Effectiveness of an annual vs. end-of-season legume green manure crop in increasing soil resilience and providing sufficient nitrogen

Aubert Michaud, retraité

Researcher, Ph.D.

418 643-2380
ext 690

Contact Aubert Michaud, retraité

Marc-Olivier Gasser

Researcher, agr., Ph.D.

418 643-2380
ext 650

Contact Marc-Olivier Gasser

Maryse Leblanc

Researcher, agr., Ph.D.

450 653-7368
ext 320

Contact Maryse Leblanc

Description

The project compared the nitrogen uptake effects of green manure crops grown for a full season, in association with a main crop (organic corn or wheat), or after it is harvested. Physical soil properties, nitrogen availability, and nitrate losses were also monitored with and without controlled drainage.

Objective(s)

Evaluate nitrogen inputs and soil profile improvements associated with five scenarios involving legume green manures
- grown for a full season
- in association with the main crop
- after the main crop is harvested

From 2016 to 2018

Project duration

Field crops

Activity areas

Soil health, Fertilizer management, Organic farming

Services

Green manure contributes to soil health.

Partners

Growing Forward 2 | Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec - Innov'Action Programme | Agriculture and Agri-Food Canada

Publications

Presentation • Marc-Olivier Gasser

M.-O. Gasser. 2018. Influence du climat sur la disponibilité de l'azote en production de grains biologiques. IRDA. 36 p. Download

Research report • Aubert Michaud, retraité, Marc-Olivier Gasser, Arianne Blais-Gagnon, William Huertas

Michaud, A., M.-O. Gasser, M.-E Tremblay. A. Blais-Gagnon, W. Huertas. 2020. Comparaison de la culture annuelle à la culture en fin de saison d'engrais vert de légumineuses pour augmenter la résilience du sol et fournir un apport suffisant de N dans un contexte climatique défavorable. IRDA. 82 p. Download

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