The purpose of this experiment was testing the FTIR method and instrumental set-up for field comparaison of emissions from different manure spreading systems and also to evaluate those emissions and compare the spreading techniques. For the specific conditions of the experiment, reductions of 26% were observed for the bandspreading method and 45% for the trailing shoe system compared with the conventional double deflector nozzle. Emissions of other gases such as NO2 could not be observed; other techniques such as static chambers would probably be more appropriate for emissions of small gases quantities.