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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
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

Sommer, RolfGlazirina, M.Yuldashev, TulkunOtarov, AIbraeva, MMartynova, LBekenov, MKholov, BIbragimov, NKobilov, RKaraev, SSultonov, MKhasanova, FEsanbekov, MMavlyanov, DIsaev, S.Abdurahimov, SIkramov, RShezdyukova, LPauw, E. de[Impact of climate change on wheat productivity in Central Asia]Impact of climate change on wheat productivity in Central Asia

When assessing soil organic carbon (SOC) sequestration and its climate change (CC) mitigation potential at global scale, the dynamic nature of soil carbon storage and interventions to foster it should be taken into account. Firstly, adoption of SOC-sequestration measures will take time, and reaso...


Sommer, RolfBossio, Deborah A.[Dynamics and climate change mitigation potential of soil organic carbon sequestration]Dynamics and climate change mitigation potential of soil organic carbon sequestration
Araya, TesfayNyssen, JanGovaerts, BramDeckers, JozefSommer, RolfBauer, HansGebrehiwot, KindeyaCornelis, Wim M.[Seven years resource-conserving agriculture effect on soil quality and crop productivity in the Ethiopian drylands]Seven years resource-conserving agriculture effect on soil quality and crop productivity in the Ethiopian drylands

Margenot, Andrew J.Sommer, RolfParikh, Sanjai J.[Soil Phosphatase Activities across a Liming Gradient under Long-Term Managements in Kenya]Soil Phosphatase Activities across a Liming Gradient under Long-Term Managements in Kenya

The role of soil organic carbon in global carbon cycles is receiving increasing attention both as a potentially large and uncertain source of CO2 emissions in response to predicted global temperature rises, and as a natural sink for carbon able to reduce atmospheric CO2. There is general agreemen...


Zomer, Robert J.Bossio, Deborah A.Sommer, RolfVerchot, Louis V.[Global Sequestration Potential of Increased Organic Carbon in Cropland Soils]Global Sequestration Potential of Increased Organic Carbon in Cropland Soils

Livestock productivity in East Africa, and especially in Tanzania, remains persistently low, while greenhouse gas (GHG) emission intensities are among the highest worldwide. This mixed methods study aims to explore sustainable livestock intensification options that reduce agro-environmental trade...


Paul, BirtheGroot, Jeroen C.J.Birnholz, Celine A.Nzogela, BeatusNotenbaert, An Maria OmerWoyessa, KassahunSommer, RolfNijbroek, RavicTittonell, Pablo A.[Reducing agro-environmental trade-offs through sustainable livestock intensification across smallholder systems in Northern Tanzania]Reducing agro-environmental trade-offs through sustainable livestock intensification across smallholder systems in Northern Tanzania

Phosphate rock (PR) is an alternative fertilizer to increase the P content of P-deficient weathered soils. We evaluated the effects of fertilizer form on indicators of biological cycling of P using an on-farm trial on a Rhodic Kandiudox in western Kenya. Treatment plots were sampled after 13 crop...


Margenot, Andrew J.Sommer, RolfMukalama, JohnParikh, Sanjai J.[Biological P cycling is influenced by the form of P fertilizer in an Oxisol]Biological P cycling is influenced by the form of P fertilizer in an Oxisol

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