Topics: Nature of Organic compounds, Organic compounds, carbon compounds, organic chemistry, column chromatography, ion-exchange chromatography, gas-liquid chromatography, carbonyl compounds, carboxylic acids, halogeno compounds, halogenoalkanes, alcohols, phenols, ethers

Topics: Cell Molecular Biology, Cells, genomes, cell chemistry, bioenergetics, proteins, DNA chromosomes, DNA replication, DNA recombination, DNA repair, gene expression control, Membrane Structure, protein sorting, Intracellular Membrane Traffic, Energy Conversion, Mitochondria, Chloroplasts, Cell Signaling, cytoskeleton, cell cycle, cell death, cell junctions, cancer, stem cells, tissue renewal, pathogens, infection, innate immune systems, adaptive immune systems, genetic code, amino acids

Topics: Soil Mineralogy, soil fertility, soil chemistry, pedology, Soil composition; soil air, soil water, kaolinite, Illite, Smectite, Mixed layer Clays Silica minerals, Iron, aluminum oxides, hydroxide, oxyhydroxides, Differential thermal analysis, X-Ray diffraction analysis, Infrared spectroscopy

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: Water Quality Management, Pollution Control, water bodies physical composition, water chemistry, Nutrient Cycles, water biological characteristics, sampling methods, Water Quality Standards, water pollution control, Water Quality Monitoring, Nitrification, Denitrification, Anaerobic ammonium oxidation, Nitrogen mineralisation, Carbon Cycle, Phosphorus Cycle, Iron Cycle, Silica Cycle, Marine Dead Zones, bacteria, protozoa, Manual Sampling, grab sampling, Integrated sampling, Automatic Sampling, Mechanical Samplers, Physical Habitat Assessments, Turbidity, salinity, Total oxidised nitrogen, Total organic nitrogen, Total Kjeldahl nitrogen

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: Soil Science, silicate chemistry, soil form rocks, minerals, soil composition, soil porosity, soil texture, soil density, soil water relationships, Evapo-Transpiration, tillage, soil properties, Soil Micro-Organisms, Shifting Cultivation, Fallow System

Topics: JAMB, Biology, chemistry, physics