Topics: Soil microorganisms, carbon cycle, cellulose decomposition, hemicellulose decomposition, lignin decomposition, nitrogen cycle, ammonification, nitrogen fixation, Free-living nitrogen fixing-bacteria, symbiotic Nitrogen-fixing bacteria, proteolysis, nitrification, denitrification

Topics: Principles of Soil Science

Topics: Micro Economics, resoruces, scarcity, choice, opportunity cost, economic problems, consumer behavior, cardinal utility analysis, total utility, marginal utility, utility maximization, consumers demand curve, indifference curve analysis, consumer surplus, Law of demand, market demand, supply, supply curves, market supply, Equilibrium Price, equilibrium quantity, market equilibrium, elasticity, supply elasticity, demand elasticity, Cross elasticity, Law of diminishing return, production function, isocosts, producer equilibrium, production possibility curve, Isorevenue line, long run total cost, Long run marginal cost curves, amrket structure, firm, industry, monopoly, monopolistic competition, oligopoly, Total cost-total revenue analysis, Marginal cost-marginal revenue analysis, pricing, perfect competition

Topics: exactness, intergrability, use of multipliers, general integral, special integral, geometrical interpretation

Topics: Environmental Microbiology, water pollution, water pollution prevention, soil pollution, soil pollution effects, soil pollution prevention, Waste Management Resources, waste disposal methods, landfill, incineration, Plasma gasification, composting, waste minimization, Biological reprocessing, Waste Management methods, sewage, wastewater treatment, Water purification, Water-Borne diseases, chemical oxygen demand, biological oxygen demand

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: Fertilizer technology, fertilizer consumption, Nitrogen fertilizer composition, phosphorus fertilizer composition, potassium fertilizer composition, micronutrient fertilizer composition, Fertilizer calculations content, fertilizer application content, Phosphorus fertilizer production, Potassium fertilizer production, Fertilizer Specifications, Complete Fertilizers, Straight Fertilizer, Compound Fertilizer, Fertilizer Ratio

Topics: Microbial Ecology, microfossils, microorganism diversity, Archaeal Diversity, Fungal Diversity, protist diversity, Algal Diversity, Viral Diversity, cell physiology, metabolism, cell movement, chemotaxis, Bioelectrochemical Activities, energetics, Heterotrophs, Chemolithotrophs, Photophosphorylation, Bacteriorhodopsin Reaction, microbial habitat, Aquatic Habitats, Soil Habitats, microscopy, Molecular Phylogenetics, Metagenomics, Environmental Proteomics, Microbial Interactions, Symbiotic Associations, Mycorrhizae, Nitrogen-Fixing Bacteria, Parasitism, mutalism, microbial communities, biomats, biofilms, Species Diversity, food webs, Primary Production, Energy Flow, Nitrogen Cycling, Sulfur Cycling, Phosphorus Cycling, Iron Cycling, bioremediation, genetic engineering, Xenobiotics degradation

Topics: Biostatistics, measures of central tendency, measures of variability, probability, permutations, random variables, Bernoulli Distribution, Binomial Distribution, Geometric Distribution, Hyper-geometric Distribution, Negative Binomial Distribution, Poisson Distribution, Multinomial Distribution, Uniform Distribution, Normal Distribution, Multivariate Normal Distribution, Logistic Distribution, Chi-square Distribution, Gamma Distribution, Exponential Distribution, Beta Distribution, Dirichlet Distribution, population sample, central limit theorem, degrees of freedom, parameters estimation, point estimation, maximum likelihood estimation, interval estimation, hypothesis testing, simple linear regression, simple regression model, partitioning total variability, partial correlation, rank correlation, likelihood ratio test, robust regression, curvilinear regression, polynomial regression, segmented regression, Least Significance Difference, intraclass correlation, experimental error, randomized complete block design, Partitioning Total Variability

Topics: ecosystem, populations, population growth, predation, symbiosis, community stability, nutrition circulation, allelochemics, soil development, soil classification, vegetation, watersheds, biogeochemistry, pollution, radioisotope contamination, pesticides, heavy metals, air pollution, lake production, eutrophication, retrogression, community evolution, human ecology, marine productivity, detritus, biosphere