No-tillage and conventional plough tillage have been compared in a crop rotation without fallow period and application of mineral fertilizer only, in the long-term field trial “Oberacker” at the Inforama Ruetti in Zollikofen (Berne) since 1994. The slightly humic sandy loam is a deep and nutrient-rich soil. The results obtained so far show continuous no-tillage of long duration to be an alternative to traditional plough tillage: no-tillage is ready to be put into agronomical practice, it leads to a biologically active soil of stable structure and thus of high load capacity, reduces the risk of soil erosion, the number of vehicle crossings and the consumption of fuel and presents an overall more favourable life cycle assessment. After a seven-year conversion period, slightly higher plant yields of comparable quality were obtained in no-tillage, due to more soil water being preserved and continually delivered to plant roots, as well as to a higher N-efficiency. In both cropping systems only about 60% of the standard amounts of N-fertilizer were applied. In the coming years both systems shall be tested further and optimised with regard to environmental sustainability and energy consumption by introducing more legume crops, applying ammonium-based N-fertilizer, and by reducing the application of glyphosate in no-tillage and the tillage intensity in conventional plough tillage.
A comparison of different methods of winter-wheat fertilisation with nitrogen showed that nitrogen surpluses can be significantly reduced by means of site-specific variable-rate nitrogen fertilisation.
Fabian Y., Roberti G., Jacot K., Gramlich A., Benz R., Szerencsits E., Churko G., Prasuhn V., Leifeld J., Zorn A., Walter T. (ꝉ), Herzog F.
Many tile drainage systems on arable land are in need of renewal. Cantons and stakeholders will now be given a decision-making tool enabling them to assess such areas in detail and to find sustainable solutions.
Ammonia emissions from the Swiss farming sector have scarcely declined over the past 20 years. This is because the factors leading to either an increase or decrease in emissions have for the most part cancelled each other out between 2000 and 2020.