The «Agriculture-Related Environmental Objectives» (AEOs) set binding targets for the conservation of species and habitat diversity in the agricultural landscape. For these, lists of species meriting particular consideration (AEO species) were drawn up. An initial evaluation of the ALL-EMA «Agricultural Species and Habitats» Monitoring Programme shows that in Switzerland, on average only 13 % of the low-input meadows categorised as biodiversity priority areas (BPAs) are actually nutrient-poor species-rich meadows, and only 31 % of the fairly-low-input BPA meadows are species-rich hay meadows. The objective of promoting the nutrient- poor grassland with the BPA type «low-input meadow» and the species-rich hay meadows with «fairly-low-input meadow» has thus only been achieved to a very limited extent. In the plain zone these percentages are in fact much lower than in the mountain zones, where they range up to 50 %. A positive development is that the percentage of low-input meadows with high ecological quality in the plain and hill zone has increased by around a third since the last evaluation 15 years ago. In order to improve goal achievement, greater account should be taken of the site and the original vegetation when registering a BPA meadow. In particular, this requires more on-site advice.
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.