Topics: soil properties, soil management, tropical environment, temperature, solar radiation, rainfall, tropical climates, vegetation, physiography, Anthropocene, biodiversity, climate change, demographics, Green Revolutions, Tropical Agroecosystems, land use, land-use change, Pedology, Physics, Chemistry, Biology, Laterite Paradigm, tropical soils, tropical soil research, Soil Taxonomy, soil classification systems, soil physical properties, soil temperature, soil structure, soil compaction, soil water, soil erosion, conservation, conservation agriculture, water, rainfed agriculture, irrigated agriculture, irrigation, mineralogy, clay minerals, mineralogy families, Anion Exchange Capacity, soil acidity capacity, Acid Soil Infertility, Liming, overliming, subsoil acidity, secondary acidity, soil biology, soil biodiversity, comminution, decomposition, nutrient elements transformation, soil structure regulation, organic carbon, carbon pools, carbon fractions, animal manures, composts, biochars, organic farming, soil fertility, nutrient cycling, nutrient uptake, determining fertilizer needs, nitrogen cycle, nitrogen pools, atmospheric deposition, biological nitrogen fixation, mineral fertilizers, organic nitrogen mineralization, soil nitrogen fertilizer reactions, Phosphorus Cycle, Phosphorus, Total Soil Phosphorus, inorganic Phosphorus, Phosphorus sorption, Phosphorus release, plant Phosphorus requirements, Phosphorus fertilization, sulfur cycle, sulfur sorption, Sulphur fertilization, Forest–Soil Nutrient Cycles, land clearing, Mechanized Land Clearing, Crop Yield Declines, Field Abandonment, Secondary Forest Fallows, puddling, flooding, rice cultivation systems, Nutrient Management, Yield Stagnation, Nitrogen Sequestration, Livestock-Based Tropical Systems, tropical pastures, Tropical Livestock Management Systems, pastoralism, Smallholder Mixed Crop–Livestock Systems, Extensive Pasture-Based Beef Production, Pasture Degradation, Crop–Pasture Integration, Tropical Tree-Based Systems, Plantation Forestry, Plantation Forestry Species, Agroforestry, Agroforestry Tree Species, Agroforestry Systems, Simultaneous Agroforestry, Sequential Agroforestry, tree crops

Topics: Forages, Grassland Agriculture, grass morphology, legume structure, legume morphology, carbon metabolism, Mineral Nutrient Acquisition, Metabolism, forage ecology, Climate, Climate-Change, Forage Adaptation, Plant Interactions, Plant-Herbivore Interactions, forage species, forbs, forage systems, forage production, forage management, Fertilization, Nutrient Management, Irrigation, Water Management, weed management, insect management, forage improvement, forage breeding, seed production, forage quality, Digestibility, plant chemistry, Predicting Forage Quality, Post-Harvest Physiology, forage harvesting, forage utilization, hay storage, silage production, biomass, pasture management, pasture design, grazing management, Grazing Animal Nutrition, Grazing Animal Behavior, Forage-Induced Animal Disorders, Grazing Systems, grazing strategies

Topics: Agriculture, Agricultural Development, Land Use System, Farming, Agricultural Systems, Agricultural Extension Service, Agricultural Extension, Agricultural Production, Food Crops, soil, Vegetable Crops, Root Crops

Topics: Mathematical model, time response analysis, time response, test signal, impulse response, order of a system, partial fraction expansion, Response of first order system, Response of second order system, time domain specification, steady state error, static error constant, error coefficient, automatic control system, controller, time response analysis, frequency response, sinusoidal transfer function, transfer function, frequency domain, frequency response plot, Bode plot, Magnitude plot, phase plot, Nichols plot, M-circle, N-circle, Nichols chart, Bounded input Bounded output stability, root locus, Routh Hurwitz criterion, Nquist plot, open loop system, closed loop system, mechanical translational system, Laplace transform, mechanical rotational system, electrical system, analogous circuit, block diagram, signal flow graph

Topics: Ideal Breathing System, Breathing System, Mapleson A System, Lack system, Mapleson D system, bain system, Mapleson F system, Jackson Rees Modification system, Mapleson F with APL Valve, Mapleson C Bagging System

Topics: power systems, Per-Unit System, Power System, power flow analysis, fault analysis, power system analysis, power system simulation, power system transients, lightning strokes, overvoltage, switching surges, very fast transients, Transmission System Transients, Grounding, Transient Recovery Voltage, Surge Arresters, Insulation Coordination, power system planning, Short-Term Load, Transmission Plan Evaluation, power system reliability, Electricity Pricing, Power Semiconductor Devices, uncontrolled rectifiers, controlled rectifiers, inverters, active filters, power electronics

Topics: Agriculture Cooperatives, Agricultural Co-Operatives, Agricultural Development, Service Co-Operatives, Agro Co-Operative Credits, Agricultural Produce, Agricultural Insurance, Nigerian Agricultural Co-Operative Promotion

Topics: Analytical Techniques In Agriculture, safety quality, precision, accuracy, Animal Feed Sample Analysis, Soil Samples Analysis, Plant Sampling, soil sampling, soil sample preparation, microscopy, Atomic Absorption Spectrophotometer, High-performance liquid chromatography, Thin Layer Chromatography, Gas Chromatography, Polymerase Chain Reaction, Gel Electrophoresis, Hematology, Serum Biochemistry, Sample Conservation, sample Preservation, Cryopreservation

Topics: Database management system, database model

Topics: system analysis, information system building blocks, information systems development, project management, fact-finding technique, modeling system requirements, process modeling, data modeling, data analysis, Object-oriented analysis, system design methods, systems design, feasibility analysis, input design, prototyping, database design, user interface design, output design, systems operations, systems construction, systems implementation