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Now showing items 141-150 of 151
Does Farm Worker Health Vary Between Localised And Globalised Food Supply Systems?
(University of Nairobi, 2009-10)
Significant environmental benefits are claimed for local food systems, but these biophysical indicators are increasingly recognised as inadequate descriptors of supply chain ethics. Social factors such as health are also ...
Holocene palaeohydrology, groundwater and climate change in the lake basins of the Central Kenya Rift
(Taylor & Francis, 2009)
The Central Kenya Rift contains small soda lakes such as Nakuru, Elmenteita and Bogoria, freshwater Lake Naivasha, and the partly (spatially) freshwater Lake Baringo. The hydrology of this area is controlled mainly by ...
AGRONOMIC AND ECONOMIC EVALUATION OF PYMARC ON MAIZ E YIELD IN RIFT VALLEY PROVINCE OF KENYA
(2009)
On many smallholder farms in Kenya, organic materia
ls such as animal manures are commonly
used to replenish soil fertility. These soil amend
ments are however, in short supply and are unlikely
to
meet the nutrient ...
Protection of Metarhizium anisopliae conidia from ultra-violet radiation and their pathogenicity to Rhipicephalus evertsi evertsi ticks
(University of Nairobi., 2009)
Metarhizium anisopliae conidia were formulated in water or in olive oil containing 3% commercial sunscreens (Everysun® or E45 Sun Block 50®) and exposed to an artificial UV source for up to 5 hours. Survival of conidia ...
The effects of Mn2+, Ni2+, Cu2+, Co2+ and Zn2+ ions on pesticide adsorption and mobility in a tropical soil.
(2009)
The adsorption behaviour of DDT in a tropical silt-clay soil from Kenya showed that addition of increasing metal ion concentrations from 10 to 100 microg/g of soil, reduced the % DDT adsorption in the soil by factors ranging ...
The Impact of Urban Activities on Heavy Metal Distribution and Bioavailability Index in Selected Tropical Urban Soils
(2009)
The distribution and bioavailability of heavy metals in the environment is of particular concern because of their potential toxicity to the ecosystem. A study was conducted to investigate the impact of informal industries ...