A5020572521- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Invertebrate Taxonomy and Ecology
- Soil and Unsaturated Flow
- Plant nutrient uptake and metabolism
- Phosphorus and nutrient management
- Nematode management and characterization studies
- Legume Nitrogen Fixing Symbiosis
- Peatlands and Wetlands Ecology
- Agronomic Practices and Intercropping Systems
- Bioenergy crop production and management
- Composting and Vermicomposting Techniques
- Clay minerals and soil interactions
- Pesticide and Herbicide Environmental Studies
- Agroforestry and silvopastoral systems
- Soil Geostatistics and Mapping
- Isotope Analysis in Ecology
- Soil Management and Crop Yield
- Soil erosion and sediment transport
- Crop Yield and Soil Fertility
- Aquatic Ecosystems and Phytoplankton Dynamics
- Wastewater Treatment and Nitrogen Removal
- Microbial Community Ecology and Physiology
- Plant Micronutrient Interactions and Effects
- Heavy metals in environment
Université Mohammed VI Polytechnique
2023-2025
McGill University
2016-2025
Sphere Institute
2024
Polytechnic University
2024
Natural Resources Canada
2021
Ministry of Ecology and Environment
2021
Ecological Society of America
2019
South Dakota State University
1997-2013
Ste. Anne's Hospital
2013
GTx (United States)
2012
Crop production on acid soils can be improved greatly by adjusting the pH to near neutrality. While soil acidity is commonly corrected liming, there evidence that animal manure amendments increase of soils. The effect fresh cattle and nutrient availability was determined in laboratory for two from Beaverlodge Fort Vermillion Peace River region Alberta, Canada. immediate persisted during an 8‐wk incubation. Manure‐amended had significantly higher than unamended soil, highest rate (40 g kg −1...
Agricultural management practices that alter the soil organic matter (SOM) content are expected to cause changes in stability and aggregation. Animal manure is a source of (OM) has been demonstrated increase macroaggregate formation stability. The objectives this study were determine how long term cattle applications calcareous Haploboroll clay loam (Lethbridge, AB, Canada) affected aggregate size distribution, total C, N, P fractions, water‐stable aggregates. Beef applied at rates >30 Mg...
Historically, manure has been recognized as an excellent soil amendment that can improve quality and provide nutrients for crop production. In areas of high animal density, however, the potential water pollution resulting from improper storage or disposal may be significant. The objective this study was to determine P balance cultivated soils under barley (Hordeum vulgare L.) production have received long-term annual amendments. Nonirrigated at site in Lethbridge, AB, Canada, 0, 30, 60, 90...
Agriculture in the boreal and Arctic regions is perceived as marginal, low intensity inadequate to satisfy needs of local communities, but another perspective that northern agriculture has untapped potential increase supply food even contribute global system. Policies across jurisdictions target expansion intensification agriculture, contextualized for diverse social settings market foci north. However, rapid pace climate change means traditional methods adapting cropping systems developing...
Agricultural practices that alter the soil organic matter (SOM) content are expected to cause changes in stability and aggregation. The objective of this study was evaluate short‐term (<2 yr) water‐stable aggregates (WSA) a silt‐loam under different management regimes. interactive effects tillage (no‐till conventional tillage), crop rotations (continuous corn, corn‐soybean rotation) composted cattle manure applications [0, 15, 30, 45 Mg (wet weight) ha −1 ] on WSA were assessed factorial...
Interactions between water and N may impact remote‐sensing‐based recommendations. The objectives of this study were to determine the influence stress on reflectance from a corn ( Zea mays L.) crop, evaluate impacts implementing model A replicated treatment factorial experiment was conducted in 2002, 2003, 2004. Yield losses due (YLWS) (YLNS) determined using 13 C discrimination (Δ) approach. Reflectance data (400–1800 nm) collected at three growth stages (V8–V9, V11–VT, R1–R2) used calculate...