Claim · model-written summary
Delaying cover kill and corn planting until late April or mid-May increased corn nitrogen content.
- Taxon
- Corn
Zea mays subsp. mayse0 - Treatment
- cover kill and corn planting were delayed until late April or mid‐Maye0
- Outcome
- Corn N contente0
- Direction
- greatere0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn N content was greater if cover kill and corn planting were delayed until late April or mid‐May.”
Title
Kill Date of Vetch, Rye, and a Vetch–Rye Mixture: I. Cover Crop and Corn Nitrogen
Andrew J. Clark; Alvin M. Decker; John J. Meisinger; et al. Agronomy Journal 1997. doi:10.2134/agronj1997.00021962008900030010x
Other claims from this paper (9)
- Observation The vetch–rye mixture contained at least as much nitrogen as vetch and more than rye.
- Intervention effect Delaying cover-crop kill increased biomass and nitrogen content.
- Observation Vetch and its rye mixture accumulated about 2 kg nitrogen per hectare per day.
- Observation Topgrowth nitrogen accumulation ranged from 144 to 203 kg per hectare.
- Observation The greatest rye nitrogen accumulation was 51 kg per hectare.
- Association Corn nitrogen content ranged from 37 to 293 kg per hectare and depended significantly on fertilizer rate.
- Intervention effect At the same fertilizer rate, corn nitrogen content was greater following vetch or vetch–rye than rye or no cover.
- Observation Corn fertilizer nitrogen requirements were greatest after rye or no cover, intermediate after the mixture, and lowest after vetch.
- Recommendation The authors conclude cover-crop choice and kill date can conserve nitrogen, supply it, or do both.