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Soil erosion rates are exacerbated in sloping arable lands of Central Kenya due mainly to the high soil disturbance caused by potato hilling. A field study was conducted in runoff plots to quantify the effect of potato hilling on soil loss, soil moisture distribution and soil temperature. Three h...


Nyawade, S.Karanja, N.Gachene, C.K.K.Schulte-Geldermann, ElmarParker, M.[Effect of potato hilling on soil temperature, soil moisture distribution and sediment yield on a sloping terrain]Effect of potato hilling on soil temperature, soil moisture distribution and sediment yield on a sloping terrain

Purpose – Potato is a major food staple in Africa, but its production is constrained by poor quality of seed. A recent private–public partnership in Tanzania resulted in introduction of new higher yielding varieties. The purpose of this paper is to examine smallholder farmers’ motivations to inve...


Okello, J.J.Lagerkvist, C.J.Kakuhenzire, R.Parker, M.Schulte-Geldermann, Elmar[Combining means-end chain analysis and goal-priming to analyze Tanzanian farmers’ motivations to invest in quality seed of new potato varieties]Combining means-end chain analysis and goal-priming to analyze Tanzanian farmers’ motivations to invest in quality seed of new potato varieties

Effective management of potato diseases such as bacterial wilt and late blight depends to a large extent on farmers’ knowledge of the diseases as well as on the integration of recommended management methods in their daily practices. Late blight has continued to be a dominant potato disease for ma...


Tafesse, S.Damtew, EliasMierlo, B. vanLie, R.Lemaga, B.Sharma, K.Leeuwis, C.Struik, Paul C.[Farmers' knowledge and practices of potato disease management in Ethiopia]Farmers' knowledge and practices of potato disease management in Ethiopia

Bacterial wilt, caused by Ralstonia solanacearum, is emerging as a major threat to potato production in Ethiopia, reaching epidemic proportions in the Chencha district recently, with a prevalence of 97% of potato fields in 2015. The recent disease outbreak in the district coincided with a signifi...


Abdurahman, A.Griffin, D.Elphinstone, J.Struik, P.C.Schulz, S.Schulte-Geldermann, ElmarSharma, K.[Molecular characterization of Ralstonia solanacearum strains from Ethiopia and tracing potential source of bacterial wilt disease outbreak in seed potatoes]Molecular characterization of Ralstonia solanacearum strains from Ethiopia and tracing potential source of bacterial wilt disease outbreak in seed potatoes

Potato is the most important non-grain crop in the world. Therefore, understanding the potential impacts of climate change on potato production is critical for future global food security. The SUBSTOR-Potato model was recently evaluated across a wide range of growing conditions, and improvements ...


Raymundo, R.Asseng, SentholdRobertson, R.Petsakos, A.Hoogenboom, GerritQuiróz, R.Hareau, G.Wolf, J.[Climate change impact on global potato production]Climate change impact on global potato production

Competition for nitrogen (N) and phosphorous (P) under potato-based intercropping systems decreases the level of nutrients available for potato and subsequently influences nitrogen and phosphorous use efficiency. A field trial was conducted for four consecutive seasons between 2014 short rains an...


Gitari, H.I.Karanja, N.Gachene, C.K.K.Kamau, S.Sharma, K.Schulte-Geldermann, Elmar[Nitrogen and phosphorous uptake by potato (Solanum tuberosum L.) and their use efficiency under potato-legume intercropping systems]Nitrogen and phosphorous uptake by potato (Solanum tuberosum L.) and their use efficiency under potato-legume intercropping systems

Potato is one of the most important food crops for smallholder farmers in the Ethiopian highlands. Diseases, particularly bacterial wilt (caused by Ralstonia solanacearum) and late blight (caused by Phytophthora infestans), are among the major constraints of potato production, despite continuous ...


Damtew, EliasTafesse, S.Lie, R.Mierlo, B. vanLemaga, B.Sharma, K.Struik, P.C.Leeuwis, C.[Diagnosis of management of bacterial wilt and late blight in potato in Ethiopia: A systems thinking perspective]Diagnosis of management of bacterial wilt and late blight in potato in Ethiopia: A systems thinking perspective

The Andean region is the most important center of potato diversity in the world. The global warming trend which has taken place since the 1950s, that is 2-3 times the reported global warming and the continuous presence of extreme events makes this region a live laboratory to study the impact of c...


Quiróz, R.Ramírez, D.Kroschel, J.Andrade-Piedra, J.L.Barreda, CarolinaCondori, B.Mares, V.Monneveux, P.Pérez, W.[Impact of climate change on the potato crop and biodiversity in its center of origin]Impact of climate change on the potato crop and biodiversity in its center of origin

China is the largest worldwide potato producer where around half of the crops is planted in the semi-arid region frequently affected by water restriction. While innovative methods are needed for water-saving irrigation methods, the use of low-cost and environmental-friendly technology must be pri...


Qin, J.Ramírez, D.Xie, K.Li, W.Yactayo, W.Jin, L.Quiróz, R.[Is partial root-zone drying more appropriate than drip irrigation to save water in China? A preliminary comparative analysis for potato cultivation]Is partial root-zone drying more appropriate than drip irrigation to save water in China? A preliminary comparative analysis for potato cultivation

Phosphorus (P) is an essential element and its efficient use is of global importance. This study evaluated the effect of growing potato under legume intercrops on P uptake and use efficiency indices: P harvest index (PHI), P uptake efficiency (PuPE), P partial factor productivity (PPFP) and P par...


Gitari, H.I.Nyawade, S.Kamau, S.Karanja, N.N.Gachene, C.K.K.Schulte-Geldermann, Elmar[Agronomic assessment of phosphorus efficacy for potato (Solanum tuberosum L) under legume intercrops.]Agronomic assessment of phosphorus efficacy for potato (Solanum tuberosum L) under legume intercrops.

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