Archive

2,595 posts

Environment

Birrer S., Jenny M., Zbinden N.

Population trends of Swiss breeding birds in farmland 1990-2009

With the publication of the „environmental objectives in the agricultural sector “(EOAS), mandatory target values for biodiversity on agricultural land have been set for the first time. We present a novel index which indicates population trends of the designated EOAS breeding birds and hence represents one part of the EOAS target attainments. The situation for…
Animal production

Nydegger F., Gygax L., Egli W.

Automatic Measurement of Jaw Movements in Ruminants by Means of a Pressure Sensor

Ruminant activity is considered an important non-invasive measurable parameter for the early identification of metabolic problems in ruminants. Traditional rumination sensors have drawbacks, particularly when used in the cowshed area. The newly developed ART rumination sensor incorporates a noseband sensor comprising a fluid-filled tube and pressure sensor, a data logger, and the evaluation software. The…

Wissenschaft und Hortikultur füe alle? Rückblick auf den Hortikultur-Kongess in Lissabon

An der 28. internationalen Konferenz der Hortikulturwissenschaften (www.ihc2010.org) haben sich Ende August in Lissabon 3�500 Forschende und Vertreterinnen und Vertreter der Vor- und nachgelagerten Bereiche der Hortikultur aus Europa, Amerika, Afrika, Asien und Ozeanien getroffen. Die Konferenz wird alle vier Jahre durch die International Society of Horticultural Science (ISHS; siehe www.ishs.org) organisiert. Wissenschaftler der Forschungsbereiche…
Animal production

Roth N., Schmied R., Kunz P.

Rindfleischproduktion auf Fruchtfolgeflächen

Der Strukturwandel in der Schweizer Landwirtschaft, unter anderem der sinkende Milchpreis, veranlasst viele kombinierte Milchvieh-Ackerbaubetriebe zur Aufgabe der Milchproduktion. Dadurch werden die Kunstwiesenjahre innerhalb der Fruchtfolge nicht mehr benötigt, was negative Konsequenzen auf die biologische Stickstofffixierung (Weissklee), die Bodenstruktur und die Erosion haben kann. Die Fleischproduktion auf Kunstwiesenflächen während der Vegetationsperiode könnte ein möglicher Betriebszweig…
Agricultural economics

Barth L., Lanz S., Hofer C.

Promotion of grassland-based cattle farming through the 2014-2017 Swiss Agricultural Policy

The development of the direct payment system will include new contributions for ensuring the food supply. These contributions aim at achieving optimal use of natural production potential and shall thereby help to maintain the full production capacity of agriculture in Switzerland. Precondition for the payment of subsidies for ensuring the food supply on grassland will…
Environment

Briner S., Hartmann M., Lehmann B.

Is agroforestry an economic opportunity for carbon-neutral animal production?

In Switzerland, agriculture is responsible for about 11 % of the emitted greenhouse gases. Agroforestry systems may improve the climate balance of Swiss agriculture by sequestering carbon. Agroforestry systems are a combination of a lignifying permanent crop with a crop or with grassland on the same area. One advantage is their capability to sequester carbon,…
Animal production

Dissler L., Häberli M., Probst S., Spring P.

Piglets diet supplemented with amino acid valine

The goals of these trials were to investigate the effects of different dietary amino acid concentrations and valine:lysine ratios on piglet performance and health. Two 4-week trials with 90 weaned piglets each were conducted. Both trials were set up as a block design with 3 treatments and 6 replicates per treatment (a total of 18…
Plant production

Schaub L., Breitenmoser S.

Temporal and spatial dynamics of pea weevils in pea crops

The pea weevil Sitona lineatus L. colonises pea fields sporadically in spring and damages the pea root system. To increase efficiency of insecticide treatments against this weevil, its temporal dynamics, spatial distribution and the effect of treatments were studied using traps and an aspirator. Pea weevils appeared at pea emergence, i.e. 47 degree-days after sowing.…
Environment

Stünzi H.

Analytical studies of the CO2 test for P and K fertilisation

Extraction of soils with CO2-saturated water is one of the Swiss reference methods for phosphorus and potassium fertilizer recommendations. Laboratory experiments show that a significant role is played by interactions between CO2, calcium, phosphate, the only slightly soluble calcium phosphates and lime. Since soil air exhibits increased CO2 content, these solution equilibria also influence the…
Plant production

Schürch S., Gindro K., Schumpp O., Monod M., Verrier J., Bohni N., Wolfender J.-L.

Chemische Kriegsführung zwischen Pilzen: ein Arsenal an bioaktiven Molekülen

Die Pilze der Gattung Fusarium sind gefährliche Krankheitserreger für Pflanzen und Menschen. Die Infektionen, die sie hervorrufen, sprechen schlecht auf herkömmliche Behandlungen an. In einem innovativen Ansatz prüfen Forschende Möglichkeiten, die chemischen Substanzen, die in der Kriegsführung zwischen Pilzen zum Einsatz kommen, zur Pilzbekämpfung in der Medizin wie auch in der Agronomie zu nutzen. Dieses…
Animal production

Dufey P.-A., Gremaud V.

Scarring of the outside flat in beef: determining one origin of this quality defect

Scarring of the Outside Flat’ is the expression used in Switzerland to designate a quality defect appearing on the main muscle used to produce dried meat, the Biceps femoris or gluteobiceps. This problem, already known for decades and now clearly increasing, was still yet not explained. This led the inter-branch organisation for meat to award…
Plant production

Dugon J., Favre G., Zimmermann A., Charles R.

Phytosanitary practices in a arable farms network from 1992 to 2004

This study, realized on a network of pilot farms animated by AGRIDEA in the French part of Switzerland and in Ticino aims to provide global information about the evolution of phytosanitary practices in arable crops. The assessment of practices focusses on the number of interventions in each crop, the number of applications and the quantity…
Plant production

Richner W., Flisch R., Sinaj S., Charles R.

Determination of nitrogen fertilization standards for arable crops

This paper explains the principle of economically optimal N-fertilisation (Nopt). This principle allows the quantitative derivation of N-fertilisation standards based on N-fertilisation trials. The optimum level of N-fertilisation thus found represents a good compromise between the economic and ecological aims of arable farming. Within the framework of the ‘Principles of Fertilisation in Arable and Forage-Crop…
Plant production

Lê C.-L., Thomas D..

In vitro production of potato microtubers: effect of culture duration

The in vitro production of potato microtubers was carried out through several stages: at first microplant growth, then initiation of stolon followed by tuber formation (or tuberization). During the last stage, it is possible to develop high quality microtubers in terms of weight and size. However, after examination, the quality of plant material produced in…
Other

Bütikofer U., Crole-Rees A., Flury C., Lobsiger M.

News von Agroscope Forschungsprogrammen

Après deux ans et demi d’existence, les programmes de recherche d’Agroscope lancés en 2008 dégagent toujours plus de résultats au niveau des différents projets. Parallèlement, les projets incorporés dans les programmes engendrent de premiers produits de synthèse. Outre les activités de recherche en cours, le développement des programmes a débuté en tenant compte du Programme…
Plant production

Bosshard C., Flisch R., Mayer J., Basler S., Hersener J.-L., Meier U., Richner W.

Improving Nitrogen Efficiency via Slurry Treatment

Over the last few decades, intensified agricultural production has greatly increased fluxes of nitrogen (N) between different compartments of the biosphere, and more specifically, emissions of N compounds from agroecosystems. Agriculture is one of the main emitters of N compounds (e.g. ammonia, nitrate, nitrous oxide) whith negative impact on the environment like greenhouse-gas emissions and…
Environment

Knauer K., Knauert S., Félix O., Reinhard E.

Pesticides risk assessment for aquatic ecosystem

The analyse of environmental risks aims to protect water, soils and the air so that the organisms living in these ecosystems do not suffer an unacceptable level of damage. To analyse the effects of plant protection substances in rivers and streams, studies focus on typical small waters adjacent to farmland. Risk assessment is based on…

Fat and fatty acids in preserved forages

This article shows the difference in fat and fatty acid levels between preserved forages and grass. Grass was harvested from the same plot of land at two different stages (30 days apart) over three years and stored using six different processes. 42 samples were analysed by extraction using petroleum ether for fat and by gas…