Plant protection products are applied to farmed land to protect crops from harmful organisms. From there, they might be transported via drift and run-off to adjacent habitats. For the active substances, regulatory acceptable concentrations (RAC) for aquatic organisms are determined during the authorization process. As part of the process of assessing the environmental risk, these…
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…
The assessment of the nutritional value of plants rich in condensed tannins (CT) stems from the models predicting the normal nutritional value. In order to verify the effects, this study compares the nutritional value of chicory (cychorium intybus), sainfoin (onobrychis viciifolia) and lotus (lotus corniculatus) obtained with data determined using animals (in vivo, in sacco)…
Annual livestock numbers, the distribution of livestock housing systems and NH3 emission factors were used to calculate ammonia emissions (NH3) from cattle farming for the years 1990 to 2020. Emission factors for loose housing with outdoor exercise areas were computed using a model-based calculation based on emission measurements from six dairy housing systems, milk urea…
The decision, whether a chemical fruit thinning in an apple orchard is necessary and to what extent, is often difficult. Currently growers take a decision without knowing the extend of natural fruit drop (June drop). In recent years two methods for prediction of fruit set respectively the intensity of June fruit drop in apples have…
Agriculture will undergo ecological intensification. Agroforestry systems which combine woody plants with arable crops and/or grassland provide ecological as well as economic benefits. One the one hand, agroforestry systems are characterised by higher overall productivity. On the other, they are expected to provide improved resource conservation and contribute to enhanced biodiversity. Whether this potential can…
When exposed to stress, plants produce protective compounds. These molecules contribute to their adaptation to environmental changes and to resistance to microbial attacks. Some fungal phytopathogenic species, especially those belonging to the Fusarium group, are also able to develop diseases in humans. In order to identify new sources of antifungal molecules of pharmacologic or agronomic…
A low feed intake during the first days after weaning predisposes piglets to diarrhea. Adding expensive milk byproducts such as whey or skim milk powder to their feed are used to stimulate their appetite. The effect of a diet which consisted of a piglet feed containing no milk byproducts supplemented with whole cow’s milk on…
Plant protection products (PPP) have become an important production factor in many agricultural cultivation systems without which the high quality and output of agricultural products cannot be guaranteed. On the other hand however, PPP often have dangerous properties, and can therefore only be brought into circulation in Switzerland once they have been approved by the…
From 2009 through 2011, Agroscope Reckenholz-Tänikon ART and Agroscope Changins-Wädenswil ACW tested 62 cultivars of perennial ryegrass, including 45 new cultivars. Yield, vigour, juvenile development, competitive ability, persistence, winter hardiness, resistance to leaf diseases and bacterial wilt, digestible organic matter content and suitability for higher altitudes were investigated. Of the early-to-mid-early varieties, «Algira», «Arcturus» and…
In order to check and improve the prediction of their nutritive value, 12 maize silages were studied as a supplement to the previous trials. Two varieties (Amadeo and LG32,52) were harvested at three different stages over the course of two years. The silages were studied to determine organic-matter digestibility (OMD) in the case of sheep,…
Traditional air to air heat recovery systems (HRS) are only useful at low outside temperatures as long as heat is required in animal housing. The incoming air can also be cooled by the heat exchanger if a high pressure water atomizer is installed in the HRS. If the outgoing air is humidified to saturation point…
The genbank of Agroscope ACW is more than one hundred years old and landraces, collected at the beginning of 1900 are still conserved and available. The actual conservation techniques allow the long term preservation of an important number of species. For the species conserved by seeds, the backup conservation is carried out in Norway, at…
Every month, only one official milk-testing result is available from between 1000 and 1200 milk producers instead of the two required. Of the missing results, one part originates from milk-collection centers where milk delivery takes place every other day and sampling is performed manually, and is therefore attributable to the time delay between sampling notification…
The agent-based agricultural sector model, SWISSland, simulates the processes of structural change and income trends in Swiss agriculture. The objective is to provide a portrayal of the behavioural patterns of farms that is as close to reality as possible. This article describes a method of best possible deduction from cost and work requirement coefficients, which…
ACW developed an Excel based tool called ArboPlus to help growers to roughly evaluate their situation on orchard, farm and family level. Information has been collected within workshops and interviews with consultants for fruit production and business. At orchard level, growers can analyze their productivity and compare it with a benchmark. At farm level, they…
Senecio aquaticus (marsh ragwort), poisonous to livestock, has become increasingly abundant in agricultural grassland. In this study, the germination and seed survival of S. aquaticus were investigated in a series of standardised tests with the aim to improve the species’ control in managed grassland. Germination percentages of fresh ripe seeds of S. aquaticus were on…
This contribution reveals how the agricultural provision of ecosystem services in Switzerland is supported by the agricultural policy making process. Based on the analysis of the agricultural policy reform processes AP 2011 and AP 14–17, the policy network and the policy positions of the individual network actors with respect to a further greening of the…