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
This project was set up to test the nutrient balance sheet method as a tool for estimating phosphorus output from pullets and laying hens.
Researcher: Marc-Olivier Gasser
Development of optimized cleaning methods that are readily measurable with an effective real-time indicator.