About
Professional Summary
Ayeni Leye Samuel is a lecturer and researcher (associate professor) at Adeyemi Federal University of Education, Ondo (formerly Adeyemi College of Education). Ayeni lectures in the field of soil science and crop production, such as soil chemistry, soil fertility management and conservation, soil pedology and principles of arable crop production and horticulture. His research focuses on integrated soil and plant nutrition management around the efficient use of low levels of mineral fertilizers with low levels of organic manures in order to reduce the problems associated with the sole use of mineral and organic fertilizers for soil health and optimum crop production. He also specializes in soil and data analyses, fertilizer formulations and recommendations.
His Ph.D. thesis centers on soil science, titled Effect of cocoa pod ash, poultry manure NPK fertilizer and their combinations on soil chemical properties, nutrient uptake and maize yield. University of Agriculture, Abeokuta. Ogun State, Nigeria. He has the ability to form and lead teams in research and field crop management. He was formerly the head of the college farm services of Adeyemi College of Education and a 4-term head of the Department of Agricultural Science.
Employment
Professional Appointments
Lecturer
Adeyemi Federal University of Education
Education
Academic Background-
B.Sc. Joseph Ayo Babalola University, Nigerian Crop Production | Completed: 2018
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B.Sc. Joseph Ayo Babalola University, Nigerian Crop Production | Completed: 2018
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Ph.D. University of Agriculture, Abeokuta, Ogun State, Nigeria Soil Science | Completed: 2009
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Ph.D. University of Agriculture, Abeokuta, Ogun State, Nigeria Soil Science | Completed: 2009
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M. Tech. Federal University of Technology, Akure, Nigeria Crop Production | Completed: 2002
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PGD Federal University of Technology, Akure, Nigeria Crop Production | Completed: 1998
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H.N.D Federal College of Agriculture, Akure, Nigeria Crop Production | Completed: 1996
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Ph.D. Adeyemi College of Education, Ondo, Nigeria Soil and Plant Nutrition | Mar 2011 — Present
Publications (58)
Selected Scholarly Contributions
Residual Effects of Poultry Manure on Yield, Quality Parameters Of Carrot And Selected Soil Chemical Properties On Alfisol In Southwest, Nigeria
Ayeni Leye Samuel
2025
COMPARATIVE EFFECT OF SELECTED BIO AND MINERAL FERTILIZERS ON THE GROWTH AND YIELD COMPONENTS OF TWO MAIZE CULTIVARS IN ALFISOLS OF SOUTHWESTERN NIGERIA
Ayeni Leye Samuel
2025
EFFECT OF COMPOSTED AND UNCOMPOSTED ORGANIC AMENDMENTS AND BIOCHAR ON SOIL CHEMICAL PROPERTIES AND LEAD UPTAKE IN TWO MAIZE VARIETIES PLANTED IN Pb CONTAMINATED SOIL
Ayeni Leye Samuel
2025
Comparative effect of selected fertilizers on soil chemical properties of the proposed site for cassava cultivation in Ondo southwestern Nigeria (incubation study)
Ayeni Leye Samuel
2024
USAGE OF MOBILE PHONE APPLICATIONS FOR THE MANAGEMENT OF CROP DISEASES AMONG ARABLE CROP FARMERS IN ONDO STATE, NIGERIA
Ayeni Leye Samuel
2024
EVALUATION OF SELECTED BURNT PLANT RESIDUES AND MINERAL FERTILIZERS ON SOIL PROPERTIES AND NUTRIENT UPTAKE AND GROWTH PARAMETERS OF OIL PALM SEEDLINGS
Ayeni Leye Samuel
2022
Rudiments of Soil Science,
Ayeni Leye Samuel
2020
Soil Reactions, Plant Nutrients and Crop Relationship
Ayeni Leye Samuel
2020
Analysis of Impact of Youth Empowerment in Agriculture Programme on Graduates in South-West Nigeria
Ayeni Leye Samuel
2020
Evaluation of Soil Chemical Properties and Heavy Metals Contamination of Soils within 2km Radius of Ewekoro Cement Factory, Abeokuta Southwestern Nigeria
Ayeni Leye Samuel
2020
A case study of income of cocoa farmers and educational achievement of their children in Akure South West local government, Ondo State Southwestern Nigeria.
Ayeni Leye Samuel
2020
Impact of cement production on soil heavy metals and nutrients uptake of elephant grass (Pennisetum purpureum) grown within 2km radius of cement factory in South West Nigeria.
Ayeni Leye Samuel
2020
2020
Effect of Fertilizer Types on Nutrient Uptake and Yield of Cassava in Ondo Southwestern Nigeria using Farmer’s Simulation Method
Ayeni Leye Samuel
2019
Effect of Ratooning on Growth and Nutritional Quality of Amaranthus (Amaranthus tricolor) in Alfisol South Western Nigeria
Ayeni Leye Samuel
2019
PROXIMATE COMPOSITION OF AFRICAN EGGPLANT (Solanum macrocarpon) OBTAINED FROM SOIL AMENDED WITH CATTLE DUNG AND POULTRY MANURE
Ayeni Leye Samuel
2018
EFFECT OF FERTIGATION ON SOIL CHEMICAL PROPERTIES, GROWTH AND NUTRIENTS CONTENT OF BASELLA ALBA
Ayeni Leye Samuel
2018
Comparative effect of biofertilizer types of growth and yield of seected maize cultivars in Alfispols
Ayeni Leye Samuel
2018
Effect of industrial manufactured organic and organomineral fertilizers on soil ph, major nutrients and their interactions at 90 days of incubation.
Ayeni Leye Samuel
2018
Growing amaranthus as a means of livelihood among peasant farmers in Africa.
Ayeni Leye Samuel
2018
COMPARATIVE EFFECT OF ORGANIC AND MINERAL FERTILIZER TYPES ON SOIL PROPERTIES, GROWTH AND YIELD OF YAM IN ONDO, SOUTH WESTERN NIGERIA
Ayeni Leye Samuel
2017
EEFECT OF FERTILIZER TYPES ON NODULATION, GROWTH AND YIELD OF COWPEA IN SOUTHWESTERN NIGERIA
Ayeni Leye Samuel
2017
INFLUENCE OF ORGANIC AND INORGANIC AMENDMENTS ON WEEDS DENSITY AND CHEMICAL COMPOSITION
Ayeni Leye Samuel
2015
Nitrogen Mineralization Rate of Industrially Manufactured Organic Fertilizers on Alfisol in Southwestern Nigeria
Ayeni Leye Samuel
2015
Laboratory Experiment on Soil Nutrients Mineralization and Interaction as Affected by Cocoa Pod Husk, Kola Pod Husk and Urea Fertilizer in Alfisol
Ayeni Leye Samuel
2015
Response of Sandy Clay Loam and Sandy Loam to Application of Fertilizer Types on Forms of Nitrogen, Phosphorus and Potassium
Ayeni Leye Samuel
2014
Effect of different Cropping Practices on Mn and Fe Sequestration in Lagos Nigeria
Ayeni Leye Samuel
2014
INTEGRATION OF WEED CONTROL METHODS WITH SEED RATES FOR IMPROVING WHEAT YIELD
Ayeni Leye Samuel
2014
Mineralization rates of soil forms of nitrogen, phosphorus, and potassium as affected by organomineral fertilizer in sandy loam.
Ayeni Leye Samuel
2014
Enhancing Dry Season Production of Indian Spinach (Basella alba) Through Fertigation
Ayeni Leye Samuel
2013
Enhancing Dry Season Production of Indian Spinach (Basella alba) through Fertigation
Ayeni Leye Samuel
2013
Effect of types of fertilizers on soil chemical properties and yield of tomato in Alfisol, southwestern Nigeria
Ayeni Leye Samuel
2013
Utilization of Kola Pod Husk for Telfaria Occidentalis, Corchorus Olitorius and Amaranthus Cruentus Production in Ikorodu, Lagos State
Ayeni Leye Samuel
2013
Comparative effect of organic, organomineral and mineral fertilizers on soil properties, nutrient uptake, growth and yield of maize (Zea Mays)
Ayeni Leye Samuel
2012
Effect of cattle dung and urea fertilizer on pH and cations on sils selected from agro-ecological zones of Nigeria
Ayeni Leye Samuel
2012
Combined effect of cattle dung and urea fertilizer on organic carbon, forms of nitrogen and available phosphorus in selected nigerian soils.
Ayeni Leye Samuel
2012
Effects of Organic, Organomineral and NPK Fertilizer Treatments on The Nutrient Uptake of Amaranthus Cruentus (L) on Two Soil Types in Lagos, Nigeria
Ayeni Leye Samuel
2011
Effect of Sole and Combined Cocoa Pod Ash, Poultry Manure and NPK 20:10:10 Fertilizer on Soil Organic Carbon, Available P and Forms of Nitrogen on Alfisols in Southwestern Nigeria
Ayeni Leye Samuel
2011
Comparative effect of mineral fertilizers and organic manures on growth, nutrient content and yield of Chorcorus olitorus and Celosia argentina.
Ayeni Leye Samuel
2011
Soil nutrient status and nutrient interactions as influenced by agro wastes and mineral fertilizer in an incubation study in the South West Nigeria.
Ayeni Leye Samuel
2011
EFFECT OF ORGANIC, ORGANOMINERAL AND NPK FERTILIZER ON NUTRITIONAL QUALITY OF AMARANTHUS IN LAGOS, NIGERIA
Ayeni Leye Samuel
2010
Morphological Characteristics of Amaranthus Cruentus L. as Influenced by Kola Pod Husk, Organomineral and NPK Fertilizers in Southwestern Nigeria
Ayeni Leye Samuel
2010
Effects of Soil Preparation Methods and Spacing on the Growth and Yield of Popcorn on an Alfisol in Southwestern Nigeria
Ayeni Leye Samuel
2010
Effect of organic, organomineral and NPK fertilizer on nutritional quality of Amaranthus in Lagos, Nigeria.
Ayeni Leye Samuel
2010
Morphological characteristics of Amaranthus cruentus L. as influenced by kola pod husk, organomineral and NPK fertilizers in Southwestern Nigeria.
Ayeni Leye Samuel
2010
Integrated application of poultry manure and mineral fertilizer on soil chemical properties, nutrient uptake, yield and growth components of maize.
Ayeni Leye Samuel
2010
Effect of combined cocoa pod ash and NPK fertilizer on soil properties, nutrient uptake and yield of maize (Zea mays).
Ayeni Leye Samuel
2010
Effect of cocoa pod ash and poultry manure combinations on soil and plant nutrient contents and performance of maize-screenhouse experiment.
Ayeni Leye Samuel
2010
COMPARATIVE EFFECTS OF INTEGRATED APPLICATION OF COCOA POD ASH, POULTRY MANURE AND NPK FERTILIZER ON SOIL NITROGEN, ORGANIC CARBON AND PHOSPHORUS CONTENTS – INCUBATION STUDY
Ayeni Leye Samuel
2009
RESIDUAL EFFECT OF COCOA POD ASH, POULTRY MANURE AND NPK 20:10:10 FERTILIZER ON SOIL NUTRIENTS, NUTRIENT UPTAKE AND YIELD OF MAIZE (Zea mays)
Ayeni Leye Samuel
2009
Effects of Soil Preparation Methods and Organic Wastes on Soil Nutrient Status and Yield of Maize (Zea mays) on an Alfisol of Southwest Nigeria.
Ayeni Leye Samuel
2009
Integrated application of cocoa pod ash and NPK Fertilizer on soil chemical properties and yield of tomato.
Ayeni Leye Samuel
2009
Effect of sawdust and wood ash application in improving soil chemicaal properties and growth of cocoa (Theobroma cacao) seedlings in the nurseries
Ayeni Leye Samuel
2008
Comparative and cumulative effect of cocoa pod husk ash and poultry manure on soil and maize nutrient contents and yield.
Ayeni Leye Samuel
2008
Effect of sawdust and wood ash applications in improving soil chemical properties and growth of cocoa (Theobroma cacao) seedlings in the nurseries.
Ayeni Leye Samuel
2008
Effect of types of ash on soil fertility nutrient availability and yield of tomato and pepper.
Ayeni Leye Samuel
2003
Interaction Effect of Forms of Biofertilizers and NPK 15:15:15 Fertilizer on Growth and Yield of Two Selected Maize Cultivars in southwest Nigeria
Ayeni Leye Samuel
Integrated Pant Nutrition Management- a panacea forsustainable crop production in Nigeria
Ayeni Leye Samuel