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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

Eco efficiency of Integrated Soil Fertility Management in Western Kenya Sommer et al 2014 presented at 20th World Congress of Soil Science


Sommer, RolfMukalama, JKihara, JobKoala, SaidouBossio, Deborah A.Winowiecki, D[Eco efficiency of Integrated Soil Fertility Management in Western Kenya]Eco efficiency of Integrated Soil Fertility Management in Western Kenya

The yield gap has arisen again as a focus for agricultural research to ensure food security and economic growth for farmers around the world. To examine this renewed interest, we carried out a review of key literature in the field of yield gap analysis to identify important gaps in research and a...


Snyder, Katherine A.Miththapala, SriyanieSommer, RolfBraslow, Juliet[The yield gap: closing the gap by widening the approach]The yield gap: closing the gap by widening the approach

Secondary and micronutrients are important in enhancing crop productivity; yet, they are hardly studied in sub-Sahara Africa. In this region, the main focus has been on macronutrients but there is emerging though scattered evidence of crop productivity limitations by the secondary and micronutrie...


Kihara, JobSileshi, Gudeta W.Nziguheba, GeneroseKinyua, MichaelZingore, ShamieSommer, Rolf[Application of secondary nutrients and micronutrients increases crop yields in sub-Saharan Africa]Application of secondary nutrients and micronutrients increases crop yields in sub-Saharan Africa
Djanibekov, NodirDjanibekov, UtkurSommer, RolfPetrick, Martin[Cooperative agricultural production to exploit individual heterogeneity under a delivery target: The case of cotton in Uzbekistan]Cooperative agricultural production to exploit individual heterogeneity under a delivery target: The case of cotton in Uzbekistan

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