Organic horticultural soils lose anywhere from 0.3 to 4 cm of viable topsoil each year that does not regenerate. The main degradation processes involve microbial decomposition, compaction (50%), and erosion (50%). Not much is known, however, about the actual magnitude of the loss due to erosion. The measurement of the spatial redistribution of cesium-137 (Cs-137) provides a rapid and efficient means to quantify this loss. We will measure this radioisotope in 28 fields exposed to different atmospheric agents and subject to a variety of anti-erosion practices in order to quantify the long-term (60+ years) severity of erosion for these soil types.
From 2019 to 2023
This project will help bring about improvements in black peat conservation.
Ministère de l'Agriculture, des Pêcheries et de l'Alimentation du Québec | Université Laval
This project as aimed at comparing the efficacy of two parasites (T. brassicae and T. ostriniae) on leek moth.
Modifying the cropping system design is an effective way to improve potato crop water-use efficiency and, thereby, lessen the risk of crops experiencing water stress.
The aim of this project is to evaluate this aspect of potato production economics to assist producers and their advisors.
Researcher: Luc Belzile