Seed yield and quality of pure stands of five perennial grassland species were tested at elevated atmospheric CO2 (60 Pa) in a three year field experiment. Four species showed a trend to increased seed production, while Plantago lanceolata L. produced a reduced number of seeds. Tests on seed quality revealed that the germination rate was not affected by elevated CO2, the proportion of big seeds, however, was reduced in legume species. It is concluded that at elevated CO2 in a multi-species grassland, the proportion of P. lanceolata seeds in the seed fall of the total community will be reduced, and that the seeds of Trifolium repens L. and Trifolium pratense L. could show a lower vigour at germination. Through these processes elevated CO2 may affect the species proportion in multi-species plant communities.
Grass-based beef production is markedly less productive than intensive year-round indoor-housing system-based production. Agroscope experts therefore studied how grass-based farms can produce both economically and in an ecologically sound manner.
Orchard crop spraying using unmanned aerial spraying systems commonly referred to as drones can lead to drift, posing a risk to residents and bystanders. The study shows that the risks arising from this are taken into account by the current registration process.
Trials conducted by FiBL have shown that conversion to organic farming also promotes endangered Red List species such as the carabid beetle species Amara tricuspidata. This species and other species consume seeds of forbs and grasses and thus supports natural weed control.