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Kuntu-Blankson, KateSommer, RolfKühne, Ronald F.Gluecks, Ilona V.Nyawira, SylviaIsselstein, Johannes[Model-Based Assessment of Grazing Impact on Soil Carbon Stocks and Dynamics of a Kenyan Rangeland]Model-Based Assessment of Grazing Impact on Soil Carbon Stocks and Dynamics of a Kenyan Rangeland

Rationale The Soil Protection and Rehabilitation for Food Security global program, commissioned by the German Federal Ministry for Economic Cooperation and Development (BMZ) and implemented by GIZ and partners in Benin, Burkina Faso, Ethiopia, India and Kenya, addresses the issue of soil degrada...


Sommer, RolfGholkar, MadhavKumbhar, Nitin[Yield and soil nitrous oxide emissions of Vigna radiata under contrasting fertilizer management practices in Maharashtra, India]Yield and soil nitrous oxide emissions of Vigna radiata under contrasting fertilizer management practices in Maharashtra, India

Birnholz, Celine A.Kalcić, ŠpelaKoge, JessicaPaul, Birthe K.Braslow, JulietSommer, RolfNotenbaert, An Maria Omer[La climato-intelligence des mesures de la GIZ pour la protection et réhabilitation des sols dans les départements Zou et Collines au Bénin.]La climato-intelligence des mesures de la GIZ pour la protection et réhabilitation des sols dans les départements Zou et Collines au Bénin.

Water stress is a major crop production constraint for common bean (Phaseolus vulgaris L). The response of bush and climbing bean to excessive and minimal soil moisture at various plant growth stages was investigated under greenhouse for two growing periods; September-February 2016 and March-July...


Ntukamazina, NepomusceneOnwonga, Richard N.Sommer, RolfMukankusi, Clare MugishaMburu, JohnRubyogo, Jean-Claude[Effect of excessive and minimal soil moisture stress on agronomic performance of bush and climbing bean (Phaseolus vulgaris L.)]Effect of excessive and minimal soil moisture stress on agronomic performance of bush and climbing bean (Phaseolus vulgaris L.)
Namirembe, SaraPiikki, KristinSommer, RolfSöderström, MatsTessema, Bezaye Dr.Nyawira, Sylvia Sarah[Soil organic carbon in agricultural systems of six countries in East Africa – a literature review of status and carbon sequestration potential]Soil organic carbon in agricultural systems of six countries in East Africa – a literature review of status and carbon sequestration potential

Sommer, RolfKihara, JobKetter, ChristinaSmith, Georgina[Tropical soils can help us make agriculture carbon neutral and meet climate targets]Tropical soils can help us make agriculture carbon neutral and meet climate targets
Demelash, NigusBayu, WondimuTesfaye, SitotZiadat, Feras M.Sommer, Rolf[Current and residual effects of compost and inorganic fertilizer on wheat and soil chemical properties]Current and residual effects of compost and inorganic fertilizer on wheat and soil chemical properties

The Scoping Study on Soil Research and Management to Enrich Bilateral German Development Cooperation Programs, conducted by the International Center for Tropical Agriculture (CIAT) and funded by the German Federal Ministry for Economic Cooperation and Development (BMZ) with support from the Germa...


Snyder, Katherine A.Okolo, WendySommer, RolfBraslow, Juliet[Synthesis Report on Five-Country Institutional Analysis Produced for the CIAT Scoping Study on Soil Research and Management to Enrich Bilateral German Development Cooperation Programs]Synthesis Report on Five-Country Institutional Analysis Produced for the CIAT Scoping Study on Soil Research and Management to Enrich Bilateral German Development Cooperation Programs

Paul, Birthe K.Birnholz, Celine A.Timler, Carl J.Michalscheck, MirjaKoge, J.Groot, Jeroen C.J.Sommer, Rolf[Assessing and improving organic matter, nutrient dynamics and profitability of smallholder farms in Ethiopia and Kenya: proof of concept of using the whole farm model FarmDESIGN for prioritization of GIZ development interventions]Assessing and improving organic matter, nutrient dynamics and profitability of smallholder farms in Ethiopia and Kenya: proof of concept of using the whole farm model FarmDESIGN for prioritization of GIZ development interventions

The Kalkulator is a rapid ex-ante impact assessment tool with minimum data requirements that allows users to benchmark and explore multiple environmental impacts of interventions (e.g. productivity-enhancing agricultural practices, soil protection measures) on a farm using four indicators: greenh...


Birnholz, Celine A.Sommer, RolfNotenbaert, An Maria OmerPaul, Birthe K.[The Kalkulator: a minimum data tool for rapid ex-ante impact assessment of productivity, nitrogen balance, soil balance, and GHG emissions – Version 1.0.1]The Kalkulator: a minimum data tool for rapid ex-ante impact assessment of productivity, nitrogen balance, soil balance, and GHG emissions – Version 1.0.1

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