Chemistry: Recent submissions
Now showing items 21-36 of 36
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Dissipation Rate of Chlorpirifos Within Mosquito Larvae Habitats In Maseno and its Activity Against the Larvae Relative to Dichlorodiphenyltrichloroethane
(Maseno University, 2016)ABSTRACT Despite more than a century of efforts to eradicate and control malaria, it still remains a major risk to public health and economies of countries in the tropical and subtropical regions of the world. Control of ... -
Survey of greenhouse gas fluxes from different vegetation, seasons and landscape units in small scale farming systems in lower Nyando-Kenya
(Maseno University, 2018)Greenhouse gases (GHGs) emissions data from large-scale agricultural activities are available. In developing countries, e.g. Kenya, agriculture is dominated by smallholder farming, data on the assessment of possible ... -
Determination of effective combinations of selected local materials for treatment of borehole water and to compare their effeciency with municipal water treatment technology
(Maseno University, 2016)Use of contaminated water risks human lives hence should be treated to meet drinking water quality guidelines. The most applied technique is municipal water treatment technology (MWTT) though inaccessible in peri-urban/rural ... -
Assessment of Levels of Selected Metal Pollutants in Aquatic Samples Along Lake Victoria Shoreline From Rivers Kisat to Kisian Discharge Points, Kenya
(Maseno University, 2015)Lake Victoria is the largest freshwater and fishery lake in Africa. Kisumu City on the Winam Gulf has industrial activities that dispose of their effluents into the lake which may contaminate aquatic species thus threatening ... -
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 ... -
Relationship between mites infestation levels in Kenyan tea to overhead volatile organic compounds and their variations with seasons, regions and selected agronomic practices
(Maseno University, 2016)Tea (Camellia sinensis) is a major cash crop in Kenya that suffers economic losses due to Brevipalpus phoenicis and Oligonychus coffeae infestations during droughts. Pesticides use on tea is prohibited and pests control ... -
Phytochemical investigations of lonchocarpus eriocalyx (harms), alysicarpus ovalifolius (schumach) and erythrina abyssinica (dc) for antiplasmodial, larvicidal, mosquitocidal and antimicrobial activities
(Maseno University, 2016)Management of parasitic disease continues to be a burden and a major public health problem the world over today. Malaria is most lethal of the parasitic vector-borne diseases due to drug and vector resistance to the available ... -
Comparison of Variations in Soil-Foliar Nutrients Levels and Productivity of Three Ratoon-Sugarcane Cultivars Due to Nitrogen-Potash Rates and Harvesting Age in Western Kenya
(2016)Sugarcane productivity in Kenya has declined despite increased acreage and new cultivars possibly due to use of old-cultivar agronomic inputs. The N-K2O optimal rates for new cultivars are unknown. Kenya Sugar Industry ... -
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 ... -
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 ... -
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 ... -
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, ... -
Sorption of sulfonamides by γ-fe2o3 modified natural clay: Isotherms, Kinetics and Thermodynamics studies
(Maseno University, 2018)ABSTRACT In recent years, research has indicated the ...