Dr. Rolf Sommer

Country of current residence

Germany

Current position

Senior Scientist Soil Health and Climate Change

Current institute employer

International Center for Agricultural Research in the Dry Areas (ICARDA)

Since

2019

Website current institute
Previous positions

2001 - 2004 Postdoc at CIMMYT, Mexico

2004 - 2007 Senior Researcher at ZEF

2007 - 2013 Senior Researcher at ICARDA

2013 - 2018 Senior Scientist at the International Center for Tropical Agriculture (CIAT), Nairobi, Kenya

Profession

Agricultural Engineer

Specialisation

Crop modeling, soil scienc, restoration of degraded landscapes

2010

Djumaniyazova, Y., R. Sommer, N. Ibragimov, J. Ruzimov, J. Lamers, and P. Vlek.  2010.  Simulating water use and N response of winter wheat in the irrigated floodplains of Northwest Uzbekistan.  Field Crops Research, 116   : 239-251   .

2009

Mac Carthy, D.S., Sommer R. and P.L.G. Vlek.  2009.  Modeling the impacts of contrasting nutrient and residue management practices on grain yield of sorghum (Sorghum bicolour (L.) Moench) in a semi-arid region of Ghana using APSIM.  Field Crops Research, 113   : 105-115   .

2008

Sommer, R., Kienzler, K., Conrad, C., Ibragimov, N., Lamers, J.P.A., Martius, C. and P.L.G. Vlek.  2008.  Evaluation of CropSyst for simulating the potential yield of cotton in Uzbekistan.  Agronomy for Sustainable Development, 28(2)   : 345-354   . Further Information

2007

Sommer, R., P.C. Wall and B. Govaerts.  2007.  Model-based assessment of maize cropping under conventional and zero-tillage in highland Mexico.  Soil & Tillage Research, 94   : 83-100   .

2005

Sommer, R., C. Martius, M. Müller, J.P.A. Lamers, G. Rücker, S. Shumilov, B. Tischbein and P.L.G. Vlek.  2005.  Integrated Farm-Scale Modelling of Land, Water and Resource Allocation in the Khorezm Region of Uzbekistan.  In: Proceedings of the International Conference “The Global Food & Product Chain – Dynamics, Innovations, Conflicts, Strategies”. Centre for Agriculture in the Tropics and Subtropics, University of Hohenheim, Stuttgart

2004

Sommer, R., P.L.G. Vlek, T.D.d.A. Sá, K. Vielhauer, R.d.F.R. Coelho, and H. Fölster.  2004.  Nutrient balance of shifting cultivation by burning or mulching in the Eastern Amazon – evidence for subsoil nutrient accumulation.  Nutrient Cycling in Agroecosystems, 68   : 257–271   .

2003

Sommer, R., J.W. White, P.C. Wall and K.D. Sayre.  2003.  Model-based assessment of maize cropping under conventional and zero-tillage in highland Mexico – preliminary results.  Poster presented at the 2003 Annual Meetings of the ASA-CSSA-SSSA, Denver

2001

Sommer, R., T.D. de A. Sá, K. Vielhauer, H. Fölster and P.L.G. Vlek.  2001.  Water and nutrient balance under slash-and-burn agriculture in the Eastern Amazon, Brazil - The role of a deep rooting fallow vegetation.  In: W.J.Horst, M.K.Schenk, A.Bürkert, N.Claassen, H.Flessa, W.B.Frommer, H.E.Goldbach, H.-W.Olfs, V.Römheld, U.Sattelmacher, U.Schmidhalter, S.Schubert, N.v.Wirén, and L.Wittenmeyer (eds.): Plant Nutrition Food Security and Sustainability of Agro-Ecosystems through Basic and Applied Research. Kluwer Academic Publishers.   1014-1015. 

2000

Sommer, R.  2000.  Water and nutrient dynamic of slash-and-mulch agriculture in the Eastern Amazon.  Doctoral thesis at  Faculty of Agriculture, University of Göttingen.  Cuvillier Verlag Göttingen   Further Information

Additionals, Curriculum Vitae
and Downloads
Research countries
  • Uzbekistan

Rolf Sommer

Former Division/Group:
Ecology and Natural Resources Management

Office E-Mail:
r.sommer(at)cgiar.org

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