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headshot josh nasielski

Joshua Nasielski, Assistant Professor, University of Guelph (2019-Present)

Ph.D (2019) – University of Guelph

Email: nasielsk (at)

Faculty Web Page:

Research Vision: To conduct world-class crop science research that benefits Ontario’s agriculture industry and makes wider scientific contributions. The team executes this vision using a combination of field trials, crop modelling, and greenhouse experiments. We are also involved in extension and knowledge mobilization efforts to ensure the ‘word gets out’.

My own expertise is in crop science, at the intersection of crop physiology and agronomy. I work collaboratively with agronomists, economists, soil scientists, ecologists, and modelers to ensure we are doing world-class work. I also am pleased to work closely with skilled research technicians at the Winchester, New Liskeard and Emo Research Stations.

Our research focuses on corn, soybean, wheat and oats, some of Ontario’s main field crops. See our current research for a flavor of the types of projects we engage in. There are alot of projects on the go, and this all only happens because we have excellent team members.

Current Team Members

Ken Janovicek, Research Associate

Dr. Jinwook Kim, Post-doctoral fellow (Ph.D in Crop Physiology from University of Llieda, 2022)

Kurtis Pilkington, M.Sc student (co-supervised with Dr. Dave Hooker) – Plant growth regulator effects on winter wheat lodging, yield and biomechanics

Emma Dieleman, M.Sc student (co-supervised with Dr. Dave Hooker) – Planting date and management effects on winter wheat yield and physiology

Jongwon Kang, Ph.D student – Improving nitrogen management with late N applications in corn – modeling and field-based investigations

Farzana Yasmin, M.Sc student (co-supervised with Dr. Laura van Eerd) – Scaling out cover crop management across Ontario

Seth Ristma, M.Sc student (co-supervised with Dr. Dave Hooker) – Planting date and maturity rating effects in corn and soybean across Ontario

Gavin Brady, M.Sc student (co-supervised with Dr. John Lauzon) – drought effects on corn nitrogen uptake and metabolism.