Response of oat grain yield and quality to nitrogen fertilizer and fungicides
Response of oat grain yield and quality to nitrogen fertilizer and fungicides
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Full item details
- dc.contributor.author
- May, William Earl
- Brandt, Stewart
- Hutt-Taylor, Kayleigh
- dc.date.accessioned
- 2023-04-17T19:29:46Z
- dc.date.available
- 2023-04-17T19:29:46Z
- dc.date.issued
- 2020-02-10
- dc.description.abstract - en
- Recently agronomists and producers have expressed interest in combining higher nitrogen (N) rates with a fungicide application even when disease intensity is low. The objective of this study was to evaluate the effect of fungicide application and N rates on grain yield and oat quality (Avena sativa L.). The experimental design was a split plot with fungicide (none, pyraclostrobin, propiconazole + trifloxystrobin) as the main plot, and eight N rates as sub-plots (5, 20, 40, 60, 80, 100, 120, and 140 kg ha−1). This study was conducted in 2012 and 2013 at two locations in Saskatchewan, Melfort and Indian Head. Disease intensity was very low for crown rust (Puccinia coronata) and low-to-moderate for all other foliar diseases, and with no large effect on grain yield and quality. No interaction between fungicide and N was observed. A curvilinear increase in grain yield occurred as the N rate increased from 5 to 140 kg ha−1. Increasing the N rate caused a small linear decrease in test weight. At a low oat price, $130 t−1, the N rate that maximized economic return was sensitive to N fertilizer price. As the crop price increased the optimum N rate was100 kg ha−1. In conclusion, our results indicate that using an N rate of 100 kg ha−1 provided the most consistent economic returns when the crop price is between $162 and $194 t−1. There is no beneficial interaction between fungicide and N for growers using higher N rates at low disease intensity and resistant genotypes.
- dc.identifier.citation
- May, W. E., Brandt, S., & Hutt-Taylor, K. (2020). Response of oat grain yield and quality to nitrogen fertilizer and fungicides. Agronomy Journal, 112(2), 1021-1034. https://doi.org/10.1002/agj2.20081
- dc.identifier.doi
- https://doi.org/10.1002/agj2.20081
- dc.identifier.issn
- 1435-0645
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/198
- dc.language.iso
- en
- dc.publisher
- Wiley
- dc.rights.openaccesslevel - en
- Green
- dc.rights.openaccesslevel - fr
- Vert
- dc.subject - en
- Agriculture
- dc.subject - fr
- Agriculture
- dc.subject.en - en
- Agriculture
- dc.subject.fr - fr
- Agriculture
- dc.title - en
- Response of oat grain yield and quality to nitrogen fertilizer and fungicides
- dc.title.fosrctranslation - fr
- Response of oat grain yield and quality to nitrogen fertilizer and fungicides
- dc.type - en
- Article
- dc.type - fr
- Article
- local.article.journalissue
- 2
- local.article.journaltitle
- Agronomy Journal
- local.article.journalvolume
- 112
- local.article.pagination
- 1021-1034
- local.peerreview - en
- Yes
- local.peerreview - fr
- Oui
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