Topics: soil morphology, hydric soils, soil colour, soil horizon boundary, micro-morphology, field morphology, soil profile, iron reduction, sandy soils, soil colours, sand separates, clay separates, soil texture

Topics: Soil chemistry, soil fertility, minerals, diffusion, soil composition, soil acidity, alkalinity, root interception, plant nutrient leaching, pedologist, agronomist, soil engineer, ion exchange, cation exchange, nutrient mineralization, nutrient immobilization, ammonification, nitrification, denitrification, leaching, isomorphous substitution, plant nutrients, minor nutrient, major nutrient, fertilizer analysis, thermophilic composting, saline soil, vermicomposting, volatilization

Topics: Soil conservation engineering, water conservation engineering, site reclamation, Bouyoucos equation, erosion prediction, open channel design, Earth dam, trapezoidal channel, Pond, pond volume, pond capacity, pond diameter, pond depth

Topics: Soil plant water relations, irrigation, ultimate wilting point, soil water potential, soil field capacity, surface tension, soil apparent specific capacity, soil physical properties, soil water availability

Topics: Soil mechanics, soil behaviour, soil uniform coefficient, Soil water content movement, soil permeability, Mohr-Coulomb Failure criteria, Coulomb shear strength equation, soil consolidation, earth dam, earth dam construction seepage

Topics: Soil genesis, soil classification, pedogenesis, soil system, rock types, soil formation, land capability classification, melanic epipedon, spodic horizon, umbric epipedon, oxic horizon, mollic epipedon, lithologic discontinuity, xeric moisture regime, paralithic contact, mesic soil temperature regime, hyperthermic temperature regime

Topics: Soil conservation, soil geomorphology, accelerated erosion, geologic erosion, universal soil loss equation erodibility, predicting soil erosion, stratigraphy, soil stratigraphy

Topics: Soil mechanics, drained test, unconsolidated undrained test, soil cohesion, internal friction angle, Newmark chart, Fadum's chart, compaction, soil stabilization, soil identification, soil investigation, resistivity, seismic refraction method

Topics: Soil survey, land use planning, detailed soil survey, reconnaissance soil survey, soil formation, Crocker's equation, climosequence, land evaluation, land characteristics, land qualities, land improvement, optimum cassava production

Topics: Nigerian society of engineers, Council for the regulation of engineering in Nigeria, NSE, COREN, role of engineers, engineering employment, agricultural and bioresources engineering, agricultural production, civil engineering, Metallurgical & materials engineering, iron, electrical engineering, generator, motor, war of currents, electronic engineering, mechanical engineering