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: Soil Chemistry, water chemistry, pollution science, soil composition, nitrogen, phosphorus, boron, iron, Manganese, Molybdenum, Ion Exchange Phenomenon, Cation Exchange Capacity, Anion Exchange Capacity, Flocculation, Buffering Capacity, Soil Salinity, Alkalinity, Sodicity, Soil Reaction, Soil Organisms, Fungi, Actinomycetes, bacteria, Algae, Nematodes, Earthworms, Termites, soil organic matter

Topics: Water, Food Technology, Water Molecules, Isotopic Composition of Water, Hydrogen Bonds, Hydrophobic effect, hydrophilic effect, Hydration of ions, Acidity of Water, Alkalinity of Water, Water Activity, Water Potential, Super Critical Water

Topics: Soil Microbiology, Soil Environment, soil component, Microbial flora, fauna, Microflora, Soil Bacteria, soil fungi, soil algae, nitrogen cycle, nitrogen fixation, Nitrification, Denitrification, Mineral Formation, Mineral Biodeterioration

Topics: Soil Classification, soil research, Brazilian Soil Classification System, New Zealand Soil Classification, soil taxonomy, soil survey

Topics: Soil-site classification, soil sampling, soil master horizon designations, diagnostic subsurface horizons, Identifying horizon boundaries, soil colour, mottling, soil texture, soil structure, Consistence, roots

Topics: Membrane potential, Action potential, Ionic basis

Topics: Soil Erosion, soil Conservation, farm, farming systems, husbandry, land use, Soil productivity relation, soil modelling, Agronomic Soil Conservation Measures

Topics: grain size, particles, water, air, stress in soil, stress in a layer, Darcy's law, permeability, groundwater flow, flotation, flow net, well, stress strain relations, tangent modulus, one-dimensional compression, analytical solution, numerical solution, consolidation coefficient, creep, sheer strength, triaxial test, shear test, pore pressure, stress path, elastic stresses, deformation, boussinesq, newmark, flamant, layered soil, lateral soil, rankine, coulomb, earth pressure, sheet pile wall, limit analysis, strip footing, prandtl, bearing capacity, infinite slope, slope stability, soil exploration, model test, pile foundations

Topics: Irrigation, Drainage, Soil-water-plant-atmosphere relationship, Irrigation requirement, Consumptive water use, evapotranspiration, Irrigation scheduling, Irrigation resources, irrigation equipment maintenance, Irrigation systems, Irrigation techniques, soil reaction, soil erosion, soil drainage, Soil salinity, soil alkalinity, soil acidity