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| Main, Michael; Lynch, Derek; Ward, Amanda; Voroney, Paul; Schneider, Kim; Juurlink, Shelly. |
| Les légumineuses sont une source importante d'azote (N) en production biologique. Toutefois, il est prouvé que de trop faibles intrants peuvent entraîner une carence de phosphore du sol (P) dans les fermes laitières biologiques (Roberts et coll., 2008), et une réduction possible du rendement des cultures et de la fixation de N par les légumineuses fourragères. La présente étude vise à évaluer le lien entre la dynamique du P du sol et la fixation de l’azote par les légumineuses en gestion biologique (BNF). L’étude a deux principaux sous-projets : 1. Étude sur le terrain de la concentration du P dans le sol, et rendement des légumineuses fourragères et fixation de N dans les fermes laitières de l’Ontario et de la Nouvelle-Écosse, Canada. 2. Études en... |
| Tipo: Report |
Palavras-chave: Pasture and forage crops; Nutrient turnover; Farm nutrient management. |
| Ano: 2010 |
URL: http://orgprints.org/19552/1/OACC_Technical_Bulletin_2010%2D40_f_1.pdf |
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| Hammermeister, Andrew; Savard, Margaret; MacKenzie, Joanna; Lynch, Derek. |
| In this paper we provide an overview of the goals and potential benefits of a national science program for organic agriculture in Canada from 2013-2018 (application currently under review). The “Organic Science Cluster II (OSCII): Science With Impact for Profitability, Sustainability and Competitiveness” is linked with Canada’s Organic Value Chain Roundtable, the think tank addressing priorities for increasing capacity and market development for organic. OSCII will increase competitiveness by addressing barriers that are constraining production and by capturing new market opportunities such as emerging crops, aquaculture, and ornamental horticulture. OSCII will be coordinated and managed by the Organic Agriculture Centre of Canada at Dalhousie University’s... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Research communication and quality Education; Extension and communication Canada. |
| Ano: 2014 |
URL: http://orgprints.org/24063/1/24063_Template%20paper%20OWC14%20A4_revised_MM.pdf |
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| Main, Michael; Lynch, Derek; Ward, Amanda; Voroney, Paul; Schneider, Kim; Juurlink, Shelly. |
| Legumes are a key source of nitrogen (N) in organic production systems. However, there is evidence that reduced inputs may be leading to deficient soil phosphorus (P) on some organic dairy farms (Roberts et. al. 2008). This may affect crop performance and N fixation in forage legumes. This study aims to gauge the relationship between soil P dynamics in organic dairy systems and legume biological nitrogen fixation (BNF). The study has two main sub-projects: 1. A field survey of soil-test P and legume forage productivity and N fixation on dairy farms in Ontario and Nova Scotia, Canada. 2. Growth chamber and greenhouse studies examining: a) The role of P nutrition in legume growth and N fixation, and b) The P-supplying power of composts, struvite, and a... |
| Tipo: Report |
Palavras-chave: Pasture and forage crops; Nutrient turnover; Farm nutrient management. |
| Ano: 2010 |
URL: http://orgprints.org/19551/1/OACC_Technical_Bulletin_2010%2D40_1.pdf |
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