This presentation will present results from two pot experiments with spinach applying different pre-treated biochars from varying biomass. The study examined the effects on spinach yield as well as nitrate leaching and laughing gas emissions in sandy soil. Biochar made from straw showed the smallest enivironmental impact while at the same time producing the highest yield. Born in 1988, Christina Funk holds a master’s degree in agricultural biology of the University of Hohenheim. She came in contact with biochar for the first time during her master thesis. She is currently working on her PhD at Hochschule Geisenheim University where she examines the effects of varying biochars on laughing gas emissions and nitrate leaching as well as crop yield in sandy soils.