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Tamene, LulsegedMponela, PowellNdengu, GiftKihara, Job[Assessment of maize yield gap and major determinant factors between smallholder farmers in the Dedza district of Malawi]Assessment of maize yield gap and major determinant factors between smallholder farmers in the Dedza district of Malawi

The application of nitrogen in a soil under agricultural production is subject to several pathways including de-nitrification, leaching and recovery by an annual crop. This is as well greatly influenced by the management practices, nitrogen source and soil conditions. The main objective of this s...


Kimetu, J.M.Mugendi, DNBationo, B. AndréPalm, C.A.Mutuo, PKKihara, JobNandwa, SMGiller, Ken E.[Partial balance of nitrogen in a maize cropping systems in humic nitisol of Central Kenya]Partial balance of nitrogen in a maize cropping systems in humic nitisol of Central Kenya

Crop production in sub-Sahara Africa is constrained by low soil phosphorus (P) content. A study was conducted in western Kenya to explore alternative P inputs and ways of optimizing their effectiveness and profitability. A field experiment established in 2007 studied the effects of Minjingu phosp...


Savini, IsaacKihara, JobKoala, SaidouMukalama, JohnWaswa, Boaz S.Bationo, B. André[Long-term effects of TSP and Minjingu phosphate rock applications on yield response of maize and soybean in a humid tropical maize–legume cropping system]Long-term effects of TSP and Minjingu phosphate rock applications on yield response of maize and soybean in a humid tropical maize–legume cropping system

Concentrations and identity of ions in the soil solution may affect soil phosphorus (P) reactions and P availability. In this study, the magnitude of these reactions was evaluated following the application of Minjingu phosphate rock (MPR) combined with chloride and carbonate salts of Na and Ca wi...


Savini, IsaacKoala, SaidouKihara, Job[Minjingu phosphate rock availability in low-pH highly weathered soil as affected by added salts]Minjingu phosphate rock availability in low-pH highly weathered soil as affected by added salts

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

Many food production systems in sub-Saharan Africa are constrained by phosphorus (P). We hypothesized that within legume-cereal rotation systems: targeting P to the legume phase leads to higher system productivity, and that use of grain legumes leads to better economic returns than use of herbace...


Kihara, JobVanlauwe, BernardWaswa, Boaz S.Kimetu, J.M.Chianu, J.N.Bationo, B. André[Strategic phosphorus application in legume-cereal rotations increases land productivity and profitability in Western Kenya]Strategic phosphorus application in legume-cereal rotations increases land productivity and profitability in Western Kenya
Mponela, PowellTamene, LulsegedNdengu, GiftMagreta, RuthKihara, JobMango, Nelson[Determinants of integrated soil fertility management technologies adoption by smallholder farmers in the Chinyanja Triangle of Southern Africa]Determinants of integrated soil fertility management technologies adoption by smallholder farmers in the Chinyanja Triangle of Southern Africa

Conservation agriculture (CA) (zero tillage + organic inputs as surface residue) is believed to improve soil nutrient status, soil structure, control soil erosion, and also enhance soil fauna diversity. Despite the widespread interest in CA, empirical evidence of the benefits of CA on soil fauna ...


Ayuke, Fredrick O.Kihara, JobAyaga, GeorgeMicheni, Alfred N.[Conservation Agriculture Enhances Soil Fauna Richness and Abundance in Low Input Systems: Examples From Kenya]Conservation Agriculture Enhances Soil Fauna Richness and Abundance in Low Input Systems: Examples From Kenya
Kihara, JobTamene, LulsegedMassawe, P.Bekunda, Mateete A.[Agronomic survey to assess crop yield, controlling factors and management implications: a case-study of Babati in northern Tanzania]Agronomic survey to assess crop yield, controlling factors and management implications: a case-study of Babati in northern Tanzania

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