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 three-year project looked at optimal ways to use a mix of flowering plants against caterpillar pests of crucifers.
In this study, we will test alfalfa meal pellets in a broccoli crop planted on plastic-covered irrigated mounds and we will compare them with two organic fertilizer, in addition to a control treatment in which no nitrogen is added.
Production of technical sheets on the main natural enemies of Québec’s market garden crops.
Researcher: Annabelle Firlej