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Secondary and micronutrients are important in enhancing crop productivity; yet, they are hardly studied in sub-Sahara Africa. In this region, the main focus has been on macronutrients but there is emerging though scattered evidence of crop productivity limitations by the secondary and micronutrie...


Kihara, JobSileshi, Gudeta W.Nziguheba, GeneroseZingore, ShamieSommer, Rolf[Replication Data for: Application of secondary nutrients and micronutrients increases crop yields in sub-Saharan Africa]Replication Data for: Application of secondary nutrients and micronutrients increases crop yields in sub-Saharan Africa

Soil degradation associated with poor soil fertility management practices is a major factor underlying poor agricultural productivity in sub-Saharan Africa. About 65% of the agricultural land is degraded, mainly due to low nutrient application, soil erosion and soil acidification. Increased ferti...


Zingore, ShamieMutegi, JamesAgesa, BeverlyTamene, LulsegedKihara, Job[Soil degradation in sub-Saharan Africa and crop production options for soil rehabilitation]Soil degradation in sub-Saharan Africa and crop production options for soil rehabilitation

In March 2013, 40 leading experts from across the world gathered at a workshop, hosted by the European Commission, Directorate General Joint Research Centre, Italy, to discuss the multiple benefits of soil carbon as part of a Rapid Assessment Process (RAP) project commissioned by Scientific Commi...


Milne, EleanorBanwart, Steven A.Noellemeyer, ElkeAbson, David JBallabio, CristianoBampa, FrancescaBationo, B. AndréBatjes, Niels H.Bernoux, MartialBhattacharyya, TapasBlack, HelainaBuschiazzo, Daniel E.Cai, ZucongCerri, Carlos EduardoCheng, KunCompagnone, ClaudeConant, Richard T.Coutinho, Heitor L.C.Brogniez, Delphine deCarvalho Balieiro, Fabiano deDuffy, ChristopherFeller, ChristianFidalgo, Elaine C.C.Figueira da Silva, CristianeFunk, RogerGaudig, GretaGicheru, Patrick TGoldhaber, MartyGottschalk, PiaGoulet, FredericGoverse, TessaGrathwohl, PeterJoosten, HansKamoni, Peter TKihara, JobKrawczynski, ReneLa Scala, NewtonLemanceau, PhilippeLi, LianqingLi, ZichuanMaron, Pierre-AlainMartius, ChristopherMelillo, JerryMontanarella, LucaNikolaidis, NikolaosNziguheba, GenerosePan, GenxingPascual, UnaiPaustian, KeithPiñeiro, GervasioPowlson, David S.Quiroga, AlbertoRichter, DanSigwalt, AnnieSix, JohanSmith, JoSmith, PeteStocking, MichaelTanneberger, FranziskaTermansen, MetteNoordwijk, Meine vanWesemael, Bas vanVargas, RodrigoLuiz Victoria, ReynaldoWaswa, Boaz S.Werner, DavidWichmann, SabineWichtmann, WendelinZhang, XuhuiZhao, YongcunZheng, JinweiZheng, Jufeng[Soil carbon, multiple benefits]Soil carbon, multiple benefits

Sommer, RolfPaul, Birthe K.Kihara, Job[The soil carbon dilemma in the humid tropics: cannot hoard it!?]The soil carbon dilemma in the humid tropics: cannot hoard it!?

Mutuo, P.Desta, L.Mango, N.Winowiecki, Leigh A.Kihara, JobAdolwa, Ivan S.Mvumi, B.Kabambe, V.Mapemba, L.Ngazi, H.Ikerra, S.Jere, Z.Sichangi, S.Mwale, M.Nyoka, I.Thierfelder, ChristianBekunda, Mateete A.Huising, Jeroen[A catalogue of tested crop, soil, and water management options under varied land degradation conditions and socio-economic environment in the target areas in Tanzania, Malawi, and Zambia]A catalogue of tested crop, soil, and water management options under varied land degradation conditions and socio-economic environment in the target areas in Tanzania, Malawi, and Zambia

Kizito, FredKihara, JobBekunda, Mateete A.Smith, GeorginaOdhong, Jonathan[Towards a food secure future: Sharing our research with farmers in Babati District, Tanzania]Towards a food secure future: Sharing our research with farmers in Babati District, Tanzania

Rangelands occupy 25% of the total land surface globally. In Africa, rangelands are estimated to cover 66% of the land surface, although there are variations from country to country. In Eastern Africa, for example, land surface coverage of rangeland areas varies from 44% in Uganda and 65% in Ethi...


Bolo, Peter OmondiSommer, RolfKihara, JobKinyua, MichaelNyawira, SylviaNotenbaert, An Maria Omer[Rangeland Degradation: Causes, Consequences, Monitoring Techniques and Remedies]Rangeland Degradation: Causes, Consequences, Monitoring Techniques and Remedies
Kihara, JobHuising, JeroenNziguheba, GeneroseZingore, Shamie[Omission trials conducted in 5 countries under AfSIS Phase 1 under CIAT]Omission trials conducted in 5 countries under AfSIS Phase 1 under CIAT

Agriculture is a major contributor to climate change, emitting the three major greenhouse gases (GHGs) – carbon dioxide (CO2), methane and nitrous oxide – into the atmosphere. According to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), the Agriculture, Forest...


Sommer, RolfSilva, Mayesse daNyawira, SylviaAbera, WuletawuTamene, LulsegedYaekob, TesfayeKihara, JobPiikki, KristinSöderström, MatsMargenot, Andrew J.[Soil carbon under current and improved land management in Kenya, Ethiopia and India: Dynamics and sequestration potentials]Soil carbon under current and improved land management in Kenya, Ethiopia and India: Dynamics and sequestration potentials

Phosphorus (P) is an essential nutrient but is commonly limiting for food production in tropical and subtropical maize cropping. The efficiency of P fertiliser uptake is often low (5–30%) for various site-specific reasons and so identifying the drivers of P efficiency for different systems is imp...


Das, BiancaHuth, NeilProbert, MervPaul, BirtheKihara, JobBolo, Peter OmondiRodriguez, DanielHerrero, MarioSchmidt, Susanne[Drivers of Phosphorus Efficiency in Tropical and Subtropical Cropping Systems]Drivers of Phosphorus Efficiency in Tropical and Subtropical Cropping Systems

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