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Now showing items 311-320 of 590
Development of cost-effective media for the culture of Chilo partellus larvicide in Kenya
(Academic Journals, 2013-03)
Stem borers (Chilo partellus) are important field insect pests of maize (Zea mays L.) and sorghum (Sorghum bicolor L.) in Africa. They account for more than 30% yield losses depending on the composition of the pest community. ...
Diffusivity of Sulphate Ion in Selected Ordinary Portland and Portland Pozzolana Cements Mortar
(Kenya Chemical Society, 2014)
Cement is subject to degradation by aggressive media. This study investigated sulphate
diffusivity in mortar made from selected Kenyan cements which included three brands of
Ordinary Portland Cements (OPC) and three ...
Isolation and characterization of bacterial isolates from Lake Magadi
(2012)
Microorganisms from soda lakes have attracted attention as a possible source of novel enzymes and metabolites for use in industrial applications. Isolation and characterization of bacteria from Kenyan soda lakes has been ...
Rainfall Variability, Drought Characterization, and Efficacy of Rainfall Data Reconstruction: Case of Eastern Kenya
(Hindawi Publishing Corporation, 2014-08)
This study examined the extent of seasonal rainfall variability, drought occurrence, and the efficacy of interpolation techniques in eastern Kenya. Analyses of rainfall variability utilized rainfall anomaly index, coefficients ...
Local management and landscape drivers of pollination and biological control services in a Kenyan agro-ecosystem
(Elsevier, 2011)
Arthropods that have a direct impact on crop production (i.e. pests, natural enemies and pollinators) can be influenced by both local farm management and the context within which the fields occur in the wider landscape. ...
Effect of Government Regulations on the Relationship Between Return on Investments and Financing of Water Investments In Nairobi Peri-Urban Markets in Kenya
(2014)
For any economic development it is important to finance infrastructure such as water and sanitation. Water has historically been viewed as public good not as a market commodity and thus water utilities have ...
The Potential of Organic and Inorganic Nutrient Sources in Sub-Saharan African Crop Farming Systems
(2012-02)
he Potential of Organic and Inorganic Nutrient Sources in Sub-Saharan African Crop Farming System
Morphological characterization of soil bacteria in Ngere tea catchment area of Murang'a County, Kenya
(2015-02)
Bacteria are a very diverse group of organisms in soil, and major taxonomic groups are represented in most soils. The extent of the diversity of microorganisms in soil is seen to be critical to the maintenance of soil ...
Characterization, Enzymatic Activity, and Secondary Metabolites of Fungal Isolates from Lake Sonachi in Kenya
(2015-03)
The soda lakes of Kenya provide an extreme environment where diverse groups of microorganisms thrive. They are characterized by great variation in temperature, halophillic and alkaliphilic- extreme conditions. Lake Sonachi ...
Mass developments of the cyanobacteria Anabaenopsis and Cyanospira (Nostocales) in the soda lakes of Kenya: ecological and systematic implications
(2013)
The food web of the saline–alkaline lakes
of East Africa is characterised by a unique interaction
between the Lesser Flamingos as consumer birds
and the cyanobacterium Arthrospira fusiformis as the
primary producer. ...