Since the Agricultural Operations Regulation came into effect, farmers have had to take phosphorus saturation levels into account when spreading manure and other phosphorus sources. By factoring in natural soil phosphorus content and phosphorus saturation when drawing up their agroenvironmental fertilization plans, producers have been able to better distribute their manure on their farms. However, they are unable to monitor changes in phosphorus levels and are anxious that they may be too low. Indicators on phosphorus saturation and phosphorus fixation capacity of soils have been developed under experimental conditions, and these need to be validated under field conditions for producers to recognize the value of these phosphorus management tools. The aim of this project is to show that efforts made to better distribute phosphorus on the land are effective and that the indicators used to determine phosphorus saturation thresholds are correlated with soil phosphorus balance and dynamics.
From 2017 to 2019
Livestock production, Field crops
Soil health, Fertilizer management, Environmental regulations
This project will help validate or improve the indicators used for manure management.
Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec | Association des conseillers de Chaudière-Appalaches | Conseillers et conseillères des clubs-conseils en agroenvironnement de Chaudière-Appalaches | Fédération de l’UPA de Chaudière-Appalaches
Research report • Marc-Olivier Gasser, Francis AllardGasser, M.-O., M.-E. Tremblay, F. Allard. 2019. Validation des outils préconisés pour réduire la saturation des sols en phosphore par une analyse de l'état des sols et du bilan de phosphore dans une région à forte densité animale. IRDA. 38 p, Gasser, M.-O., M.-E. Tremblay, F. Allard. 2019. Validation des outils préconisés pour réduire la saturation des sols en phosphore par une analyse de l'état des sols et du bilan de phosphore dans une région à forte densité animale. IRDA. 38 p, Download Download
Cow-calf farms tend to prefer outdoor breeding, poor-quality drinking water can have a direct impact on animal health, and may lead to higher pathogen levels in the environment and at slaughter time, and negative consequences for food safety.
This project addresses the risks posed by the spreading of manure and emissions released into the environment to the biosecurity of farms, as well as to the health of workers and nearby populations.
Researcher: Stéphane Godbout
Assessment of the efficiency of biomethanation digestate as a fertilizer for field crops and as recycled bedding in dairy production.