David E. Pelster

Current knowledge and research gaps for manure management in sub-saharan Africa

Sonja Leitner, Winnie Ntinyari, I. Wanyama, Mirja Michalscheck et autres

de, Kenya, ch, bg, ca, Cameroun (code pays fourni par la source)

Enhanced DNDC modeling of the effects of tillage inversion, residue burial, and manure management on crop productivity and soil carbon in Quebec

Ruth C Sitienei, Zhiming Qi, Brian Grant, Andrew Vanderzaag et autres

Tillage-induced soil inversion and buried residues are often overlooked in agroecosystem models, particularly when combined with manure applications. This may lead models to overestimate soil organic carbon (SOC) losses from moldboard plowing, biasing carbon accounting relative to other tillage practices. This study …

ca (code pays fourni par la source)

Agricultural nitrous oxide emissions across twenty years of micrometeorological observations show trends associated with soil freezing and fertilizer application

Leah Brown, Ian B. Strachan, David E. Pelster, Stuart Admiral et autres

Emissions of nitrous oxide (N 2 O) from agricultural soils can be substantial during the non-growing season (NGS; defined in Canada as November 1 to April 30) but this conclusion is supported by only limited observations. Year-round studies utilizing multi-year observations are …

ca (code pays fourni par la source)

N 2 Onet: a global collaborative network facilitating advances in measurement, modeling, and mitigation of agricultural soil nitrous oxide emissions

Wendy H. Yang, Kaiyu Guan, Evan H. DeLucia, Claudia Wagner‐Riddle et autres

Abstract Nitrogen (N) fertilizer supports global food production, but its use and overuse drive emissions of nitrous oxide (N 2 O), a potent and long-lived greenhouse gas. Understanding the drivers of N 2 O fluxes remains elusive, making it difficult to predict …

us, ca, dk (code pays fourni par la source)

Meta-analysis: effect of improved nitrogen management practices on nitrous oxide emissions in Canadian studies

Vera Sokolov, David E. Pelster, Azar Khorsandi, B. Chang Liang et autres

Crop production in Canada demands consistent use of nitrogen (N) fertilizer, which produces substantial nitrous oxide (N 2 O) emissions. It may be reduced through scientifically supported N management practices, including applying right sources at right time, right rate, and right place …

ca (code pays fourni par la source)

Conventional and industrial by-product fertilization do not induce greenhouse gas emissions in sandy soils under wild lowbush blueberry cropping in eastern Canada

Anthony J. Pelletier, Patrick Faubert, Jean Lafond, Normand Bertrand et autres

Greenhouse gas (GHG) emissions from wild lowbush blueberry (WLB) production after fertilization with conventional mineral (MIN) and organic (ORG) or industrial pulp and paper mill sludge (PPMS) and synthetic anhydrite (SA; calcic amendment; CaSO 4 ) remain unknown. We assessed nitrous oxide …

ca (code pays fourni par la source)

Impact of mineral, organic, and industrial by-product fertilization on leaf nutrient status of wild lowbush blueberry

Anthony J. Pelletier, Patrick Faubert, Jean Lafond, Normand Bertrand et autres

Monitoring wild lowbush blueberry (WLB) leaf tissue during the sprout year provides adequate guidelines for fertilizer recommendations. Conventional mineral (MIN) fertilizers and dried poultry manure (organic (ORG)) are environmentally and financially costly to acquire. Pulp and paper mill sludge (PPMS) and synthetic …

Challenges and Insights for Simulating Nitrous Oxide Emissions in Eastern Canada: Evaluating an Agroecosystem Model Ensemble

Ward Smith, Brian B. Grant, Budong Qian, Guillaume Jégo et autres

Biogeochemical models continue to be improved in their ability to account for the impacts of agricultural management, soil characteristics, and climate on crop productivity and greenhouse gas emissions. Depending on the model, limitations still exist including the ability to characterize a limited …

ca, us (code pays fourni par la source)

Improved nitrogen fertilizer management practices that reduce growing season nitrous oxide emissions may increase non-growing season emissions

David E. Pelster, Vera Sokolov, Stuart Admiral, Haben Asgedom-Tedla et autres

Field cropping practices in Canada include routine use of nitrogen (N) fertilizer, which produces substantial amounts of nitrous oxide (N2O) emissions. Adoption of improved N management practices may reduce both the amount of N applied and these N2O emissions. Using flux-tower field …

ca (code pays fourni par la source)

Review of research studies on nitrous oxide emissions from manure-amended soils in Canada from 1990 to 2023

Chih‐Yu Hung, David E. Pelster, Brian B. Grant, Ward Smith et autres

Nitrous oxide (N 2 O) emissions from manure-amended soils are estimated to be 1525 kt CO 2 e in Canada. The accuracy of this estimate is dependent on emission measurements. However, obtaining accurate measurements is challenging due to the variable distribution of …

ca (code pays fourni par la source)

Conventional and industrial by-product fertilization do not induce greenhouse gas emissions in sandy soils under wild lowbush blueberry cropping in eastern Canada

Anthony J. Pelletier, Patrick Faubert, Jean Lafond, Normand Bertrand et autres

ca (code pays fourni par la source)

Early improvement of soil health under cropping systems including perennial forage crops and dairy cattle slurry in a cool humid climate

Émilie Maillard, Martin H. Chantigny, Andrew VanderZaag, Erin L. Smith et autres

In the past decades, dairy farms in eastern Canada have dedicated more land to annual crops and less to perennial forages. Concurrently, there has been a shift in cattle manure management from solid to liquid forms. Our objective was to determine the …

ca (code pays fourni par la source)