Browsing Chemistry by Title
Now showing items 8-27 of 36
-
Effect of NPK blended fertilizer application on soil chemical properties, growth, Chlorophyll content and nutrient uptake on Finger millet (Eleusine coracana l. gaertn.) grown in acidic soils.
(Maseno University, 2017)Finger millet (Eleusine coracana L) is one of the most important cereal crops in Kenya. It is an important staple food rich in minerals and vitamins required for good health. Finger millet has the ability to grow in stressful ... -
Effects and the relationship between nitrogenous fertilizer application rates and plucking intervals on some soil quality indicators and yield of tea (Camellia Sinensis (l.) in eastern Africa tea growing regions
(Maseno University, 2018)Eastern Africa tea is grown in high rainfall areas causing high nutrients depletion through leaching and surface run-off. Nutrients are also removed with harvested crop. The depletion requires nutrients replenishment through ... -
Effects of Anthropogenic Activities on Selected Water Quality Parameters in Spring Water and Sediments along Amala and Nyangores Tributaries in the Mara River Basin, Kenya
(Maseno University, 2014)Replacing natural forests with commercial crops and/or other small scale farming activities including human settlement have several environmental impacts. The land LISt' practices have the potential of contaminating aquatic ... -
The effects of nitrogenous fertilizers on selected physiochemical parameters and heavy metal loads within Nzioa nucleus sugarcane estate farms in western Kenya
(Maseno university, 2010)Continued use of nitrogenous fertilizers and biosolids in farming is known to affect the soil pH of the farms leading to acidic environment that promotes solubility;bioavailability and mobility of heavy metals. In addition, ... -
Effects of rates and split applications of nitrogen fertilizer on soil and leaf nutrients levels, quality and harvesting age of Ratoon crop of two Sugarcane varieties in Western Kenya
(Maseno University, 2015)Sugarcane is the third most important commodity crop in Kenya after tea and coffee. The productivity of the crop has been declining despite existence of recommended agronomic and cultural practices and opening new sugarcane ... -
Effects of Some Land Use Practices On Water Physico-Chemical Parameters, Nutrient Loads and Heavy Metal Concentrations In Water and Sediments Along the Malta River
(Maseno University, 2014)ABSTRACT Riverine land uses are among factors that influence water quality. Fresh water quality is nerlining and coDseqnemtiy imparting on the ecological heab:h of the ecosystem. Within the Mara River Basin as a result ... -
The effects of zeolite x and y on degradation kinetics of P, P'-DICHLORODIPI-IENYLYTRICIILOROETHANE (DOT) in natural water
(Maseno university, 2010)The study was on degradation kinetics of pesticides in water by zeolites. Pesticides are never target specific and as such, aerial dissipation of pesticides is potentially \ hazardous to man and environmental biodiversity. ... -
Evaluation of anticonvulsant activity of extracts and isolates from Maytenus Heterophylla
(Maseno University, 2017)Convulsion is a chronic neurological disorder that develops in up to 5% of the world’s population with prevalence of nearly 88% occurring in Sub-Saharan Africa, prompting serious medical, social, health related stigma ... -
Evaluation of chlorpyrifos ethyl elisa kit and assessment of use and spatial distribution and temporal trend of selected organophosphate and carbamate pesticides residues in water, sediment and fish from lake Naivasha
(Maseno University, 2015)Heavy seasonal use of specific organophosphate and carbamate in the catchment area of Lake Naivasha is a potential cause of pollution of sediment, water and fish in the lake. However, there is lack of data on the potential ... -
Fate studies of chlorsulfuron in selected soils within the Mara river basin of Kenya
(Maseno University, 2016)ABSTRACT Chlorsulfuron is a sulfonylurea herbicide used to control broadleaf and grass weeds in wheat farms within the Mara River Basin. It is assumed to be environmentally safe due to low application rates, relatively ... -
Heavy metal concentrations in sediments, Soil, waters and mosses around Pan African paper mills, Webuye
(Maseno university, 2010)Atomic absorption spectroscopic analysis of soils, sediments, water and mosses in the vicinity of Pan African Paper Mills, Webuye, Kenya has revealed the prevalence of the heavy metals Cu, Zn, Cr, Cd, Fe and Pb in the ... -
Hydrothermal crystallization of zeolite catalysts using kaolin and volcanic ash materials for biodiesel synthesis from Jatropha curcas and waste cooking oils
(Maseno university, 2022)Although biodiesel is a promising alternative source of energy, the cost of its production remains high because of the use of expensive feedstocks and catalysts. Zeolites derived from clay and volcanic ash as alternative ... -
Indoor levels of polycyclic aromatic Hydrocarbons from wood burning in Rural houses in western Kenya
(Maseno university, 2011)Western Province of Kenya has prevalence of grass-roofed traditional houses, where cooking is done in open fire places using various biomass types, which leads to accumulation of soot under the roofs. Polycyclic Aromatic ... -
Influence of area of production, nitrogenous Fertilizer rates and plucking intervals on the \ production of fatty acids in clonal tea '(Camellia sinensis (L.O) Kuntze) leaves
(Maseno university, 2011)Tea, Camellia sinensis, is widely grown in the highlands of Kenya for manufacture of mainly black tea. The most costly inputs in tea cultivation are nitrogenous fertiliser and plucking which are key determinants of yield ... -
Kinetic Studies of Malathion Dissipation Degradation in Lake Victoria Water in the Presence of Zeolite
(Maseno University, 2011)Malathion is an organophosphorus pesticide widely employed in controlling pests in agriculture, household, stored grains, greenhouse, forestry and public health. Malathion usually adsorbs on soilsand through surface ... -
Monitoring of carbofuran residues in Laikipia and Isiolo districts in Kenya for ecological risk Assessment
(Maseno university, 2010)Granular carbofuran which was widely used to control agricultural pests in Isiolo and Laikipia districts was also misused by local farmers and pastoralists to kill predators leading to massive deaths of Gyps vultures ... -
Optimization of Graphene oxide with methyl-β-Cyclodextrin and carbon Nanotubes with Polypyrrole for removal of lead (ii) and copper (ii) ions from water
(Maseno University, 2018)ABSTRACT Heavy metals pose risks to the humans and the environment. Lead (II) and copper (II) are of particular concern because they can cause irreversible damage to vital body organs. Their sources include leaded paints, ... -
Phytochemical evaluation of Elaeodendron buchananii stem Bark for microbial activities
(Maseno university, 2010)Public health is under serious threat due to wide array of emerging and re-emerging infections as a result of resistance of microorganisms to first line drugs. Despite the wide availability of clinically useful antifungal ... -
Phytochemical evaluation of Ocimum kilimandscharicum GUERKE, Gnidia subcordata MEISN AND Annona mucosa jacq leaves for secondary metabolites and their insecticidal activities against Sitophilus zeamais and Prostephanus truncatus.
(Maseno University, 2023)Global food security of which maize is a major component is threatened by food loss due to storage insect pests. Sitophilus zeamais and Prostephanus truncatus cause stored maize losses of 20% world wide and 45% in Africa. ...