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Okeyo, Jeremiah M.Norton, JayKoala, SaidouWaswa, Boaz S.Kihara, JobBationo, B. André[Impact of reduced tillage and crop residue management on soil properties and crop yields in a long-term trial in western Kenya]Impact of reduced tillage and crop residue management on soil properties and crop yields in a long-term trial in western Kenya

Several spatial analyses of neighboring plots are now available for improving the precision of variety trials. The objective of this study was to evaluate the efficiency of three commonly used spatial analyses, a nearest neighbor adjustment (NNA), a least squares smoothing (LSS), and a first-orde...


Yang, R.C.Ye, T.Z.Blade, S.F.Bandara, M.[Efficiency of spatial analyses of field pea variety trials]Efficiency of spatial analyses of field pea variety trials

In Nigeria, increased land-use intensity has depressed the use of fallow for soil fertility restoration. Crop yields have fallen, threatening food security. High cost limits farmers’ access to fertilizers. Reliance on crop-livestock interaction is plausible because animals provide manure. This pa...


Chianu, J.N.Tsujii, H.Manyong, Victor M.[Crop-livestock interaction in the savannas of Nigeria: nature and determinants of farmer decision to use manure for soil fertility maintenance]Crop-livestock interaction in the savannas of Nigeria: nature and determinants of farmer decision to use manure for soil fertility maintenance
Adolwa, Ivan S.Okoth, Peter F.Mulwa, Richard M.Esilaba, Anthony O.Mairura, Franklin S.Nambiro, Elizabeth[Analysis of communication and dissemination channels influencing the adoption of integrated soil fertility management in western Kenya]Analysis of communication and dissemination channels influencing the adoption of integrated soil fertility management in western Kenya
Fonte, Steven J.Vanek, Steven J.Oyarzun, PedroParsa, SoroushQuintero, Diana CarolinaRao, Idupulapati M.Lavelle, Patrick M.[Pathways to agroecological intensification of soil fertility management by smallholder farmers in the Andean highlands]Pathways to agroecological intensification of soil fertility management by smallholder farmers in the Andean highlands

Etyang, T.B.Okello, J.J.Zingore, ShamieOkth, P.F.Mairura, Franklin S.Mureith, A.Waswa, Boaz S.[Exploring relevance of agro input dealers in disseminating and communicating of soil fertility management knowledge: The case of Siaya and Trans Nzoia counties, Kenya.]Exploring relevance of agro input dealers in disseminating and communicating of soil fertility management knowledge: The case of Siaya and Trans Nzoia counties, Kenya.
Mutegi, Edwin MwitiBiu Kung'u , JamesMucheru-Muna, M.Pieter, PypersMugendi, Daniel Njiru[Complementary effects of organic and mineral fertilizers on maize production in the smallholder farms of Meru South District, Kenya]Complementary effects of organic and mineral fertilizers on maize production in the smallholder farms of Meru South District, Kenya

This study evaluated the response of four rain-fed lowland New Rice for Africa (NERICA) varieties (NERICA-L-12, NERICA-L-41, NERICA-L-42 and NERICA-L-56) and a popularly grown Oryza sativa (ITA 150) to nitrogen (0, 30, and 100 kg N ha-1). The interactions between nitrogen and variety were not sig...


Kamara, A.Y.Ekeleme, F.Omoigui, L.O.Chikoye, D.[Influence of nitrogen fertilization on yield and yield components of rainfed lowland NERIC rice in the northern Guinea savanna of Nigeria]Influence of nitrogen fertilization on yield and yield components of rainfed lowland NERIC rice in the northern Guinea savanna of Nigeria

Assessment and monitoring of soil resources is needed for ensuring environmental sustainability of rice production in sub-Saharan Africa (SSA). Diffuse reflectance spectroscopy has the potential to offer means to evaluate and monitor soils at large scale in an efficient, affordable and timely man...


Johnson, J.M.Vandamme, E.Senthilkumar, K.Sila, A.Shepherd, K.D.Saito, K.Saito, K.[Near-infrared, mid-infrared or combined diffuse reflectance spectroscopy for assessing soil fertility in rice fields in sub-Saharan Africa.]Near-infrared, mid-infrared or combined diffuse reflectance spectroscopy for assessing soil fertility in rice fields in sub-Saharan Africa.

Application of biochar has been shown to increase soil fertility and enable soil carbon sequestration, indicating potential for agricultural and environmental benefits from using locally produced biochar on African smallholder farms. However, previous studies have been rather short-term and littl...


Kätterer, T.Roobroeck, D.Andrén, O.Kimutai, G.Karltun, E.Kirchmann, H.Nyberg, G.Vanlauwe, BernardNowina, K.R. de[Biochar addition persistently increased soil fertility and yields in maizesoybean rotations over 10 years in sub-humid regions of Kenya]Biochar addition persistently increased soil fertility and yields in maizesoybean rotations over 10 years in sub-humid regions of Kenya

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