Control

soda_20170202

The use of antibiotics is not permitted in Switzerland; moreover, no other medication exists to combat European foul brood. Hives with symptoms must therefore be destroyed in order to limit the outbreak, and the contaminated material must be sanitised. Since prevention is the best cure, early detection is desirable. Numerous studies have been undertaken and documents have been created at the Swiss Bee Research Centre and elsewhere to draw the attention of beekeepers to these problems and inform them about the causes and the control measures to be implemented.

Merkblatt zur erkennung von Bienenbrutkrankheiten (German (PDF, 357 kB, 18.10.2017) and French (PDF, 226 kB, 02.02.2017))
M. Tschumi (2011)

Elenco di pubblicazione

Elenco di pubblicazione

Pubblicazioni Jens Leifeld

Budge, K., Leifeld J., Hiltbrunner, E. , Fuhrer J.
Alpine grassland soils contain large proportion of labile carbon but indicate long turnover times.
Biogeosciences, 8, (7), 2011, 1911-1923.

Alewell, C., Giesler, R., Klaminder, J., Leifeld J., Rollog, M.
Stable carbon isotopes as indicators for environmental change in palsa peats.
Biogeosciences, 8, (7), 2011, 1769-1778.

Poeplau, C., Don, A., Vesterdal, L., Leifeld J., Van Wesemael, B. A. S., Schumacher, J. , Gensior, A.
Temporal dynamics of soil organic carbon after land-use change in the temperate zone – carbon response functions as a model approach.
Global Change Biology, 17, (7), 2011, 2415-2427.

Leifeld J., Müller, M. , Fuhrer J.
Peatland subsidence and carbon loss from drained temperate fens.
Soil Use and Management, 27, (2), 2011, 170-176.

Budge, K., Leifeld J., Egli, M., Fuhrer J.
Soil microbial communities in (sub)alpine grasslands indicate a moderate shift towards new environmental conditions 11 years after soil translocation.
Soil Biology and Biochemistry, 43, (6), 2011, 1148-1154.

Fernández, J., Plante, A., Leifeld J., Rasmussen, C.
Methodological considerations for using thermal analysis in the characterization of soil organic matter.
Journal of Thermal Analysis and Calorimetry, 104, (1), 2011, 389-398.

Leifeld J., Gubler, L., Grünig A.
Organic matter losses from temperate ombrotrophic peatlands: an evaluation of the ash residue method.
Plant and Soil, 341, (1-2), 2011, 349-361.

Conen, F., Yukatin, M. V., Puchnin, A. N., Leifeld J., Alewell, C.
δ15N natural abundance in permafrost soil indicates impact of fire on nitrogen cycle.
Rapid Communications in Mass Spectrometry, 25, 2011, 661-664.

Sanaullah, M., Chabbi, A., Leifeld J., Bardoux, G., Billou, D., Rumpel, C.
Decomposition and stabilization of root litter in top- and subsoil horizons: what is the difference?
Plant and Soil, 338, (1), 2010, 127-141.

Leifeld J.
Kohlenstoffsequestrierung in landwirtschaftlichen Böden – eine kritische Betrachtung: In: Emissionen landwirtschaftlich genutzter Böden.
KTBL-Schrift, 483, 2010, 182-191.

Leifeld J., Fuhrer J.
Organic farming and soil carbon sequestration: What do we really know about the benefits?
Ambio, 39, (8), 2010, 585-599.

Alexis, M. A., Rumpel, C., Knicker, H., Leifeld J., Rasse, D., Péchot, N., Bardoux, G., Mariotti, A.
Thermal alteration of organic matter during a shrubland fire: A field study.
Organic Geochemistry, 41, (7), 2010, 690-697.

Plante, A. F., Fernández, J. M. , Leifeld J.
Application of thermal analysis techniques in soil science.
Geoderma, 153, 2009, 1-10.

Kammer, A., Hagedorn, F., Shevchenko, I., Leifeld J., Guggenberger, G., Goryacheva, T., Rigling, A., Moiseev, P.
Treeline shifts in the Ural mountains affect soil organic matter dynamics.
Global Change Biology, 15, 2009, 1570-1583.

Leifeld J., Reiser R., Oberholzer H.-R.
Consequences of conventional versus organic farming on soil carbon: results from a 27-year field experiment.
Agronomy Journal, 101, (5), 2009, 1204-1218.

Ammann C., Neftel A., Spirig, C., Leifeld J., Fuhrer J.
Stickstoff-Bilanz von Mähwiesen mit und ohne Düngung.
Agrarforschung, 16, (9), 2009, 348-353.

Anken T., Hermle, S., Leifeld J., Weisskopf P.
The effects of tillage systems on soil organic carbon content under moist, cold-temperate conditions.
In: 18th Triennial Conference International Soil Tillage Research Organisation (ISTRO). June 15-19, 2009, Izmir-Turkey. 2009.

Ammann C., Spirig C., Leifeld J., Neftel A.
Assessment of the nitrogen and carbon budget of two managed grassland fields.
Agriculture, Ecosystems & Environment, 133, 2009, 150-162.

Jens Leifeld, Michael Zimmermann, Jürg Fuhrer, Franz Conen
Storage and turnover of carbon in grassland soils along an elevation gradient in the Swiss Alps.
Global Change Biology, 15, 2009, 668-679.

Jens Leifeld
Einfluss der Bewirtschaftung auf den Bodenkohlenstoff in der Landwirtschaft.
Rundgespräche der Kommission für Ökologie, 35 Humus in B, 2009, 85-91.

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