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Eco efficiency of Integrated Soil Fertility Management in Western Kenya Sommer et al 2014 presented at 20th World Congress of Soil Science


Sommer, RolfMukalama, JKihara, JobKoala, SaidouBossio, Deborah A.Winowiecki, D[Eco efficiency of Integrated Soil Fertility Management in Western Kenya]Eco efficiency of Integrated Soil Fertility Management in Western Kenya
Autor: Kihara, Job

Sub-Saharan Africa (SSA) is plagued by low productivity and little research is available on the attainable responses and profitability to applied nutrients under variable environments. The objective of this study was to determine the attainable maize grain response to and potential of profitabili...


Kihara, Job[Replication Data for: Maize response to macronutrients and potential for profitability in sub-Saharan Africa]Replication Data for: Maize response to macronutrients and potential for profitability in sub-Saharan Africa

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
Kihara, JobMukalama, JAyuke, Fredrick O.Njoroge, SWaswa, Boaz S.Okeyo, J.Koala, SaidouBationo, B. André[Crop and soil response to tillage and crop residue application in a tropical ferralsol in sub-humid western Kenya]Crop and soil response to tillage and crop residue application in a tropical ferralsol in sub-humid western Kenya

Sommer, RolfKihara, JobGurmessa, BiyensaTamene, Lulseged[Crop soil simulation modeling]Crop soil simulation modeling

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!?

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

Improved understanding of soil fertility factors limiting crop productivity is important to develop appropriate soil and nutrient management recommendations in sub-Saharan Africa. Diagnostic trials were implemented in Kenya, Malawi, Mali, Nigeria and Tanzania, as part of the African Soils Informa...


Kihara, JobNziguheba, GeneroseZingore, ShamieCoulibaly, AdamaEsilaba, Anthony O.Kabambe, VernonNjoroge, SamuelPalm, CherylHuising, Jeroen[Understanding variability in crop response to fertilizer and amendments in sub-Saharan Africa]Understanding variability in crop response to fertilizer and amendments in sub-Saharan Africa

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