An environmental life cycle assessment of mechanical and mechanical-chemical weed control methods was established for ware potatoes, grain maize, winter rape and winter wheat, and compared to that of chemical techniques. Given the assumptions defined, the following conclusions can be drawn: The factors (fuel consumption, mechanisation, herbicide production, emissions, etc.) influencing the environmental impacts strongly differ according to the specific technique and crop. No general rule can be defined. Mechanical and mechanical-chemical methods contribute to the reduction of the toxic potential. This reduction strongly depends on the active ingredient used in the chemical variant. For the other environmental categories, no general conclusion can be drawn. For the crops, the techniques and the active ingredients considered, mechanical methods are to be promoted, in particular for grain maize and winter rape.
How do farmers experience social sustainability on their farms? As an Agroscope study shows, this depends on farmers’ identities and farm types.
Cheese stands out as one of the main Swiss agricultural trade offensive interests. Outside the EU, the USA are an important export destination. The CAPRI model allows to assess the impact of a free trade agreement for cheese between the USA and CH.
Policies to reduce agricultural greenhouse gas emissions are more effective and more efficient if they are set at the regional level and not at the level of individual farms. This can help achieve climate targets.