The next land reform will force farmers to maximize the use of local feed resources. In the Jura, the heterogeneity of natural conditions drives to a variety of plant associations with specific production potential, often difficult to assess. Methods have been tested in plains and mountain regions to learn more about yield variability of the pastures. At the Jura foot and on its southern slope, droughts have greatly slowed the growth of grass in summer (2003) and spring (2011), causing decreases in annual yield of 40 %. The higher altitude and north exposure mitigate this negative effect, hence the interest in summering. Grass height measurements give an objective picture of the practices and consequences of a constant stocking rate on summer pastures. Small plots harvested and weighed allow a good assessment of the DM-yield and of the potential stocking rate. However, the link between botanical composition, respectively pastoral value, and yield has not been explicitly demonstrated by means of a wide range of vegetation observed on wooded pastures.
Stucky T., Hochstrasser M., Meyer S., Segessemann T., Ruthes A. C., Ahrens C. H., Dahlin P., Pelludat C.
The root knot nematode (RKN) Meloidogyne incognita causes damage in field and greenhouse crops. Agroscope researchers have developed a new screening test to identify bacteria that antagonise this agricultural pest.
With CULTAN fertilisation, nitrogen is injected into the soil as an ammonium solution. Multi-year trials conducted by Agroscope show that this method reduces nitrogen leaching by an average 38% without negatively affecting yields.
Tuta absoluta is one of the most destructive pests of solanaceous crops. Agroscope has developed a statistical model to study the population dynamics of the pest and its parasitoids and allows interventions to be optimally planned.