Nitrogen fertilization rate and method influences water and nitrogen productivity of forage winter wheat

dc.contributor.author Lenssen, Andrew
dc.contributor.author Sainju, Upendra
dc.contributor.author Lenssen, Andrew
dc.contributor.author Jones, Clain
dc.contributor.author McVay, Kent
dc.contributor.author Angvick, Terry
dc.contributor.department Agronomy
dc.date 2021-01-06T15:57:45.000
dc.date.accessioned 2021-02-24T19:25:32Z
dc.date.available 2021-02-24T19:25:32Z
dc.date.issued 2020-01-01
dc.description.abstract <p>Spring‐seeded annual forages are well adapted to the Great Plains; however, the influence of application rate and method of N fertilization on winter wheat (WW) (<em>Triticum aestivum</em> L.) forage productivity is unknown. A field study was conducted in a factorial design for 3 yr to determine the influence of N application rate and method on water and N productivity of awnletted WW ‘Willow Creek’. Urea was either broadcast or banded at planting using N fertilization rates of 0, 28, 56, and 84 kg N ha−1. The N application rate × method interaction was significant only for WW height. Weed herbage was low at WW forage harvest, 19 kg ha−1. As N fertilization rate increased from 0 to 84 kg N ha−1, wheat stem density and height increased by 70 and 78%, respectively, and herbage increased by 58%. Increased N rate increased WW water use quadratically, but water productivity (kg biomass ha−1 mm−1) was 68% greater at 84 kg N ha−1. However, N application method did not influence water use or productivity. Banded N application increased N accumulation in WW herbage by 11% compared to broadcast N. Increasing N rate reduced N productivity by 24% compared to 0 kg N ha−1. Willow Creek WW produced greater herbage yield as N fertilization rate increased with banded application. Willow Creek is a highly productive fall‐planted forage in this predominantly spring‐planted small grain–grain legume region.</p>
dc.description.comments <p>This article is published as Lenssen, Andrew W., Upendra M. Sainju, Clain Jones, Kent McVay, and Terry Angvick. "Nitrogen fertilization rate and method influences water and nitrogen productivity of forage winter wheat." <em>Agronomy Journal </em>(2020). doi: <a href="https://doi.org/10.1002/agj2.20495">10.1002/agj2.20495</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/684/
dc.identifier.articleid 1733
dc.identifier.contextkey 19944060
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/684
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/93083
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/684/2020_Lenssen_NitrogenFertilization.pdf|||Sat Jan 15 01:29:29 UTC 2022
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/684/2020_Lenssen_NitrogenFertilizationManuscript.pdf|||Fri Oct 23 12:43:59 UTC 2020
dc.source.uri 10.1002/agj2.20495
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Soil Science
dc.title Nitrogen fertilization rate and method influences water and nitrogen productivity of forage winter wheat
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 7f67ca95-722b-4dfd-8f49-56ff95980240
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
File
Original bundle
Now showing 1 - 2 of 2
Name:
2020_Lenssen_NitrogenFertilization.pdf
Size:
1.06 MB
Format:
Adobe Portable Document Format
Description:
Name:
2020_Lenssen_NitrogenFertilizationManuscript.pdf
Size:
1.59 MB
Format:
Adobe Portable Document Format
Description:
Collections