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Nitrogen Fertilizer Cover Crop Responses Seeded After Wheat and Effect on Grain Corn Yield in the Short-Term

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dc.contributor.advisor Hooker, David
dc.contributor.author Stewart, Matthew
dc.date.accessioned 2019-09-11T17:12:12Z
dc.date.available 2019-09-11T17:12:12Z
dc.date.copyright 2019-09
dc.date.created 2019-09-05
dc.date.issued 2019-09-11
dc.identifier.uri http://hdl.handle.net/10214/17439
dc.description.abstract Cover crops seeded after wheat (Triticum aestivum L.) provide agronomic, environmental and soil health services. Long-term cover crop trials were established at Ridgetown and Elora, ON, in 2017. But in the short-tern, cover crop populations, C:N ratios, N uptake and biomass in November, and subsequent corn (Zea mays L.) grain yields, were examined among combinations of five cover crop treatments, two nitrogen treatments before cover crop seeding, and two tillage systems in 2017 and 2018. In general, mixtures of cover crop species did not produce more biomass than monocultures at 3 of 4 site-years. N fertilizer applied after wheat harvest increased biomass of non-legumes and tended to reduce C:N ratios in November. Cover crops did not increase grain corn yields when adequately fertilized with N, but where N was limited, yields were improved after red clover (Trifolium pratense L.) and decreased after oat (Avena sativa L.). Cover crop performance can be maximized in the short-term, but longer-term studies are needed. en_US
dc.language.iso en en_US
dc.subject cover crops en_US
dc.subject short-term en_US
dc.subject nitrogen fertilizer en_US
dc.subject grain corn yield en_US
dc.title Nitrogen Fertilizer Cover Crop Responses Seeded After Wheat and Effect on Grain Corn Yield in the Short-Term en_US
dc.type Thesis en_US
dc.degree.programme Plant Agriculture en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Plant Agriculture en_US
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