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Sulphur deficiency in southern Ontario soils; how fertilization will impact canola (Brassica napus L.) and alfalfa (Medicago sativa L.) yield and quality

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dc.contributor.advisor Lauzon, John
dc.contributor.author Haupt, Margareta
dc.date.accessioned 2017-04-21T19:27:39Z
dc.date.available 2017-04-21T19:27:39Z
dc.date.copyright 2017-04
dc.date.created 2017-02-09
dc.date.issued 2017-04-21
dc.identifier.uri http://hdl.handle.net/10214/10316
dc.description.abstract As sulphur (S) deposition has been decreasing across southern Ontario, in recent years S deficiencies in crops with high S demands, such as alfalfa (Medicago sativa L.) and canola (Brassica napus L.), have been becoming more common. To begin establishing S fertilization recommendations for southern Ontario growers, field trials were established in the 2013, 2014 and 2015 growing seasons (2015 only in alfalfa), to assess if these crops showed consistent yield responses to S application. Canola showed variable response, with 4 of 10 trial locations showing significant yield improvement. Alfalfa responded more consistenly, especially in second and third cuts, with 5 of 7 field locations showing significant response to S in at least one cut and/or total yield. Results also showed tissue testing to be a more reliable means of anticipating the need for S application than soil S extraction (by Mehlich III) in both crops. en_US
dc.language.iso en en_US
dc.subject canola en_US
dc.subject alfalfa en_US
dc.subject elemental sulphur en_US
dc.subject potassium sulphate en_US
dc.subject ammonium sulphate en_US
dc.subject fertilization en_US
dc.subject yield en_US
dc.title Sulphur deficiency in southern Ontario soils; how fertilization will impact canola (Brassica napus L.) and alfalfa (Medicago sativa L.) yield and quality en_US
dc.type Thesis en_US
dc.degree.programme Environmental Sciences en_US
dc.degree.name Master of Science en_US
dc.degree.department School of Environmental Sciences en_US
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