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dc.contributor.authorChen, Chengci
dc.contributor.authorZhou, Shuang
dc.contributor.authorAfshar, Reza, Keshavarz
dc.contributor.authorFranck, William
dc.contributor.authorZhou, Yi
dc.identifier.citationChengci Chen, Shuang Zhou, Reza Keshavarz Afshar, William Franck & Yi Zhou (2022) Durum wheat yield and protein influenced by nitrogen management and cropping rotation, Journal of Plant Nutrition, DOI: 10.1080/01904167.2022.2068432en_US
dc.descriptionThis is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Plant Nutrition on 2022-04-28, available online:
dc.description.abstractNitrogen (N) is the major input for cereal grain production. N management in durum wheat (Triticum turgidum subsp. durum) is critical for optimizing grain yield, protein concentration, and utilization efficiency of nitrogen fertilizer. A two-year study was conducted in the semi-arid region of the US Northern Great Plains (NGP) to investigate nitrogen input levels and application methods under fallow-durum and pea-durum systems. A durum wheat (cv. Joppa) was planted in the field following fallow or field pea with N input levels of 65 and 135 kg ha−1 and four application methods for each N input level. Results showed that water was the major limiting factor determining grain yield and protein concentration. Grain yield was greater but with similar protein concentration following fallow (1958 kg ha−1, 16.7%) than following field pea (1754 kg ha−1, 16.4%). Increasing N input from 65 kg ha−1 to 135 kg ha−1decreased grain yield from 1933 to 1779 kg ha−1 but improved protein concentration from 16.3 to 16.8%, which resulted in a negative nitrogen use efficiency (NUE). Application method of N did not significantly affect yield and protein, but there was a trend of yield increase via split application of N at the lower rate in a wetter year. The drought in 2017 resulted in lower test weight and harvest index (HI). The HI was lower in the135 kg ha−1 N rate than in the 65 kg ha−1 N rate, especially in the dryer year. Excessive N inputs in a water-limited environment may result in ‘haying-off’.en_US
dc.publisherInforma UK Limiteden_US
dc.subjectdurum wheaten_US
dc.subjectcrop rotationen_US
dc.subjectwater limitingen_US
dc.subjectharvest indexen_US
dc.titleDurum wheat yield and protein influenced by nitrogen management and cropping rotationen_US
mus.citation.journaltitleJournal of Plant Nutritionen_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentResearch Centers.en_US
mus.relation.universityMontana State University - Bozemanen_US

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