Department of Soil Science
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Recent Submissions
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Comparative analysis of immediate and residual effects of farmyard manure, triple superphosphate, and lime on maize yields in western Kenya
(African Journal of Agricultural Research, 2023-10-26)The effects of farmyard manure (FYM) and triple superphosphate (TSP) as sources of phosphorus, when applied with or without lime, on selected soil chemical properties, and the initial and residual maize yields, were ... -
Soil Acidity and Liming Handbook for Kenya
(Research gate, 2023-07)Soil acidity develops from a combination of natural and anthropogenic processes. Its effects can be evaluated through its impact on soil’s physical, chemical, and biological activities that ultimately affect nutrient ... -
Promoting Conservation Agriculture through Push-Pull Technology as an Agroecological Transition
(Maseno University, 2023)Low soil fertility, weeds, pests, and climatic change severely threaten crop productivity and agricultural sustainability, especially in SSA. Despite decades of research finding adequate technical solutions for most ... -
The use of phosphate rocks in East Africa: A review
(Indian journals, 2023-04-06)The use of locally available phosphate rock (PR) has often been proposed as a cheaper alternative to the more expensive superphosphate fertilizers to alleviate severe phosphorus deficiencies that threaten food security in ... -
Influence of plant density and nitrogen application on growth and quality of sweet pepper (capsicum annuum) in Uasin Gishu county
(ResearchGate, 2021)Sweet pepper an important export in Uasin Gishu had been facing a problem of rejection at the international market due to failure to meet the specified quality standards. The field experiment was conducted during the ... -
Influence of plant density and nitrogen application on growth and quality of sweet pepper (capsicum annuum) in Uasin Gishu county
(Research Gate, 2020)Sweet pepper an important export in Uasin Gishu had been facing a problem of rejection at the international market due to failure to meet the specified quality standards. The field experiment was conducted during the ... -
Novel sources of resistance to blast disease in finger millet
(2020)Finger millet (Eleusine coracana (L.) Gaertn. subsp. coracana) is the most important millet in eastern Africa and perhaps the oldest domesticated cereal grain in Africa. One of the major factors limiting finger millet ... -
Effect of nitrogen sources on the yield of common bean (Phaseolus vulgaris) in western Kenya
(2018)Depletion of soil nutrients due to continuous cultivation without adequate external fertilization is one of the challenges facing many smallholder farmers in western Kenya. This study was conducted to assess the effects ... -
Recent advances in the use of Tithonia diversifolia green manure for soil fertility management in Africa: A review
(Agricultural Research Communication Centre, 2020)Tithonia biomass transfer was presented as a technology that would replenish infertile soils, enhance food security and eradicate poverty in Africa in the 1990s. Since then, a huge volume of research has been conducted ... -
Depletion of phosphate rock reserves and world food crisis: Reality or hoax?
(African Journal of Agricultural Research, 2020)Phosphate rock (PR) deposits are the major source of phosphate (P) fertilizers for soil fertility replenishment. The demand for P fertilizers in the year 2014 was 42,706,000 tons and was expected to reach 46,648,000 tons ... -
Evaluation of crop arrangement and phosphorus rate on performance of maize-common bean intercropping in western Kenya
(Archives of Agriculture and Environmental Science, 2020)The effect of phosphorus (P) rate and crop arrangement on the performance of component crops in maize-bean intercropping systems was investigated at two sites; Malanga and Bugeng’i in western Kenya. A split plot design ... -
Response of soybean (Glycine max L.) to application of lime and phosphate fertilizer in an acid soil of western Kenya
(Research gate, 2020)The effect of combining lime and phosphate fertilizer on the performance of soybean (Glycine max L.) was investigated in a pot experiment consisting of nine treatments of three rates of lime (0, 4 and 8 t ha−1) in a ... -
Effects of Vermicompost, Tithonia Green Manure and Urea on Quality of Swiss Chard (Beta Vulgaris L. Var. Cicla L.) in Kenya
(Canadian Center of Science and Education, 2021)Swiss chard (Beta vulgaris L. var. cicla) is a popular vegetable because it is nutritious, robust, easy to grow. It requires regular applications of nitrogen, which causes accumulation of oxalates and nitrates within the ... -
Response of soybean (Glycine max L.) to application of lime and phosphate fertilizer in an acid soil of western Kenya
(Archives of Agriculture and Environmental Science, 2020)The effect of combining lime and phosphate fertilizer on the performance of soybean (Glycine max L.) was investigated in a pot experiment consisting of nine treatments of three rates of lime (0, 4 and 8 t ha−1) in a factorial ... -
An agronomic and economic evaluation of integrated use of Calliandra callothyrsus and maize stover with urea in western Kenya
(2014)The agronomic effectiveness of integrating organic and inorganic nutrient sources has been demonstrated in Kenya but economic analysis is often lacking in such studies thus denying farmers the ... -
Response of the African nightshade to phosphate fertilizer application in Western Kenya
(Scholars Research Library, 2013)Although the African nightshade is increasingly becoming an important vegetable in Kenya, the consumer demand has not been met due to its low yields occasioned by lack of fertilizer use. The general belief is that traditional ... -
Effects of organic and inorganic materials on soil acidity and phosphorus availability in a soil incubation study
(Hindawi, 2012)We tested the effects of two organic materials (OMs) of varying chemical characteristics that is, farmyard manure (FYM) and Tithonia diversifolia (tithonia), when applied alone or in combination with three inorganic P ... -
Comparative effects of lime and organic materials on selected soil chemical properties and nutrient uptake by maize in an acid soil
(Scholars Research Library, 2011)The use of phosphate fertilizers and lime to mitigate P deficiencies and Al toxicities in Kenya has not been effective due to their high cost. Organic materials (OMs) are therefore being tested as cheaper alternatives but ... -
Effect of organic and inorganic phosphorus sources on maize yields in an acid soil in western Kenya
(Springer Netherlands, 2010-04-01)Springer Netherlands -
Effects of combining organic materials with inorganic phosphorus sources on maize yield and financial benefits in western Kenya
(Cambridge University Press., 2009-10-09)Due to escalating costs of imported fertilizers, there is renewed interest in the use of local nutrient resources in managing soil fertility in Kenya. We tested the effect of two organic materials, farmyard manure (FYM) and ...
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