General: Lab determined topsoil bulk density, contents of sand, clay and organic carbon in Murugusi, W. Kenya, together with spatial coordinates of where the soil samples were taken (rounded to the closest center point of a 250 m × 250 m raster). All lab analyses were carried out at the ILRI/CIAT...
Piikki, Kristin
,
Söderström, Mats
,
Sommer, Rolf
,
Silva, Mayesse da
,
[Physical topsoil properties in Murugusi, Western Kenya]
,
Physical topsoil properties in Murugusi, Western Kenya
Zomer, Robert J.
,
Bossio, Deborah A.
,
Sommer, Rolf
,
Verchot, Louis V.
,
[Replication Data for: Global Sequestration Potential of Increased Organic Carbon in Cropland Soils]
,
Replication Data for: Global Sequestration Potential of Increased Organic Carbon in Cropland Soils
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, Rolf
,
Verchot, Louis V.
,
[Global Sequestration Potential of Increased Organic Carbon in Cropland Soils]
,
Global Sequestration Potential of Increased Organic Carbon in Cropland Soils
The provision of food requirements for current and future generations can be guaranteed through agricultural intensification options that safeguard the production resource base. Over the years, the debate on sustainable agricultural intensification has not been matched with due regard to how the ...
Kihara, Job
,
Bolo, Peter Omondi
,
Ayaga, George
,
Mukulama, John
,
Margenot, Andrew J.
,
Sommer, Rolf
,
[Agronomic management controls microbial populations in soils of western Kenya]
,
Agronomic management controls microbial populations in soils of western Kenya
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, Birthe
,
Groot, Jeroen C.J.
,
Birnholz, Celine A.
,
Nzogela, Beatus
,
Notenbaert, An Maria Omer
,
Woyessa, Kassahun
,
Sommer, Rolf
,
Nijbroek, Ravic
,
Tittonell, 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
Kinyua, Michael
,
Cao Diogo, Rodrigue V.
,
Sibomana, Jean
,
Bolo, Peter Omondi
,
Gbedjissokpa, Gloria
,
Mukiri, Jessica
,
Mukalama, John
,
Paul, Birthe
,
Sommer, Rolf
,
Kihara, Job
,
[Green manure cover crops in Benin and Western Kenya - A review.]
,
Green manure cover crops in Benin and Western Kenya - A review.
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, Rolf
,
Mukalama, John
,
Parikh, 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
Margenot, Andrew J.
,
Pulleman, Mirjam
,
Sommer, Rolf
,
Paul, Birthe K.
,
Parikh, Sanjai J.
,
Jackson, Louise E.
,
Fonte, Steven J.
,
[Biochemical proxies indicate differences in soil C cycling induced by long-term tillage and residue management in a tropical agroecosystem]
,
Biochemical proxies indicate differences in soil C cycling induced by long-term tillage and residue management in a tropical agroecosystem