Oksana Valetska
Researcher, Soil nutrient cycling
I work with sustainable agriculture, with a particular focus on soil health, nutrient cycling, and the development of circular fertiliser systems.
Research
My research spans experimental studies, modelling, and systems‑level assessments, and I am especially interested in how bio‑based fertilisers influence soil processes, nutrient availability, and long‑term carbon dynamics.
I have worked across different parts of the agricultural value chain, from soil processes and fertiliser technologies to crop responses and farmers’ decision‑making. Much of my work involves evaluating bio‑based fertilisers derived from waste streams and understanding their agronomic performance, environmental impacts, and potential role in more circular food systems.