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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

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

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
Sommer, RolfBraslow, Juliet[African eco-efficient solutions to food insecurity and climate change]African eco-efficient solutions to food insecurity and climate change
Sommer, RolfPiggin, ColinFeindel, DavidAnsar, MuhammadDelden, Lona vanShimonaka, KayokoAbdalla, JihadDouba, OsamaEstefan, GeorgeHaddad, AtefHaj-Abdo, RousheenHajdibo, AliHayek, PierreKhalil, YaseenKhoder, AhmedRyan, John[Effects of zero tillage and residue retention on soil quality in the mediterranean region of Northern Syria]Effects of zero tillage and residue retention on soil quality in the mediterranean region of Northern Syria

Soil organic carbon (SOC) sequestration is important in the global carbon cycle and an integral part of many initiatives and policies to mitigate climate change. For efficient targeting of measures leading to SOC sequestration, it is necessary to know the actual SOC content (%) and a realistic ta...


Piikki, KristinSöderström, MatsSommer, RolfSilva, Mayesse daMunialo, SussyAbera, Wuletawu[A Boundary Plane Approach to Map Hotspots for Achievable Soil Carbon Sequestration and Soil Fertility Improvement]A Boundary Plane Approach to Map Hotspots for Achievable Soil Carbon Sequestration and Soil Fertility Improvement

Sommer, RolfPaul, Birthe K.Mukalama, JohnKihara, Job[Reducing losses but failing to sequester carbon in soils – the case of Conservation Agriculture and Integrated Soil Fertility Management in the humid tropical agro-ecosystem of Western Kenya]Reducing losses but failing to sequester carbon in soils – the case of Conservation Agriculture and Integrated Soil Fertility Management in the humid tropical agro-ecosystem of Western Kenya

Grasslands occupy almost half of the world's land area. Soil organic carbon (SOC) is a key indicator of soil fertility and grassland productivity. Increasing SOC stocks (so‐called SOC sequestration) improves soil fertility and contributes to climate change mitigation by binding atmospheric carbon...


Tessema, BezayeSommer, RolfPiikki, KristinSöderström, MatsNamirembe, SaraNotenbaert, An Maria OmerTamene, LulsegedNyawira, SylviaPaul, Birthe K.[Potential for soil organic carbon sequestration in grasslands in East African countries: A review]Potential for soil organic carbon sequestration in grasslands in East African countries: A review

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