Trees in agricultural landscapes provide important benefits for the environment. Nevertheless, they are disappearing from cultivated land due to economic and operational reasons. In modern agroforestry systems, trees are planted in rows on agricultural land in order to facilitate the mechanical processing.The economic and ecological potential of modern agroforestry systems in Switzerland were examined. Productivity per hectare, profitability and environmental benefits were estimated using computer-aided models. The results show an up to 30% higher productivity (per unit area) of agroforestry systems compared to monocultures. In the long term, agroforestry systems can become economic profitable. On fertile arable land, they may reduce soil erosion by 78% and nitrate leaching by 46%as well as sequester up to 133 tons of carbon in 60 years. In interviews, farmers were questioned about their perception of benefits and disadvantages of agroforestry. Farmers rate agroforestry systems as non-productive and unprofitable. However, they admit a benefit for biodiversity and cultural landscape. Farmers need to be made aware of the many agroforestry designs and their economic potential, based on the experience of pioneer farmers.
Spring J.-L-, Zufferey V., Verdenal T., Reynard J.-S., Lorenzini F., Bourdin G., Blouin A., Carlen C., Jermini M., Morisoli R., Ferretti M.
Five Merlot clones bred in Switzerland are currently being distributed by the certification sector. A multiyear trial conducted by Agroscope in Gudo (Canton of Ticino) has made it possible to compare them with French and Italian reference clones and to highlight their very good performances.
Arbuscular mycorrhizal fungi are important for healthy soils and crops. A pan-European study shows that plant-protection products adversely affect these fungi, reducing their ability to supply plants with phosphorus via their roots.
Birdsfoot trefoil and sainfoin are used in mixtures for perennial hay meadows and for tannin-containing fodder. Agroscope is adding two new cultivars of birdsfoot trefoil to the ‘List of Recommended Varieties of Forage Plants’, whilst there is no change in the case of sainfoin.