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Alexander Menegat

Alexander Menegat
My research focuses on ecological weed management and the diversification of cropping systems. My aim is to improve our understanding of interactions within agro-ecosystems and to develop cropping systems based on the systematic and integrated use of ecological mechanisms rather than direct interventions such as herbicides and fertilisers.


Simplified crop rotations, excessive fertilizer usage, and overreliance on herbicides for weed control have resulted in a multitude of complex issues in modern agroecosystems. These include the rapid expansion of herbicide-resistant weed populations, contamination of the environment and the food chain with pesticides, health hazards for pesticide users and consumers, and an immense loss in biodiversity. Today's weed communities are generally dominated by a few highly adaptable species, which are challenging to control through strategies solely based on direct weed control measures. To address these challenges, there is a need for cross-scale and multidisciplinary research and teaching aimed at improving environmental, social, and economic sustainability in modern cropping systems.

My research aims to investigate the impact of diversifying cropping systems on the provision of ecosystem services. Specifically, my focus is on how diversification affects the composition of arable plant communities, and subsequently, functional trait diversity in agroecosystems. In my research, I employ participatory techniques wherein farmers, advisors and researchers collaborate to design and evaluate cropping systems in short- and long-term field tests. In addition to my core research activities, I have a keen interest in the environmental, social and economic impacts of agroecosystem management.


I am leading the Master course "Sustainable Plant Production". The course is part of the Master program in Plant Biology for Sustainable Production.


I am leading the following research projects:


  • since 2023 Senior Lecturer (Docent) in Plant Ecology, SLU Department of Crop Production Ecology
  • 2019 - 2023 Associate Senior Lecturer in Plant Ecology, SLU Department of Crop Production Ecology
  • 2015 - 2019 Postdoctor at Swedish University of Agricultural Sciences, Department of Crop Production Ecology
  • 2012 - 2015 Postdoctor at University of Hohenheim, Institute for Phytomedicine
  • 2012 Ph.D. in Agricultural Sciences, University of Hohenheim, Germany
  • 2008 Master in Agricultural Sciences, University of Hohenheim, Germany, Major: Crop Science



I am co-supervisor of Steffen Dahlke and Elsa Lagerkvist.

Selected publications


Senior Lecturer at the Department of Crop Production Ecology; Ogräsekologi
Telephone: +4618671850
Postal address:
Inst för växtproduktionsekologi, Box 7043
Visiting address: Ulls väg 16, Uppsala