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Swedish University of Agricultural Sciences
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PhD student in Horticultural Science Swedish University of Agricultural Sciences in Sweden
Degree Level
PhD
Field of study
Chemistry
Funding
Employment as a doctoral student for a 4-year programme (100% scope).
Deadline
Nov 27, 2026
Country
Sweden
University
Swedish University of Agricultural Sciences
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About this position
This PhD project at the Department of Biosystems and Technology, Swedish University of Agricultural Sciences, focuses on the valorization and risk assessment of anaerobic digestates for sustainable horticultural production. The research addresses how digestate from biogas production can be transformed into safe, useful inputs for horticulture, with particular attention to the liquid fraction for nutrient solutions and the fibre fraction as a growing-media component and potential partial replacement for peat.
The project is centered on a key challenge for circular horticultural systems: the possible presence of pyralid herbicide residues in feedstocks and digestate fractions. These residues can persist through anaerobic digestion and affect sensitive crops at very low concentrations. The student will investigate their occurrence and fate in selected feedstocks and digestate fractions, especially in materials intended for growing media.
Research activities combine greenhouse and growth-chamber bioassays with laboratory studies and chemical characterisation. The work will examine plant growth and nutrient uptake, as well as the distribution, degradation, and immobilisation of herbicide residues. Overall, the project aims to generate knowledge that supports the safe use of digestate-derived products in horticulture and contributes to more circular production systems where nutrients and fibre are recycled from waste streams.
The position is part of the Biogas Solutions Research Center, a transdisciplinary environment involving SLU and Linköping University, together with researchers, practitioners, and organizations across the biogas system. The doctoral student will work in a multidisciplinary department with around 60 colleagues, including about 10 PhD students, and will participate in the daily work of the department as well as PhD courses. Communication of results to academic and industrial stakeholders is an important part of the project.
The project is located in Alnarp, Sweden.
Funding details
Employment as a doctoral student for a 4-year programme (100% scope).
What's required
Applicants must have a second-cycle (Master’s) qualification, or at least 240 higher-education credits with at least 60 credits at second-cycle level, or equivalent knowledge. For the third-cycle subject area in Horticultural Science, applicants must have equivalent knowledge to at least 90 credits in relevant subject areas, including a degree project and at least 30 advanced-level credits. English language proficiency equivalent to Swedish upper-secondary qualification Engelska B/6 is required. Candidates should have a degree at advanced level in Horticultural Science, Agricultural Science, or a similar subject, documented experience with laboratory work and experimental work in the field, and preferably experience with scientific writing, scientific communication, practical plant cultivation, microbial analyses, and a valid Swedish driver’s licence. Very good spoken and written English is mandatory.
How to apply
Submit your application through the application link provided in the advert. Include the required attachments described on the SLU doctoral education application page. Apply by 2026-11-27; note that the recruitment system is unavailable on 20–22 November due to a system update.
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Make your next move.
Prepare your application
Review drafts and confirm requirements with the university.