Forest managers are used to planning for decennials and they need to consider possible climate change scenarios. In addition, storm and bark beetle damage may necessitate rejuvenating the forest earlier and faster than foreseen. As an alternative to traditional plantations, an innovative direct seeding method in the forest is proposed. Trials have been conducted with agricultural machines such as manure barrels, pumps, tube bobbin and water cannon with a feed unit. The idea was to eject seeds onto the forest surface by water cannon. It is now clear that this kind of seeding is technically feasible. The machines may be used in the forest without problems. Within a few minutes, the seeds are ejected over a distance of 50-60m. Adding seeds directly into the manure barrel was unsuccessful but adding them by feed unit works well. The advantages of this method are (1) the seeds are sufficiently and efficiently distributed, (2) sprinkling brings seeds into good contact with the soil, (3) forest soil is not driven over again, (4) expensive fell clearing is not necessary and (5) natural regeneration is completed with tree species desired but not yet present. Some questions remain, however, about technical, silvicultural and ecological aspects. Nevertheless, this forest direct seeding method may open new opportunities to companies.
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.