Abstract
Abstract Cover crop grazing can be used as a strategy to meet nutritional requirements for livestock while simultaneously enhancing soil ecosystem services without sacrificing subsequent crop yield. Field research was conducted in east‐central Mississippi from 2019 to 2021 on a sandy loam soil to assess the impacts that grazing, tillage, and cover crop species had on corn ( Zea mays L.) grain yield and soil characteristics. The main plot was grazed (G) and un‐grazed (UG) cover crops, tillage (conventional and no‐till [NT]) was the subplot, and cover crop species the sub‐subplots. Cover crops were grazed using beef ( Bos taurus ) heifers at a stocking density of approximately 3300 kg ha −1 each growing season as forage mass (FM) allowed. No differences were observed in FM among cover crop treatments; however, FM, crude protein (CP), and total digestible nutrients (TDN) were affected by tillage and grazing. Corn grain yield was unaffected by grazing or tillage but was impacted by cover crop treatment. Cereal rye ( Secale cereale L.; 11.99 Mg ha −1 ), crimson clover ( Trifolium incarnatum L.; 11.67 Mg ha −1 ), and cereal rye + radish ( Raphanus sativus L.; 12.07 Mg ha −1 ) had greater grain yield compared to the un‐planted control (10.99 Mg ha −1 ). The combination of G × no‐till (NT) resulted in greater penetration resistance (71.07 J); however, G plots contributed to greater organic matter(OM) concentrations. Overall, our data suggest that complimenting G and NT practices does not impact subsequent corn grain yield and could add value to cover cropping systems.
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Claims 9
Claim · model-written summary
Forage mass did not differ among cover crop treatments.
Verbatim
e0“No differences were observed in FM among cover crop treatments”
t0“cover crops in continuous corn”
Claim · model-written summary
Tillage and grazing affected forage mass, crude protein and total digestible nutrients.
- Taxon
- cover cropst0
- Treatment
- tillage and grazinge0
- Outcome
- FM, crude protein (CP), and total digestible nutrients (TDN)e0
Not reportedDirection
Verbatim
e0“FM, crude protein (CP), and total digestible nutrients (TDN) were affected by tillage and grazing”
t0“cover crops in continuous corn”
Claim · model-written summary
Corn grain yield was unaffected by grazing or tillage.
- Taxon
- Corn
Zea mays subsp. mayse0 - Treatment
- grazing or tillagee0
- Outcome
- grain yielde0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn grain yield was unaffected by grazing or tillage”
Claim · model-written summary
Cover crop treatment affected corn grain yield.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- cover crop treatmente0
- Outcome
- grain yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn grain yield was unaffected by grazing or tillage but was impacted by cover crop treatment”
Claim · model-written summary
Cereal rye preceded greater corn yield of 11.99 Mg ha −1 versus unplanted control.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Cereal ryee0
- Outcome
- grain yielde0
- Direction
- greatere0
- Value
- 11.99 Mg ha −1e0
- Qualifier
- 10.99 Mg ha −1e0
- Comparator
- un‐planted controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cereal rye ( Secale cereale L.; 11.99 Mg ha −1 ), crimson clover ( Trifolium incarnatum L.; 11.67 Mg ha −1 ), and cereal rye + radish ( Raphanus sativus L.; 12.07 Mg ha −1 ) had greater grain yield compared to the un‐planted control (10.99 Mg ha −1 )”
t0“corn”
Claim · model-written summary
Crimson clover preceded greater corn yield of 11.67 Mg ha −1 versus unplanted control.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- crimson clovere0
- Outcome
- grain yielde0
- Direction
- greatere0
- Value
- 11.67 Mg ha −1e0
- Comparator
- un‐planted controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cereal rye ( Secale cereale L.; 11.99 Mg ha −1 ), crimson clover ( Trifolium incarnatum L.; 11.67 Mg ha −1 ), and cereal rye + radish ( Raphanus sativus L.; 12.07 Mg ha −1 ) had greater grain yield compared to the un‐planted control (10.99 Mg ha −1 )”
t0“corn”
Claim · model-written summary
Cereal rye plus radish preceded greater corn yield of 12.07 Mg ha −1 versus unplanted control.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- cereal rye + radishe0
- Outcome
- grain yielde0
- Direction
- greatere0
- Value
- 12.07 Mg ha −1e0
- Comparator
- un‐planted controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cereal rye ( Secale cereale L.; 11.99 Mg ha −1 ), crimson clover ( Trifolium incarnatum L.; 11.67 Mg ha −1 ), and cereal rye + radish ( Raphanus sativus L.; 12.07 Mg ha −1 ) had greater grain yield compared to the un‐planted control (10.99 Mg ha −1 )”
t0“corn”
Claim · model-written summary
Grazing combined with no-till produced greater soil penetration resistance of 71.07 J.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- G × no‐till (NT)e0
- Outcome
- penetration resistancee0
- Direction
- greatere0
- Value
- 71.07 Je0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combination of G × no‐till (NT) resulted in greater penetration resistance (71.07 J)”
t0“corn”
Claim · model-written summary
Grazed plots had greater soil organic matter concentrations.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- G plotse0
- Outcome
- organic matter(OM) concentrationse0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G plots contributed to greater organic matter(OM) concentrations”
t0“corn”
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