The project evaluated and compared the effectiveness of two types of subsoil plows (mounted on a bulldozer or a tractor) operated parallel and perpendicular to the tile drains to improve soil drainage conditions and productivity compared to control plots. Three sites for the trials were selected in the Montérégie, Centre du Québec, and Chaudière-Appalaches regions on highly compacted clay soils with poor natural drainage. The productivity gains in commercial corn, soybean, and grain crops were compiled, analyzed, and compared in the light of the changes observed in the physical properties and hydraulic behavior of the soils.
From 2014 to 2017
Subsoiling revives compacted soil by increasing its permeability.
Innov'Action | Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec | Agriculture and Agri-Food Canada
Scientific article • Marc-Olivier GasserDjiemon, A, M.-O. Gasser, J. Gallichand. 2019. Random forests to detect subsoiling and subsurface drainage effects on corn plant height and water table depth. Soil and Tillage Research. 192(September 2019) 10 p. Djiemon, A, M.-O. Gasser, J. Gallichand. 2019. Random forests to detect subsoiling and subsurface drainage effects on corn plant height and water table depth. Soil and Tillage Research. 192(September 2019) 10 p. Download Download
Demonstration project to showcase the ability of undersown clover cover crops to reduce nitrogen fertilizer requirements in crops.
Researcher: Marc-Olivier Gasser
This project evaluated the impact of various corn, soya, and wheat fertilization methods on marketable yields, harvest quality, nitrate losses, and movement of microorganisms potentially pathogenic for humans.
Researcher: Caroline Côté