The French software tool AzoFert® is based on a complete and predictive dynamic nitrogen balance sheet to establish the nitrogen fertilization recommendation. This software tool uses modelling and measurement of the mineral nitrogen stock at the beginning of the balance in order to precisely adjust the fertilizer recommendation to the soil, climatic and cultural characteristics…
Rape-stem weevil (Ceutorhynchus napi Gyll.) has proven harmful for oilseed rape in Switzerland since the introduction of this crop during the Second World War. The impact of this pest on yield and the possibility of establishing an action threshold were determined during tests, from 1981 to 2008. Weevils invade oilseed rape crops in winter, once…
In 2013, six new tetraploid varieties of early (Arcturus, Algira and Salmo) and late (Allodia, Vidalia and Soraya) perennial ryegrass (Lolium perenne L.) from the Agroscope breeding programme were admitted onto the Swiss List of Recommended Varieties for forage plants. The lineage of the three early varieties goes directly back to diploid Swiss ecotype material…
Measures for improving quality are currently being tested in Swiss wheat production. In cultivation, quality can be influenced by choice of site, management, and variety. In order to investigate the effects of variety and the environment, comprehensive quality tests were performed on 12 varieties in the Organic Wheat Trial Network in 2012 and 2013. It…
Despite state financial support (oilseed payments) for linseed, linseed is still a fairly insignificant oilseed crop in Switzerland. Over the last few years, however, the area under organic cultivation of this crop has been significantly expanded. With the aim of improving yield stability, in small-plot trials, comparisons of autumn vs. spring sowing and of two…
In many countries of the northern hemisphere, populations of honey bees and other pollinating insects have been in decline for some years. The causes of this decline have not yet fully been clarified. There are, however, strong indications that intensive agriculture can impact pollinators negatively. Many agricultural activities affect pollinating insects and thus affect the…
Each year, 1 300 000 tons of whey occur in Switzerland as a by-product of cheesemaking: 24 % is used in the food industry, 31 % is transformed into high-value animal feed and 45 % is fed directly to pigs. Increasing the percentage made into foodstuffs would be desirable but is difficult to realize because…
In light of the growing dynamics of the trade in agricultural products, the environmental competitiveness of Swiss foods vis-à-vis imports is gaining in importance. Agroscope studied the environmental impacts of wheat bread, feed barley, table potatoes, cheese and beef from both Switzerland and major importing countries. Cheese and potatoes from Switzerland were rated as similar…
Blackleg disease on potato is caused by several pectinolytic bacterial species and subspecies. Until 2012, most of the blackleg-diseased plants observed in Switzerland were infected with species belonging to the genus Dickeya. During 2013, two other species were found to be responsible for several blackleg infections: Pectobacterium wasabiae and Pectobacterium carotovorum subsp. brasiliense. The former…
In 2012 to 2014, Agroscope tested 18 diploid and 19 tetraploid varieties of Italian ryegrass at five sites in terms of their suitability for cultivation; four of the diploid and eight of the tetraploid varieties had already been recommended, and were retested. Yield, vigour, juvenile development, competitive ability, persistence, winter-hardiness, resistance to leaf diseases and…
In seed production of rye kernels frequently do not meet the minimum requirements for germination under laboratory conditions due to mechanical seed deterioration, preharvest sprouting and heavy infection with snow mold. Some triticale lots contain too many foreign cereal grains because triticale often follows wheat in the rotation. Additionally, snow mold infection causes abnormal seedling…
The Agricultural Knowledge System (AKS) in Europe has been, and often continues to be, characterised by the idea of linear knowledge transfer from science to farmers. Particularly in Switzerland, new structures have arisen as a result of the turnaround in agricultural policy and the introduction at the end of the twentieth century of cross-compliance between…
Leaf spot constitutes a threat to barley cultivation, leading to significant quantitative and qualitative yield losses. Although these symptoms can be due to physiological stress, they are primarily caused by infestation with the Ramularia collo-cygni fungus. In the absence of sporulation, these two types of leaf necrosis are practically impossible to tell apart. In order…
The difference between quality grades and quality labels is that the latter are awarded on the basis of production processes, whilst the former are conferred on the strength of the actual production results. In the course of a de-ideologisation of society, it might be assumed that the price differences between quality grades would grow larger…
In the last few years, and since the abolition of the minimum exchange rate by the Swiss National Bank in January 2015, the Swiss franc has appreciated strongly against all currencies of Switzerland’s most important trading partners. With the help of empirical models, we analyse how strongly aggregate exports of the agri-food sector react to…
To conserve and enhance biodiversity in agricultural areas, the Swiss Confederation uses two different approaches that support biodiversity enhancement areas (Biodiversitäts-Förderflächen, BFF). The action-oriented approach (Massnahmen-orientierter Ansatz, MOA) compensates farmers for prescribed management measures, whereas the result-oriented approach (Resultat-orientierter Ansatz, ROA) compensates farmers for proven ecological results. This second approach, which in the Swiss Ordinance…
The physiology of the potato tuber is characterized by two consecutive periods: the dormancy and the incubation. During the dormancy period, the tuber is under vegetative rest and is unable to sprout. The incubation period begins at sprouting and ends when the first progeny tuber appears on the stolons. The duration of both periods varies…
There are currently quantitative restrictions on the use of copper-based fungicides. In Switzerland, restrictions are imposed on organic farmers by the licensing authority for pesticides, the Swiss Organic Farming Ordinance and the Bio Suisse Standards. The maximum permitted quantities are 1.5 kg/ ha/a in pome fruit, 2 kg/ha/a in soft fruit and 4 kg/ha/a in…
Experiments with various mixtures containing triticale, oats and forage peas were carried out at Agroscope Posieux in 2012 and 2013. The crops were harvested on two dates, chopped, and ensiled in laboratory silos. In addition, the influence of a chemical silage additive on lactic acid fermentation as well as the aerobic stability was studied for…
Requiring few inputs, protein plant–immature cereal mixtures can guarantee forage stocks in times of shortage. In order to test whether and how the principle of additivity predicts nutritional value, we conducted in vivo digestibility tests and in sacco degradability tests (crude protein degradability, CPD) to evaluate silages from two mixtures with different protein-plant (i.e., pea)…
Like many other local breeds of European origin, the Franches-Montagnes (FM) must fight against a fall in population and number of births, as well as a lack of profitability at the production level. As part of preparing a strategy report for preserving the FM breed, Agroscope Swiss National Stud Farm SNSF investigated the market compliance…