treatment
- annual ryegrasse0
- Outcome
- Corn yieldse1
- Direction
- loweste0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“often the lowest following annual ryegrass”
e1“Corn yields”
Title
Soil Nitrate Accumulation and Corn Response to Preceding Small‐Grain Fertilization and Cover Crops
Tony J. Vyn; Ken J. Janovicek; Murray H. Miller; et al. Agronomy Journal 1999. doi:10.2134/agronj1999.00021962009100010004x
Other claims from this paper (8)
- Intervention effect More N fertilizer on the previous small-grain crop rarely increased spring soil nitrate or corn yield.
- Intervention effect Spring soil nitrate increases after annual ryegrass did not differ substantially from no cover crop.
- Intervention effect Spring soil nitrate increases after oilseed radish did not differ substantially from no cover crop.
- Intervention effect Red clover produced at least 2.8 times greater spring soil nitrate increases than no cover crop.
- Intervention effect Corn biomass N at anthesis after annual ryegrass was 25.6 kg ha −1 less than without cover crop.
- Intervention effect Corn biomass N at anthesis after red clover was 40.4 kg ha −1 greater than without cover crop.
- Intervention effect Corn yields were consistently highest after red clover.
- Association Corn yield response correlated positively with June soil nitrate concentration.