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Paul, Birthe K. ,  Birnholz, Celine A. ,  Timler, Carl J. ,  Michalscheck, Mirja ,  Koge, 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

Margenot, Andrew J. ,  Singh, Bal Ram ,  Rao, Idupulapati M. ,  Sommer, Rolf ,  [Phosphorus fertilization and management in soils of Sub-Saharan Africa] ,  Phosphorus fertilization and management in soils of Sub-Saharan Africa

Margenot, Andrew J. ,  Paul, Birthe K. ,  Sommer, Rolf ,  Pulleman, Mirjam ,  Parikh, Sanjai ,  Fonte, Steven J. ,  [Can conservation agriculture improve phosphorus (P) availability in weathered soils? Effects of tillage and residue management on soil P status after 9 years in a Kenyan Oxisol] ,  Can conservation agriculture improve phosphorus (P) availability in weathered soils? Effects of tillage and residue management on soil P status after 9 years in a Kenyan Oxisol

Mukalama, John ,  Braslow, Juliet ,  Sommer, Rolf ,  [Long-term productivity and sustainability of crop-livestock systems through integrated soil fertility management] ,  Long-term productivity and sustainability of crop-livestock systems through integrated soil fertility management