dc.contributor.author | Madden, Rosalie | |
dc.date.accessioned | 2015-12-15T14:34:00Z | |
dc.date.available | 2015-12-15T14:34:00Z | |
dc.date.issued | 2015 | |
dc.identifier.uri | http://hdl.handle.net/10222/64684 | |
dc.description.abstract | Green manures (GrM) are used to meet organic crop-N needs. Productivity and N-accumulation of three spring-planted full-season GrM in Nova Scotia and two in Québec were compared. Hairy vetch-oats accumulated 123-292 kg biomass-N ha-1 and this was significantly correlated to growing degree days (GDD). In two site years out of four however, red clover was able to fix from the atmosphere a statistically equivalent amount of N as hairy vetch. Green manures were incorporated either in the fall or the spring the following year. Over the course of a 1225 GDD soil incubation, hairy vetch-oats and red clover or red clover-oats mineralized statistically similar rates and quantities of mineral-N (93.7-111.4 kg N ha-1 and 30.0-43.7 kg N ha-1 in soils from Nova Scotia and Québec, respectively). In Nova Scotia, spring incorporation of GrM resulted in greater spring wheat N-uptake (48.6 kg N ha-1) than fall incorporation (40.6 kg N ha-1). | en_US |
dc.language.iso | en_US | en_US |
dc.subject | green manure | en_US |
dc.subject | organic agriculture | en_US |
dc.subject | nitrogen | en_US |
dc.subject | hairy vetch | en_US |
dc.subject | red clover | en_US |
dc.subject | common vetch | en_US |
dc.title | Agronomic Evaluation of Novel Green Manures for Organic Grain Production in Eastern Canada | en_US |
dc.date.defence | 2015-11-27 | |
dc.contributor.department | Faculty of Agriculture | en_US |
dc.contributor.degree | Master of Science | en_US |
dc.contributor.external-examiner | n/a | en_US |
dc.contributor.graduate-coordinator | Dr. Dian Patterson | en_US |
dc.contributor.thesis-reader | Dr. Andrew Hammermeister | en_US |
dc.contributor.thesis-reader | Dr. Anne Vanesse | en_US |
dc.contributor.thesis-supervisor | Dr. Derek Lynch | en_US |
dc.contributor.ethics-approval | Not Applicable | en_US |
dc.contributor.manuscripts | Not Applicable | en_US |
dc.contributor.copyright-release | Not Applicable | en_US |