The objective of my research is to improve residue management strategies (recycling principles) and guidelines for nutrient conservation and soil carbon sequestration including effects on competitive interactions between crop species according to temporal nutrient demand and residue turnover. All activities are formulated within the framework of climate change mitigation and sustainable bioenergy production and typically in collaboration with companies and other private investors. I have strong competences with work in small-medium laboratory scale conditions as well as in larger single field and farm systems. In this work comprehensive experience with application of stable isotope techniques has been obtained.

Ongoing activities includes: Recycling of single leftovers or blends from biological (biogas and bioethanol) and thermal conversion (gasification and pyrolysis) technologies to soil as alternative phosphorous and potassium fertilizers and for soil carbon sequestration; Design and test of cropping systems for increasing production of biomass for bioenergy purposes and on the same time safeguard soil fertility and food productivity; Increasing the use of legumes for creating more sustainable agroecosystems with the main focus on substituting nitrogen (N) fertilization by symbiotic N₂-fixation to mitigate climate change