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dc.contributor.authorBaber, Kaleb
dc.contributor.authorJones, Clain
dc.contributor.authorMcPhee, Kevin
dc.contributor.authorMiller, Perry R.
dc.contributor.authorLamb, Peggy
dc.identifier.citationBaber, K., Jones, C.,McPhee, K., Miller, P. R., & Lamb, P. (2023).Nitrogen fixation among pea and lentil varieties in theNorthern Great Plains.Agronomy Journal,115,2325–2338.
dc.descriptionThis is the peer reviewed version of the following article: [Nitrogen fixation among pea and lentil varieties in the Northern Great Plains. Agronomy Journal (2023)], which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions:
dc.description.abstractPulse crops, including lentil (Lens culinaris Medik.) and pea (Pisum sativum L.), can improve the sustainability of Northern Great Plains cropping systems, largely through biological N fixation. Greater N fixation amounts can help producers to increase yield while decreasing N fertilizer inputs for the following crop. There may be potential to breed greater N-fixing pulse varieties, yet little is known about varietal differences in N fixation. Nitrogen fixation of pea and lentil varieties was quantified at two sites in Montana from 2019 to 2021 using an N difference approach and the 15N natural abundance method. Riveland and CDC Richlea were frequently high N-fixing lentil varieties, both fixing ca. 130 kg N ha−1 in the site-year with the most favorable growing conditions. No pea variety had consistently greater N fixation than others, despite N fixation ranging from 88 to 135 kg N ha−1 in one site-year among varieties. Nitrogen fixation by lentil had an inverse relationship with days to flowering but was not correlated with days to maturity. Nitrogen fixation by pea was positively correlated with days to maturity but was not correlated with days to flowering. Breeding lentil and pea for high N fixation by selecting high N-fixing varieties is likely difficult, as varieties performed differently under variable environmental conditions. Breeding efforts based on traits, such as days to flowering, could be more successful. There were more positive correlations between N fixation parameters and seed yield for pea than for lentil, suggesting that breeding for greater yields could increase N fixation for pea but not lentil.en_US
dc.rightscopyright Wiley 2023en_US
dc.subjectnitrogen fixationen_US
dc.subjectNorthern Great Plainsen_US
dc.titleNitrogen fixation among pea and lentil varieties in the Northern Great Plainsen_US
mus.citation.journaltitleAgronomy Journalen_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentLand Resources & Environmental Sciences.en_US
mus.relation.universityMontana State University - Bozemanen_US

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