RP-Department of Agricultural Sciences and Technology
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Recent Submissions
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Biology of the Endemic Endangered Swallowtail Butterfly, Papilio desmondi teita (Lepidoptera: Papilionidae), on Wild Citrus Species in Taita Hills, Kenya
(Hindawi, 2023-11)Te Taita Hills swallowtail butterfy, Papilio desmondi teita, was reared in captivity on wild citrus (Rutaceae), Toddalia asiatica and Clausena anisata, in Ngangao Forest, Taita Hills, Kenya. Te butterfies were exposed to ... -
Effects of Different Soil Management Strategies on Fertility and Crop Productivity in Acidic Nitisols of Central Highlands of Kenya
(Elsevier, 2023-01)Managing soil fertility, especially nitrogen (N) and phosphorus (P), to sustain increased crop productivity is a complex challenge, especially in cultivated Nitisols. Experiments were conducted over eleven (11) cropping seasons ... -
Use of Satellite-based Leaf Area Index Data for Monitoring Green Gram Crop Growth in Ikombe-Katangi Area, Machakos County, Kenya
(AJAAR, 2023-10)Monitoring the conditions under which crops grow and estimating their yield is essential to the process of economic development in any nation. The traditional approaches to crop monitoring are labor- and resource-intensive, ... -
Assessment of the Mineral Elements in the Soil of a Bixa Field and their Distribution in various Plant Tissues on Application of Organic and Inorganic Fertilizer Amendments
(HAK, 2023-09)Bixa orellana L. is a shrub that is commercially known as ‘annato’. Its main product is organic dye, which is present in the seed coat, commercially called ‘annatto’. It is widely used in the cosmetic and the food industry ... -
Revitalizing the Biochemical Soil Properties of Degraded Coastal Soil Using Prosopis juliflora Biochar
(MDPI, 2023-10-22)Biochar is an effective soil amendment with capabilities of boosting carbon sequestration and enhancing soil fertility, thus enhancing plant growth and productivity. While numerous studies have documented the positive ... -
Effect of crop combination on yield performance, nutrient uptake, and land use advantage of cereal/legume intercropping systems
(Elsevier, 2023-06-22)Context Crop type and temporal synchronization are crucial for improving the productivity of intercropping systems, especially with reduced inputs (nitrogen, N, and phosphorus, P). However, the effects of crop type and ... -
Land degradation unmasked as the key constraint in sunflower (Helianthus annus) production: Role of GIS in revitalizing this vital sector
(Tandfonline, 2023-05-02)In Tanzania, land degradation has been ranked as the top environmental problem for more than 62 years after independence. Land degradation is a catalyst for poverty increment in rural people’s livelihoods by contributing ... -
Efficiency of RAPD and SSR markers in assessing genetic diversity in summer onion (Allium cepa L.) genotypes
(Notulae Botanicae Horti AgrobotaniciCluj-Napoca, 2023)The genetic diversity assessment of agricultural crops is crucial for breeding programs aimed at enhancing crop yield, resistance to diseases, and adaptation to changing environmental conditions. In the present investigation, ... -
Estimation of Combining Ability of Maize Inbred Lines for High Plant Density Tolerance in Medium Altitudes of Kenya
(IPRJB, 2023)Purpose: The primary objective of any breeding program was to increase yields, thus superior lines based on yields are used as parents. After parents’ selection, hybrids may not perform as expected because the performance ... -
Upholding Sunflower (Helianthus annuus) Yield and Profitability while Maintaining Soil Fertility Under Intercropping with Sunn Hemp and Mineral Fertilizer Application
(ASSOCIATION FOR AGRICULTURE ENVIRONMENT AND BIOTECHNOLOGY, 2023)Sunflower (Helianthus annuus L.) is one of Tanzania’s high-potential cash crops. Nonetheless, nutrient depletion, especially nitrogen (N), is limiting its productivity. The study was conducted in the semiarid -Dodoma region ... -
Synthetic Fertilizer Application Coupled with Bioslurry Optimizes Potato (Solanum tuberosum) Growth and Yield
(MDPI, 2023)Biogas bioslurry, which is normally a bio-digestion product from livestock refuse, can be utilized as an inorganic fertilizer, thus boosting not only soil fertility but also crop growth and yield. Its use can mitigate ... -
Optimizing Productivity of Buffel and Sudan Grasses Using Optimal Nitrogen Fertilizer Application under Arid Conditions
(MDPI, 2023)Most arid and semiarid areas are bare and greatly infested with intrusive wild species. Buffelgrass(CenchrusciliarisL.)andSudangrass(SorghumsudanensePiper.) arethesupremedroughttolerantgrassesthatarecommonlygrownindryregions. ... -
Increasing rainwater use efficiency, gross return, and grain protein of rain-fed maize under nitrate and urea nitrogen forms
(EAP Press, 2023)The soil's capability to adjust and mitigate the effects of water shortage due to climate change is limited in some regions such those that suffer from the low rainfall rates. This experimental field study aimed to assess ... -
GIS-AHP Technique Land Suitability Assessment for Capsicum (Capsicum annuum L.) Production
(ASSOCIATION FOR AGRICULTURE ENVIRONMENT AND BIOTECHNOLOGY, 2023-06)This study was carried out to determine areas best suited for capsicum production in the peri-urban counties of Nairobi, Kenya for growing capsicum (Capsicum annuum L.). The study used a multi-criteria evaluation approach ... -
Mega Projects and De-commonization: Infrastructure, Land Tenure and Local Institutions Change in a Communal Conservancy in Isiolo, Kenya
(Journal of Science, Innovation and Creativity, 2022)In this paper, we examine how mega projects transform land tenure and local institutions in the context of a community-based conservation (CBC) model in northern Kenya. The model was introduced in some parts of Africa ...
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Biology of the Endemic Endangered Swallowtail Butterfly, Papilio desmondi teita (Lepidoptera: Papilionidae), on Wild Citrus Species in Taita Hills, Kenya
(Hindawi, 2023-11)Te Taita Hills swallowtail butterfy, Papilio desmondi teita, was reared in captivity on wild citrus (Rutaceae), Toddalia asiatica and Clausena anisata, in Ngangao Forest, Taita Hills, Kenya. Te butterfies were exposed to ... -
Effects of Different Soil Management Strategies on Fertility and Crop Productivity in Acidic Nitisols of Central Highlands of Kenya
(Elsevier, 2023-01)Managing soil fertility, especially nitrogen (N) and phosphorus (P), to sustain increased crop productivity is a complex challenge, especially in cultivated Nitisols. Experiments were conducted over eleven (11) cropping seasons ... -
Use of Satellite-based Leaf Area Index Data for Monitoring Green Gram Crop Growth in Ikombe-Katangi Area, Machakos County, Kenya
(AJAAR, 2023-10)Monitoring the conditions under which crops grow and estimating their yield is essential to the process of economic development in any nation. The traditional approaches to crop monitoring are labor- and resource-intensive, ... -
Assessment of the Mineral Elements in the Soil of a Bixa Field and their Distribution in various Plant Tissues on Application of Organic and Inorganic Fertilizer Amendments
(HAK, 2023-09)Bixa orellana L. is a shrub that is commercially known as ‘annato’. Its main product is organic dye, which is present in the seed coat, commercially called ‘annatto’. It is widely used in the cosmetic and the food industry ... -
Revitalizing the Biochemical Soil Properties of Degraded Coastal Soil Using Prosopis juliflora Biochar
(MDPI, 2023-10-22)Biochar is an effective soil amendment with capabilities of boosting carbon sequestration and enhancing soil fertility, thus enhancing plant growth and productivity. While numerous studies have documented the positive ... -
Effect of crop combination on yield performance, nutrient uptake, and land use advantage of cereal/legume intercropping systems
(Elsevier, 2023-06-22)Context Crop type and temporal synchronization are crucial for improving the productivity of intercropping systems, especially with reduced inputs (nitrogen, N, and phosphorus, P). However, the effects of crop type and ... -
Land degradation unmasked as the key constraint in sunflower (Helianthus annus) production: Role of GIS in revitalizing this vital sector
(Tandfonline, 2023-05-02)In Tanzania, land degradation has been ranked as the top environmental problem for more than 62 years after independence. Land degradation is a catalyst for poverty increment in rural people’s livelihoods by contributing ... -
Efficiency of RAPD and SSR markers in assessing genetic diversity in summer onion (Allium cepa L.) genotypes
(Notulae Botanicae Horti AgrobotaniciCluj-Napoca, 2023)The genetic diversity assessment of agricultural crops is crucial for breeding programs aimed at enhancing crop yield, resistance to diseases, and adaptation to changing environmental conditions. In the present investigation, ... -
Estimation of Combining Ability of Maize Inbred Lines for High Plant Density Tolerance in Medium Altitudes of Kenya
(IPRJB, 2023)Purpose: The primary objective of any breeding program was to increase yields, thus superior lines based on yields are used as parents. After parents’ selection, hybrids may not perform as expected because the performance ... -
Upholding Sunflower (Helianthus annuus) Yield and Profitability while Maintaining Soil Fertility Under Intercropping with Sunn Hemp and Mineral Fertilizer Application
(ASSOCIATION FOR AGRICULTURE ENVIRONMENT AND BIOTECHNOLOGY, 2023)Sunflower (Helianthus annuus L.) is one of Tanzania’s high-potential cash crops. Nonetheless, nutrient depletion, especially nitrogen (N), is limiting its productivity. The study was conducted in the semiarid -Dodoma region ... -
Synthetic Fertilizer Application Coupled with Bioslurry Optimizes Potato (Solanum tuberosum) Growth and Yield
(MDPI, 2023)Biogas bioslurry, which is normally a bio-digestion product from livestock refuse, can be utilized as an inorganic fertilizer, thus boosting not only soil fertility but also crop growth and yield. Its use can mitigate ... -
Optimizing Productivity of Buffel and Sudan Grasses Using Optimal Nitrogen Fertilizer Application under Arid Conditions
(MDPI, 2023)Most arid and semiarid areas are bare and greatly infested with intrusive wild species. Buffelgrass(CenchrusciliarisL.)andSudangrass(SorghumsudanensePiper.) arethesupremedroughttolerantgrassesthatarecommonlygrownindryregions. ... -
Increasing rainwater use efficiency, gross return, and grain protein of rain-fed maize under nitrate and urea nitrogen forms
(EAP Press, 2023)The soil's capability to adjust and mitigate the effects of water shortage due to climate change is limited in some regions such those that suffer from the low rainfall rates. This experimental field study aimed to assess ... -
GIS-AHP Technique Land Suitability Assessment for Capsicum (Capsicum annuum L.) Production
(ASSOCIATION FOR AGRICULTURE ENVIRONMENT AND BIOTECHNOLOGY, 2023-06)This study was carried out to determine areas best suited for capsicum production in the peri-urban counties of Nairobi, Kenya for growing capsicum (Capsicum annuum L.). The study used a multi-criteria evaluation approach ... -
Mega Projects and De-commonization: Infrastructure, Land Tenure and Local Institutions Change in a Communal Conservancy in Isiolo, Kenya
(Journal of Science, Innovation and Creativity, 2022)In this paper, we examine how mega projects transform land tenure and local institutions in the context of a community-based conservation (CBC) model in northern Kenya. The model was introduced in some parts of Africa ... -
Conservation Tillage and Weed Management Influencing Weed Dynamics, Crop Performance, Soil Properties, and Profitability in a Rice–Wheat–Greengram System in the Eastern Indo-Gangetic Plain
(MDPI, 2023)A three-year field experiment was carried out to assess the efficacy of various tillage and residue management practices, as well as weed management approaches, in a rice–wheat– green gram rotation. The treatments included: ... -
Recycling Mwea Irrigation Water for Sustainable Agriculture
(academic journals, 2021)Declining quantity and quality of irrigation water coupled with increasing water demand are serious challenges facing paddy rice production in the world. Reuse of agricultural waste water is increasingly popular in paddy ... -
In Vitro Efficacy of Native Entomopathogenic Fungi against Western Flower Thrips Frankliniella Occidentalis (Pergande) Of Tomato in Kenya
(Pen Academic publishing, 2019)Tomato (Solanum lycopersicum) L. is an important crop in Kenya. Arthropod pests are major constraints to its production and farmers rely heavily on synthetic chemicals for control, which increases costs and leads to ... -
Mechanisms of Action of Pseudomonas Fluorescens against Fusarium Oxysporum F. Sp Phaseoli in Vitro
(Researchjournali’s Journal, 2021)French bean accounts for 61% of the total horticultural exports in Kenya. Fusarium oxysporum f. sp phaseoli has been a major threat causing up to 30% yield loss. The objective of the study was to screen locally ... -
Diversity of Nematodes on Banana (Musa Spp.) In Kenya Linked to Altitude and with a Focus on the Pathogenicity of Pratylenchus Goodeyi
(Brill, 2022)Bananas (Musa spp.) are considered the most important fruit crop in Kenya, grown mostly by smallholder farmers. However, in the past two decades production has declined and has largely been attributed to plant pathogens, ...
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