PHD-School of Agriculture And Enterprise Development
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This collections contains bibliographic information and abstracts of PHD theses and dissertation in the School of Agriculture and Enterprise Development held in Kenyatta University Library
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On- farm integrated management of fruit flies (tephritidae) infesting pumpkins (cucurbita maxima duch.) in Yatta and Masinga Sub- Counties of Machakos County, Kenya
(Kenyatta University, 2023)Pumpkin is an economically important crop in Machakos County. The crop is highly nutritious, mainly grown by smallholder farmers for household use. Their production is however constrained by fruit fly infestations particularly ... -
Profitability and technical efficiency analysis of pigeon pea production in Machakos County, Kenya
(Kenyatta University, 2023)Pigeon pea is a drought-tolerant crop mainly grown by small-scale growers in arid and semi-arid regions mostly for income generation and enhancing food security. Pigeon pea is a very essential crop, particularly in ... -
Efficiency and competitiveness of chicken production in Machakos, Kiambu and Uasin Gishu Counties, Kenya
(Kenyatta University, 2023)A company's or industry's competitiveness is its capacity to successfully compete in order to achieve sustainable growth and earn at least the opportunity cost of the resources used. The poultry sector is very important ... -
Phenotypic characterization and evaluating the response of sweetpotato genotypes for drought tolerance as an adaptation to climate change in Ethiopia Selamawit Abebe Gitore
(Kenyatta University, 2023)Sweet potato plays a major role as a food security crop in many countries particularly in the sub-Saharan Africa and Asia. Despite its importance, current identification is still limited, which is one of the reasons for ... -
Improving soil properties and growth of casuarina equisetifolia through use of biochar, manure and inorganic fertilizer in kilifi county, kenya
(Kenyatta University, 2023)Soil fertility challenges coupled with frequent droughts in arid and semi-arid lands (ASALs) have led to massive crop failures thereby increasing the problem of food insecurity. As climate change unfolds, there is a need ... -
Phenotypic Characterization and Evaluating the Response of Sweet potato Genotypes for Drought Tolerance as an Adaptation to Climate Change in Ethiopia
(Kenyatta University, 2023)Foremost, I attribute my success to Almighty God, who has granted me the opportunity and equipped me with the necessary knowledge, abilities, and patience. I am also grateful for the support and advice provided by various ... -
Assessing nitrogen flows and greenhouse gas emissions in low input cropping systems of lake Victoria basin
(Kenyatta university, 2022-12)Too little nitrogen (N) is a threat to cropping systems and soil fertility in sub-Saharan Africa (SSA). Nitrogen budgets (NB) and nitrogen use efficiency (NUE) are critical tools for assessing N dynamics in agriculture ... -
Assessing Nitrogen Flows and Greenhouse Gas Emissions in Low Input Cropping Systems of Lake Victoria Basin
(Kenyatta University, 2022)Too little nitrogen (N) is a threat to cropping systems and soil fertility in sub-Saharan Africa (SSA). Nitrogen budgets (NB) and nitrogen use efficiency (NUE) are critical tools for assessing N dynamics in agriculture and ... -
Analysis of Factors, Cost-Benefit Analysis and Effects of Value Addition Strategies on Cashew Products Processed in South-East Zone, Nigeria
(2022)Nigeria government has over the years come up with different agricultural policy interventions which emphasize value addition to export crops including cashew as a means of job and wealth creations. Despite these interventions, ... -
Economic Analysis of Environmental Conditional Credit as Incentive for Soil and Water Managemnt in Sasumua Sub-Watershed, Nyandarua County, Kenya
(Kenyatta University, 2022)This study used action research to assess demand for environmental conditional credit as an incentive for soil and water conservation. Credit amounts were incremental with decreasing interest rates with conditions of soil ... -
Impact of Human Capital Development and Fixed Capital Formation on Agriculture Productivity in Uganda
(Kenyatta University, 2022)This study was inspired by the fact that Uganda‟s economic development prospect is intertwined with agriculture sector growth. The country has 80% of arable land, but only 35% is under production majorly using subsistence ... -
Integration of Thymol, Soil Improvers and Biostimulants for Management of Tomato Pests, Diseases, Nematodes and Rhizosphere Microbial Dynamics Kirinyaga County, Kenya
(Kenyatta University, 2022)Soil-borne pathogens, root knot nematodes and insect pests remain a major constraint to tomato Solanum lycopersicum L. (Solanales; Solanaceae) production in Kenya. The study was carried out with an aim of evaluating the ... -
Impact of Improved Sorghum Varieties on Poverty Reduction among Rural Farming Households in Tharaka Nithi County, Kenya
(Kenyatta University, 2021)Poverty alleviation and attainment of food security are among the major concerns facing majority of households in arid and semi-arid land areas of Kenya. The Government of Kenya in partnership with other sector stakeholders ... -
Pyramiding of Genes Conferring Resistance to Coffee Berry Disease Using Marker Assisted Selection
(Kenyatta University, 2021)The epidemics of Coffee Berry Disease (CBD), caused by Colletotrichum kahawae, destroy up to 80% of the crop on susceptible varieties if not controlled. CBD control using fungicides increases production cost and environmental ... -
Identification of Stem End Rot Fungal Pathogens on Avocado Fruits and Efficiency of Fungicides and Trichoderma spp. in Murang’a County, kenya
(Kenyatta University, 2021)Avocado (Persea americana Mill.) is a commercially important fruit cultivated in tropical and sub-tropical climates. In Kenya the fruit is cultivated for both local and export market, significantly contributing to the ...
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On- farm integrated management of fruit flies (tephritidae) infesting pumpkins (cucurbita maxima duch.) in Yatta and Masinga Sub- Counties of Machakos County, Kenya
(Kenyatta University, 2023)Pumpkin is an economically important crop in Machakos County. The crop is highly nutritious, mainly grown by smallholder farmers for household use. Their production is however constrained by fruit fly infestations particularly ... -
Profitability and technical efficiency analysis of pigeon pea production in Machakos County, Kenya
(Kenyatta University, 2023)Pigeon pea is a drought-tolerant crop mainly grown by small-scale growers in arid and semi-arid regions mostly for income generation and enhancing food security. Pigeon pea is a very essential crop, particularly in ... -
Efficiency and competitiveness of chicken production in Machakos, Kiambu and Uasin Gishu Counties, Kenya
(Kenyatta University, 2023)A company's or industry's competitiveness is its capacity to successfully compete in order to achieve sustainable growth and earn at least the opportunity cost of the resources used. The poultry sector is very important ... -
Phenotypic characterization and evaluating the response of sweetpotato genotypes for drought tolerance as an adaptation to climate change in Ethiopia Selamawit Abebe Gitore
(Kenyatta University, 2023)Sweet potato plays a major role as a food security crop in many countries particularly in the sub-Saharan Africa and Asia. Despite its importance, current identification is still limited, which is one of the reasons for ... -
Improving soil properties and growth of casuarina equisetifolia through use of biochar, manure and inorganic fertilizer in kilifi county, kenya
(Kenyatta University, 2023)Soil fertility challenges coupled with frequent droughts in arid and semi-arid lands (ASALs) have led to massive crop failures thereby increasing the problem of food insecurity. As climate change unfolds, there is a need ... -
Phenotypic Characterization and Evaluating the Response of Sweet potato Genotypes for Drought Tolerance as an Adaptation to Climate Change in Ethiopia
(Kenyatta University, 2023)Foremost, I attribute my success to Almighty God, who has granted me the opportunity and equipped me with the necessary knowledge, abilities, and patience. I am also grateful for the support and advice provided by various ... -
Assessing nitrogen flows and greenhouse gas emissions in low input cropping systems of lake Victoria basin
(Kenyatta university, 2022-12)Too little nitrogen (N) is a threat to cropping systems and soil fertility in sub-Saharan Africa (SSA). Nitrogen budgets (NB) and nitrogen use efficiency (NUE) are critical tools for assessing N dynamics in agriculture ... -
Assessing Nitrogen Flows and Greenhouse Gas Emissions in Low Input Cropping Systems of Lake Victoria Basin
(Kenyatta University, 2022)Too little nitrogen (N) is a threat to cropping systems and soil fertility in sub-Saharan Africa (SSA). Nitrogen budgets (NB) and nitrogen use efficiency (NUE) are critical tools for assessing N dynamics in agriculture and ... -
Analysis of Factors, Cost-Benefit Analysis and Effects of Value Addition Strategies on Cashew Products Processed in South-East Zone, Nigeria
(2022)Nigeria government has over the years come up with different agricultural policy interventions which emphasize value addition to export crops including cashew as a means of job and wealth creations. Despite these interventions, ... -
Impact of Human Capital Development and Fixed Capital Formation on Agriculture Productivity in Uganda
(Kenyatta University, 2022)This study was inspired by the fact that Uganda‟s economic development prospect is intertwined with agriculture sector growth. The country has 80% of arable land, but only 35% is under production majorly using subsistence ... -
Economic Analysis of Environmental Conditional Credit as Incentive for Soil and Water Managemnt in Sasumua Sub-Watershed, Nyandarua County, Kenya
(Kenyatta University, 2022)This study used action research to assess demand for environmental conditional credit as an incentive for soil and water conservation. Credit amounts were incremental with decreasing interest rates with conditions of soil ... -
Integration of Thymol, Soil Improvers and Biostimulants for Management of Tomato Pests, Diseases, Nematodes and Rhizosphere Microbial Dynamics Kirinyaga County, Kenya
(Kenyatta University, 2022)Soil-borne pathogens, root knot nematodes and insect pests remain a major constraint to tomato Solanum lycopersicum L. (Solanales; Solanaceae) production in Kenya. The study was carried out with an aim of evaluating the ... -
Impact of Improved Sorghum Varieties on Poverty Reduction among Rural Farming Households in Tharaka Nithi County, Kenya
(Kenyatta University, 2021)Poverty alleviation and attainment of food security are among the major concerns facing majority of households in arid and semi-arid land areas of Kenya. The Government of Kenya in partnership with other sector stakeholders ... -
Pyramiding of Genes Conferring Resistance to Coffee Berry Disease Using Marker Assisted Selection
(Kenyatta University, 2021)The epidemics of Coffee Berry Disease (CBD), caused by Colletotrichum kahawae, destroy up to 80% of the crop on susceptible varieties if not controlled. CBD control using fungicides increases production cost and environmental ... -
Identification of Stem End Rot Fungal Pathogens on Avocado Fruits and Efficiency of Fungicides and Trichoderma spp. in Murang’a County, kenya
(Kenyatta University, 2021)Avocado (Persea americana Mill.) is a commercially important fruit cultivated in tropical and sub-tropical climates. In Kenya the fruit is cultivated for both local and export market, significantly contributing to the ... -
Effects of Supply Chain Management Practices on Competitive Advantage and Organizational Performance of the Dairy Processing Firms in Kenya
(Kenyatta University, 2021)Under capacity, utilization has profound effects on the efficiency, flexibility and responsiveness of the dairy processing firms in Kenya. Further, under capacity utilization has negatively impacted the competitiveness ... -
Production of Organic Fertilizer from Black Soldier Fly Frass for Improved Soil Health and Maize Productivity in Nairobi City County, Kenya
(Kenyatta University, 2021)Use of organic wastes for Black soldier fly (BSF) farming presents an avenue that could contribute to improved crop yield and sustainable soil health. A major waste from BSF farming is frass which, however, generates organic ... -
Quantifying Greenhouse Gas Emissions and Carbon Stocks in Maize-Soybean Cropping Systems in Siaya County, Kenya
(Kenyatta University, 2020-11)As climate change continues to threaten ecosystems’ functions, agriculture remains one of the major source of greenhouse gas (GHG) emissions that are responsible for global warming. The major GHG in agriculture are; carbon ... -
Performance of Amaranth Accessions against Moisture Stress and Key Insect Pests and Their Indigenous Parasitoids in Arusha, Tanzania
(Kenyatta University, 2019)Amaranths are African indigenous vegetables (AIVs) that have recently gained importance as a food source in Africa owing to the high nutritional value of their leaves and grains. Production of this crop is, however, limited ... -
Fingerprinting and Relating Juvenile Characters of Rice to Yield and Yield Components in Kiambu and Kirinyaga Counties
(Kenyatta University, 2019-02)Rice is increasing as an important food and cash crop in Kenya and is third to maize and wheat in terms of consumption. Consumption has continually outstripped production resulting in massive importation. The main problem ...
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