Claim · model-written summary
In 1996, inorganic nitrogen significantly increased corn yield after vetch with 120 kg/ha nitrogen.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- addition of inorganic Ne0
- Outcome
- corn yieldse0
- Direction
- increasede0
- Value
- 120 kg/hae0
- Comparator
- vetche0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1996, vetch N contents only equaled 120 kg/ha, and corn yields were significantly increased by addition of inorganic N”
Title
173 Effects of Cover Crops and Tillage on Sweet Corn Production
Gary R. Cline; Anthony F. Silvernail HortScience 1999. doi:10.21273/hortsci.34.3.472a
Other claims from this paper (11)
- Observation Vetch and mixed cover crops had shoot nitrogen contents of 100 to 150 kg/ha.
- Observation Rye cover crop nitrogen content was usually below 50 kg/ha.
- Intervention effect In 1994 and 1995, inorganic nitrogen did not significantly change corn yield after vetch with 150 kg/ha shoot nitrogen.
- Observation Supplemental nitrogen was needed for maximum corn yield after mixed and rye cover crops in all years.
- Observation Corn foliar nitrogen and available soil nitrogen agreed with yield results.
- Intervention effect No-tillage did not significantly affect corn yield after vetch.
- Intervention effect No-till corn yield was reduced after rye in 1995 because of lower plant population density.
- Intervention effect No-till corn yield was reduced after mixed cover crop in 1995 and 1996 because of lower plant population density.
- Recommendation Vetch with at least 150 kg/ha nitrogen can adequately supply nitrogen to sweet corn.
- Recommendation Sweet corn after rye or vetch and rye mix should receive additional nitrogen for optimal yields.
- Mechanism Nitrogen in the mixed cover crop was probably immobilized during rye decomposition.