Head of Programme


  • Development of soil information system for Nigeria in collaboration with partners in the six major agro-ecological zones in Nigeria
  • Digital mapping and production of digital soil maps, suitability maps and nutrient maps of local government areas in Nigeria (about 20 LGAs has been accessed to date)
  • Development of web portal interface for dissemination of soil information in Nigeria.
  • Accelerated Composting Technique (ACT) to further reduce the period of composting to 4 weeks through controlled environment and bio-fortication of IAR&T organic fertilizer
  • Calibration studies for improved fertilizer formulation and recommendation.
  • Use of plant growth promoting rhizobacteria for improved crop performance
  • Production of pyrolysed compost for increased soil quality and availability/utilization of nutrients
  • On –station research of bio-fertilizer as crop growth promoter


  • Federal Ministry of Agriculture and Rural Development (FMAR)
  • Agricultural Research Council of Nigeria (ARCN)
  • National Research Institute (NARI’s)
  • State Agricultural Development Programme (ADP’s)
  • Bora Agro service ltd
  • International Institute of Tropical Agricultural (IITA)
  • Private agro-input dealers e.g Greenworld plc, ISONEM Chemicals,
  • Ogun –Osun River Basin Development Authority (OORBDA)
  • Biochar Initiative
  • Commodity Farmers Association,
  • Soil Science Society of Nigeria (SSSN),
  • Nigeria Institute of Soil Science (NISS),
  • National Organic Association of Nigeria (NOAN),
  • Organic Agriculture Project in Tertiary Institution in Nigeria (OAPTIN)


  • National Special Program for Food Security: Detailed soil survey on special programme on food security (SPFS) sites
  • Agricultural Research Council of Nigeria: Development of Integrated Soil Nutrient and Watershed Management strategies under Intensive Land Cultivation
  • African Soil Information Service (AfSIS) Project TSBF- CIAT: Digital soil mapping and soil health surveillance of 3 Nigeria Sentinel Sites
  • Federal Ministry of Agriculture and Rural Development: Soil Fertility Evaluation Management in 2 Local Government Areas in Oyo State
  • CORAF/ILWAC project funded by Danish government: Integrated Water Management
  • African Soil Health project: Nigeria Soil Health Consortium South project


  • Production of functional soil maps of Nigeria based on agro-ecological zones
  • Correlation of Nigeria soils
  • Monitoring land quality/degradation
  • Testing and validating improved inorganic and organic fertilizer /biochar formulation to address current challenge of low soil productivity
  • Multiplication of identified inoculants for accelerated composting
  • Promotion of bio-fertilizers for crop growth among farmers
  • Testing in-situ soil and water conservation techniques;
  • Suitability of biochar in soil and water conservation



The programme is focus on three major areas of Research and Service: Pedology/Soil Survey and Land Evaluation, Soil Fertility Studies and Soil and Water Conservation.

Emphasis are given more to:

  • Soil information system for Nigeria
  • Integrated soil fertility management and production system
  • Urban agriculture and dry season farming
  • Soil and water conservation strategies for sustainable agricultural production

The 2018 in-house report of Land & Water Resources Management Programme


Among the six mandate given to IAR&T is the mandate for soil and water management research in Nigeria. The land and water management programme is saddled with the responsibility of coordinating the soil research mandate. It conducts and coordinates cutting edge research for the development of improved soil management technologies in all agro ecologies within Nigeria using holistic approach to multidimensional issues and land resources. The programme has moved in line with global trends in digital mapping of land resources of every local government with Nigeria.


The major objectives of the programme include:

  • Conducts and coordinates research on efficient use and management of land and water resources for agricultural production in the agro ecological zones of Nigeria.
  • Classification, characterization and mapping of Nigerian soils for Agricultural production and land use planning.
  • Develop and provide low cost and efficient technologies for control and monitoring of soil erosion and land degradation.
  • Provide advisory services to farmers, agricultural institutions and industries through soil survey and mapping, land evaluation, soil testing, laboratory analyses of soil, plant, fertilizer, rock and water; and providing recommendations for appropriate management practices.
  • Develop efficient and effective techniques to solve irrigation, land clearing and tillage problems.
  • Develop efficient and effective climate smart techniques for mitigation and adaptation to climate change


  • Soil information for agricultural development through characterization, classification and mapping of soils in Nigeria for land evaluation, sustainable management and erosion control of some strategic locations in Nigeria made available.
  • Soil inventory along rice value chain in Ebonyi, Taraba and Niger done.
  • Soil Inventory for special programmes for food security in Niger Delta area, Edo, and Lagos states for land use planning for small holder farmers.
  • Detailed Pedological studies including clay mineralogy and micro-morphology done
  • The Programme has repository of soil data bank which is the basis for the IAR&T soil information system being developed.
  • Fertilizer rate recommendation and micronutrient requirements of crops were developed
  • Effectiveness of rock phosphate as a source of soil Phosphorus for crop production was evaluated
  • Passively Aerated Composting Techniques (PACT) that reduced composting time to six weeks was developed
  • Organic and fortified organic based fertilizers (cassava-based compost and vetiver based compost) were developed, validated and evaluated.
  • Soil fertility evaluation for small-holder farmers.
  • Rainfall erosivity and erodibility map of Nigeria were produced
  • Amelioration of degraded soils with legumes
  • Use of low cost irrigation technology: (water harvesting, check dams and tube wells)
  • Weather forecast for prediction of onset of rainfall for crop production in IAR&T outstations.
  • Training workshops were conducted for stakeholders on sustainable land use, erosion control, compost production, flood control, soil fertility management and irrigation methods.
  • Farmers’ guide and knowledge products were developed to further empower stakeholders.


The Institute has a Central Laboratory Unit with up-to-date facilities for soil, water, plant and fertilizer analyses for research and advisory programs.  The unit provides services for research scientist, farmers and other land users. It also provides on-the-job training for students and youth corp members on attachment in the institute.

The programme has a central soil and plant sample processing and preparation facility. The soil parameters analyzed include:

  • Soil chemistry: soil pH, electrical conductivity, exchangeable cations, total nitrogen, soil micronutrients, Bray phosphorus, Olsen phosphorus, mehlich 3 extraction, exchangeable aluminum, cation exchange capacity, soil organic carbon and heavy metals.
  • Soil physics: soil texture, water stable aggregates, bulk density, soil water content and desorption, soil penetration resistance and soil water infiltration.
  • Soil microbiology: soil respiration, soil microbial counts, microbial isolation and identification, microbial enzymes analyses, bioremediation analysis, and screening of soil for functional microbes.
  • Plant analyses include macro and micronutrients, proteins, fat.
  • Water assays include pH, electrical conductivity, hardness, microbial, nitrate, ammonium, phosphate, minerals and heavy metals.

Most importantly, all analyses carried out within the Laboratory are done using distilled and deionized water.

The laboratory also assists the IAR&T Supply Unit in monitoring the quality of fertilizers and chemicals purchased from local sources.

The laboratory equipment available within the institute includes and not limited to:

Soil Chemistry, Plant and Fertilizer laboratory

  • Atomic Absorption Spectrophotometer
  • Mid-IR Spectrometer
  • Flame Photometer
  • UV/Visible Spectrophotometer
  • VELP Automatic Kjeldahl Digester
  • Vapodest 450 Kjeldahl distillation and titration apparatus
  • Distillation Apparatus
  • Mechanical shaker
  • Digester
  • pH and EC meter
  • Furnace
  • Oven
  • Hop plate
  • Grinding Machine
  • Soil Doc (mobile laboratory)

Soil Microbiology laboratory

  • Laminar Flow
  • Shaker Incubator
  • Autoclaves
  • Digital Microscope
  • Cool Incubator
  • Refrigerator
  • pH meter

Soil Physics Laboratory

  • Quick drawn tensiometer
  • Mini Disk Infiltrometer (Decagon Devices, Inc.)
  • Digital penetrologger with the thetaprobe (Eijkelkamp, penetrologger, Netherlands)


  • Wet sieving apparatus; Eijkelkamp Agrisearch equipment (Royal Eijkelkamp Company)
  • Stainless Steel Soil Cores
  • Oven
  • Sedimentation Apparatus
  • Set of sieves


Dr Adeoyolanu O.D.
Senior Research Fellow & Head of Progamme
Prof. Gabriel Oluwatosin
Professor (Soil Survey & Land Use Planning)
Dr Olufunmilayo Ande
Principal Research Fellow (Pedology, Soil Survey and Land Evaluation)
Dr Ojo A.O.
Senior Research Fellow
Dr. A. O. Oke
Senior Research Fellow
Dr. K.S. Are
Senior Research Fellow
Mr A.A. Adetayo
Research Fellow I
Mr A.O. Adelana
Research Fellow I
Mrs A. Oyedele
Research Fellow I
Mrs O.A. Denton
Research Fellow I
Mr. A.C.O. Uthman
Research Fellow II
Mr. I. O. Fademi
Research Fellow II
Miss O. Alemeru
Junior Research Fellow
Taiwo Omodele
Junior Research Fellow (GIS)
Emmanuel Ezaka
Junior Research Fellow (Microbiology)
Emmanuel Anoke
Graduate Assistant (GIS)





Head of Programme

ARE Kayode Steven

ARE Kayode Steven

Team Leader, Monthly Technology Review Meetings for Ondo State Agricultural Development Programme