The nutritive value of 30 plant species in alpine pastures was determined. Samples were collected at the beginning of the alpine season and three to four weeks later at two different sites. On the first sampling date the net energy content for lactation of the species was between 4.7 and 6.8 MJ/kg dry matter (DM). Between the two sampling dates the energy content of grass species decreased at a faster rate than that of legumes and herbs. On the second sampling date the energy content ranged from 3.7 to 6.5 MJ/kg DM. Compared with grass species, legumes and herbs showed a lower content of cell walls but a higher content of crude protein, as well as four times the content of calcium and twice the content of magnesium. Therefore the botanical composition of a alpine pasture has a significant influence on the nutritive value of the forage.
Herbicide-resistant weeds are a growing problem throughout the world. Monitoring herbicide resistance in Switzerland allows us to understand the mechanisms behind it and to better manage the use of herbicides.
Agroscope compared crop protection strategies in apple production. Reducing the use of plant-protection products lowered the local ecotoxological risks, but resulted in trade-offs between environmental and economic performance.
Bacillus thuringiensis (Bt) bacterium proteins protect Bt maize from being fed on by specific insects. A new, systematic analysis of international field data confirms that non-target organisms in Bt maize are largely spared.