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Long term Biochar Trials in Kenya

In this project, we report findings from the 15 years of meta-replicated trials, which are assessing the effect of biochar addition on maize and soybean rotations in smallholder farmers’ fields at three sites in two sub-humid regions of Kenya. Specific objectives were to analyse the effects of biochar input on: i) the yield of maize and soybean without and with inorganic fertiliser, ii) yield reliability, i.e. random variation among seasons, and iii) soil C and N stocks, extractable phosphorus (P) and potassium (K) content, acidity, water-holding capacity and bulk density.

Citation

Data and Resources

Additional Info

Field Value
Creator Roobroeck, Dries
Creator Affiliation International Institute of Tropical Agriculture (IITA)
Creator email D.Roobroeck@cgiar.org
Creator ID Type ORCID
Creator ID 0000-0003-3176-4444
Subject Vocab (AGROVOC/GACS/CAB) Agriculture,Intensification,Field,Experiment,Small holder farmers,Stability,Climate change,Fungi,Bactrocera dorsalis,Carbon sequestration,Soil,Yield,Biochar,Kenya,Season,Maize,Soybean
Subject(s)
Publisher International Institute of Tropical Agriculture (IITA)
Contributor Person 1 Thomas Kätterer
Contributor Person 1 Affiliation Swedish University of Agricultural Sciences (SLU)
Contributor Person 1 email
Contributor Person 2 Olof Andrén
Contributor Person 2 Affiliation Swedish University of Agricultural Sciences (SLU)
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Contributor Person 3 Geoffrey Kimutai
Contributor Person 3 Affiliation International Institute of Tropical Agriculture (IITA)
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Contributor Person 4 Erik Karltun
Contributor Person 4 Affiliation Swedish University of Agricultural Sciences (SLU)
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Contributor Person 5 Holger Kirchmann
Contributor Person 5 Affiliation Swedish University of Agricultural Sciences (SLU)
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Contributor Person 6 Gert Nyberg
Contributor Person 6 Affiliation Swedish University of Agricultural Sciences (SLU)
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Contributor Person 7 Bernard Vanlauwe
Contributor Person 7 Affiliation International Institute of Tropical Agriculture (IITA)
Contributor Person 7 email b.vanlauwe@cgiar.org
Contributor Person 8 Kristina Röing de Nowina
Contributor Person 8 Affiliation Swedish University of Agricultural Sciences (SLU)
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Contributor Project Lead Organisation Center International Institute of Tropical Agriculture (IITA)
Contributor Project Lead Center International Institute of Tropical Agriculture (IITA)
Contributor Initiative/CRP CGIAR Research Program on Grain Legumes and Dryland Cereals
Contributor Partner Swedish University of Agricultural Sciences (SLU)
Contributor Donor Swedish Research Council for Environment, Agricultural Sciences, and Spatial Planning (FORMAS)
Contributor Project Long-term biochar experiment Kenya
Project ID PJ-003502
Contributor Affiliation
Open-Access status Open Access
Production Date 2006-11-15
Embargo End Date
Content Type Dataset
File Format csv
Identifier Type DOI
Identifier https://doi.org/10.25502/38kc-eg87/d
Identifier Citation Kätterer, T., Roobroeck, D., Kimutai, G., Karltun, E., Nyberg, G., Sundberg, C., & de Nowina, K. R. (2022). Maize grain yield responses to realistic biochar application rates on smallholder farms in Kenya. In Agronomy for Sustainable Development (Vol. 42, Issue 4). Springer Science and Business Media LLC. https://doi.org/10.1007/s13593-022-00793-5
Source Long-term biochar experiment Kenya
Language English
Relation Not Applicable
Agroecological Zone Semiarid warm tropics
Coverage Region Eastern Africa
Coverage country Kenya
Coverage Admin Unit Not Applicable
Coverage Y (Latitude) 1.44197
Coverage X (Longitude) 38.4314
Coverage Start Date 2006-11-15
Coverage End Date 2023-02-15
Contact Roobroeck, Dries; Soil Fertility Management Specialist, International Institute of Tropical Agriculture (IITA)
Contact Email D.Roobroeck@cgiar.org
Restriction CC-BY 4.0
Email Permission None
Rights CC-BY 4.0