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

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: 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: Fisheries Management, Fisheries Conservation, Fisheries Development, Fisheries Exploitation, Fisheries Administration, Fisheries Management legal framework, Fisheries Management Plan, Fisheries Management Strategy, Fisheries Management Measure, Fisheries Management Systems, Overfishing, Fisheries Enhancement

Topics: Probability, distributions, Estimation, hypothesis testing, random variation, randomized block design, Latin square designs, factorial treatment structure, Linear regression, Variance homogeneity, linear relationships, Linear models, non-Linear models, analysis of proportions, experimental measurements, experimental measurements analysis, Sampling finite populations, Experimental Biology, Agricultural Statistical Methods

Topics: set, set theory, inequality, integration, differentiation, matrix algebra, frequency distribution, probability theory, correlation analysis, regression analysis

Topics: Probiotics, Antibiotics, vaccines, Antibiotics production, biopesticides, Biofertilizers, nitrogen fixers, Phosphate solubilizers

Topics: Land Tenure, crop classes, Tropical Agricultural Systems, Crop Production, crop propagation, Animal Husbandry, farm animals classes, Farm Animals distribution, Livestock Management Systems, Livestock Management, Fisheries, Fish Production, Aquaculture, Sustainable Forest Management, Wildlife, Wildlife Management, Ecotourism

Topics: Understanding Technological Change, Technological Change, Agricultural Extension, Agricultural Engineers, Public Extension System, social change, innovation