Soil Science
Study of soil properties, fertility, and management.
Foundations of Soil Science
Definitions of soil, pedological and edaphological approaches, soil individuals, phases, mineral and organic soils, functions, quality, health, and degradation.
6 lessons
Pedological and Edaphological Concepts of Soil
TOS Alignment
A.1.2: Explain the concepts of the edaphologist versus concepts provided by the pedologist on the definition of soils.
B.3.1: Describe the main characteristics of soils near beaches.
E.1.1: Identify the advantages of soil survey.
Soil Individuals and Soil Bodies
TOS Alignment
A.1.2: Explain the concepts of the edaphologist versus concepts provided by the pedologist on the definition of soils.
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
B.3.1: Describe the main characteristics of soils near beaches.
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
E.1.1: Identify the advantages of soil survey.
Major Components and Phases of Soil
TOS Alignment
A.1.1: Discuss soil as a natural resource.
B.3.1: Describe the main characteristics of soils near beaches.
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
Mineral Soils and Organic Soils
TOS Alignment
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
A.2.2: Classify the various soil horizons of mineral soils versus that of organic soils.
B.2.1: Determine the bulk density and particle density of soils.
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Soil Quality, Soil Health, and Soil Degradation
TOS Alignment
A.1.1: Discuss soil as a natural resource.
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
B.1.3: Analyze how the soil structure highly recommended for upland crops like corn and leafy vegetables differs from that of soils recommended for irrigated rice.
B.3.1: Describe the main characteristics of soils near beaches.
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
C.4.1: Demonstrate how soil macro-organisms affect crop production and their role in the production of organic fertilizers.
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
D.1.5: Describe the different control measures in preventing loss of fertility under lowland conditions.
Minerals, Rocks, Weathering, and Parent Materials
Minerals, rock groups, weathering processes, parent materials, nutrient-bearing minerals, and the relationship of geological materials to soil development.
9 lessons
Minerals and Their Diagnostic Properties
TOS Alignment
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
Primary and Secondary Minerals
TOS Alignment
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
Rocks and the Rock Cycle
TOS Alignment
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
E.1.2: Evaluate the major factors which control soil formation.
Igneous Rocks and Their Agricultural Significance
TOS Alignment
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
E.1.2: Evaluate the major factors which control soil formation.
Sedimentary and Metamorphic Rocks
TOS Alignment
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
E.1.2: Evaluate the major factors which control soil formation.
Physical Weathering
TOS Alignment
A.1.1: Discuss soil as a natural resource.
E.1.2: Evaluate the major factors which control soil formation.
Chemical Weathering
TOS Alignment
A.1.1: Discuss soil as a natural resource.
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
E.1.2: Evaluate the major factors which control soil formation.
Biological Weathering
TOS Alignment
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
E.1.2: Evaluate the major factors which control soil formation.
Soil Parent Materials
TOS Alignment
A.1.3: Evaluate the mineral soils and organic soils in the context of their properties, functions, and possible degradation of the environment.
E.1.2: Evaluate the major factors which control soil formation.
Soil Formation, Pedogenic Processes, and Profiles
Soil-forming factors, soil sequences, additions, losses, transformations, translocations, specific pedogenic processes, tropical profiles, master horizons, and horizon notation.
9 lessons
Factors of Soil Formation
TOS Alignment
E.1.2: Evaluate the major factors which control soil formation.
Climate as a Soil-Forming Factor
TOS Alignment
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
E.1.2: Evaluate the major factors which control soil formation.
Organisms and Vegetation in Soil Formation
TOS Alignment
E.1.2: Evaluate the major factors which control soil formation.
Relief, Topography, and Drainage
TOS Alignment
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
E.1.2: Evaluate the major factors which control soil formation.
Time and Soil Development
TOS Alignment
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
E.1.2: Evaluate the major factors which control soil formation.
Fundamental Pedogenic Processes
TOS Alignment
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
Specific Soil-Forming Processes
TOS Alignment
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
Soil Profile, Solum, and Regolith
TOS Alignment
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
A.2.2: Classify the various soil horizons of mineral soils versus that of organic soils.
Master Horizons and Horizon Designation
TOS Alignment
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
A.2.2: Classify the various soil horizons of mineral soils versus that of organic soils.
Soil Texture, Structure, Density, Porosity, and Morphology
Particle size, textural classes, field and laboratory texture determination, structure, aggregation, puddling, density, porosity, consistence, compaction, color, and drainage indicators.
15 lessons
Soil Particle-Size Fractions
TOS Alignment
B.1.2: Analyze how the soil texture highly recommended for upland crops like corn and leafy vegetables differ from those of soils recommended for irrigated rice.
B.3.1: Describe the main characteristics of soils near beaches.
Soil Textural Classes and the Textural Triangle
TOS Alignment
B.1.1: Compare soil texture from soil structure.
B.1.2: Analyze how the soil texture highly recommended for upland crops like corn and leafy vegetables differ from those of soils recommended for irrigated rice.
Field Determination of Soil Texture
TOS Alignment
B.3.1: Describe the main characteristics of soils near beaches.
Mechanical Analysis of Soil Texture
TOS Alignment
B.1.1: Compare soil texture from soil structure.
Soil Texture and Crop Suitability
TOS Alignment
B.1.2: Analyze how the soil texture highly recommended for upland crops like corn and leafy vegetables differ from those of soils recommended for irrigated rice.
B.3.1: Describe the main characteristics of soils near beaches.
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
Soil Structure and Structural Units
TOS Alignment
B.1.1: Compare soil texture from soil structure.
B.1.3: Analyze how the soil structure highly recommended for upland crops like corn and leafy vegetables differs from that of soils recommended for irrigated rice.
Soil Aggregation and Aggregate Stability
TOS Alignment
B.1.1: Compare soil texture from soil structure.
B.1.3: Analyze how the soil structure highly recommended for upland crops like corn and leafy vegetables differs from that of soils recommended for irrigated rice.
Soil Structure Management and Puddling
TOS Alignment
B.1.3: Analyze how the soil structure highly recommended for upland crops like corn and leafy vegetables differs from that of soils recommended for irrigated rice.
Particle Density
TOS Alignment
B.2.1: Determine the bulk density and particle density of soils.
Bulk-Density Computations
TOS Alignment
B.2.1: Determine the bulk density and particle density of soils.
Soil Porosity and Pore Classification
TOS Alignment
B.2.1: Determine the bulk density and particle density of soils.
Soil Consistence, Tilth, and Compaction
TOS Alignment
B.1.1: Compare soil texture from soil structure.
Soil Color and the Munsell System
TOS Alignment
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
B.1.1: Compare soil texture from soil structure.
Redoximorphic Features and Drainage Interpretation
TOS Alignment
A.2.1: Characterize a typical soil profile demonstrating the significant layers when developed under tropical condition.
Soil Water, Aeration, Temperature, and Submerged Soils
Water cycle, water retention, potentials, moisture constants, water movement, measurement, aeration, soil temperature, submerged soil chemistry, lowland conditions, and coastal limitations.
12 lessons
Soil Water and the Hydrologic Cycle
TOS Alignment
B.3.1: Describe the main characteristics of soils near beaches.
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
Forces Holding Water in Soil
TOS Alignment
B.1.2: Analyze how the soil texture highly recommended for upland crops like corn and leafy vegetables differ from those of soils recommended for irrigated rice.
B.1.3: Analyze how the soil structure highly recommended for upland crops like corn and leafy vegetables differs from that of soils recommended for irrigated rice.
B.3.1: Describe the main characteristics of soils near beaches.
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
Soil-Water Potential
TOS Alignment
B.3.1: Describe the main characteristics of soils near beaches.
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
Soil-Moisture Constants
TOS Alignment
B.3.1: Describe the main characteristics of soils near beaches.
Soil-Water Retention Curves
TOS Alignment
B.1.1: Compare soil texture from soil structure.
B.1.3: Analyze how the soil structure highly recommended for upland crops like corn and leafy vegetables differs from that of soils recommended for irrigated rice.
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
Soil-Moisture Content Calculations
TOS Alignment
B.2.1: Determine the bulk density and particle density of soils.
Infiltration, Percolation, and Capillary Movement
TOS Alignment
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
Saturated and Unsaturated Water Flow
TOS Alignment
B.1.3: Analyze how the soil structure highly recommended for upland crops like corn and leafy vegetables differs from that of soils recommended for irrigated rice.
B.3.1: Describe the main characteristics of soils near beaches.
Soil Aeration and Gas Exchange
TOS Alignment
B.3.1: Describe the main characteristics of soils near beaches.
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Submerged, Lowland, and Coastal Soils
TOS Alignment
B.3.1: Describe the main characteristics of soils near beaches.
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
Soil Colloids, Clay Mineralogy, and Ion Exchange
Soil colloids, silicate clay structures, non-crystalline minerals, oxides, humus, charge development, adsorption, ion exchange, CEC, base saturation, and ESP.
12 lessons
Soil Colloids and Specific Surface Area
TOS Alignment
B.3.1: Describe the main characteristics of soils near beaches.
Noncrystalline Minerals and Oxides
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Humus as an Organic Colloid
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Permanent and Variable Charge
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Ion Adsorption and Exchange
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Cation Selectivity and Exchange Reactions
TOS Alignment
C.3.2: Evaluate the important factors to consider in the choice of liming materials to be applied.
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
Cation Exchange Capacity
TOS Alignment
C.1.1: Assess the essentiality of fertilizers with macro elements for crop production in relation to the growth of an agricultural country.
C.1.2: Assess the essentiality of fertilizers with micro elements for crop production.
Soil pH, Acidity, Liming, Salinity, and Sodicity
Soil reaction, nutrient availability, acidity pools, buffering, liming materials, lime requirement, acid soil amendments, calcareous soils, salinity, sodicity, and reclamation.
13 lessons
Soil pH and the pH Scale
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Soil pH and Nutrient Availability
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Sources and Development of Soil Acidity
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
Pools of Soil Acidity
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
C.3.2: Evaluate the important factors to consider in the choice of liming materials to be applied.
Soil Buffering Capacity
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Liming Materials
TOS Alignment
C.3.2: Evaluate the important factors to consider in the choice of liming materials to be applied.
Lime Requirement and Liming Decisions
TOS Alignment
C.3.2: Evaluate the important factors to consider in the choice of liming materials to be applied.
Effects and Risks of Liming
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
C.3.2: Evaluate the important factors to consider in the choice of liming materials to be applied.
Gypsum and Other Acid-Soil Amendments
TOS Alignment
C.3.2: Evaluate the important factors to consider in the choice of liming materials to be applied.
Soil Alkalinity and Calcareous Soils
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Salinity, Sodicity, EC, SAR, and ESP
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Saline, Sodic, and Saline-Sodic Soils
TOS Alignment
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Reclamation of Salt-Affected Soils
TOS Alignment
B.3.1: Describe the main characteristics of soils near beaches.
B.3.2: Explain why irrigated rice could not be planted in areas near the beaches.
Soil Organisms, Organic Matter, and Composting
Soil food webs, macroorganisms, microorganisms, rhizosphere biology, mycorrhizae, organic matter pools, decomposition, C:N ratio, nutrient transformations, composting, and organic fertilizer quality
11 lessons
Soil Organisms and the Soil Food Web
TOS Alignment
C.4.1: Demonstrate how soil macro-organisms affect crop production and their role in the production of organic fertilizers.
Earthworms and Other Soil Macroorganisms
TOS Alignment
C.4.1: Demonstrate how soil macro-organisms affect crop production and their role in the production of organic fertilizers.
Soil Bacteria and Archaea
TOS Alignment
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Soil Fungi, Actinomycetes, Algae, and Protozoa
TOS Alignment
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Rhizosphere, Mycorrhizae, and Beneficial Microorganisms
TOS Alignment
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Soil Organic Matter Fractions and Pools
TOS Alignment
C.4.1: Demonstrate how soil macro-organisms affect crop production and their role in the production of organic fertilizers.
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
Effects of Organic Matter on Soil Properties
TOS Alignment
C.4.1: Demonstrate how soil macro-organisms affect crop production and their role in the production of organic fertilizers.
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Organic Matter Decomposition
TOS Alignment
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Carbon-to-Nitrogen Ratio, Mineralization, and Immobilization
TOS Alignment
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Nitrogen, Phosphorus, and Sulfur Transformations
TOS Alignment
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Composting and Organic-Fertilizer Quality
TOS Alignment
C.4.1: Demonstrate how soil macro-organisms affect crop production and their role in the production of organic fertilizers.
C.4.2: Demonstrate how soil micro-organisms affect crop production and their role in the production of organic fertilizers.
Plant Nutrition and Soil Fertility
Fertility versus productivity, essentiality, macro and micronutrients, nutrient functions, mobility, corn deficiency symptoms, nutrient forms, availability, movement to roots, uptake, response laws, soil testing, and plant analysis.
15 lessons
Soil Fertility and Soil Productivity
TOS Alignment
C.1.2: Assess the essentiality of fertilizers with micro elements for crop production.
D.1.1: Explain how soil fertility differs from soil productivity.
Criteria of Nutrient Essentiality
TOS Alignment
C.1.1: Assess the essentiality of fertilizers with macro elements for crop production in relation to the growth of an agricultural country.
Classification of Plant Nutrients
TOS Alignment
C.1.1: Assess the essentiality of fertilizers with macro elements for crop production in relation to the growth of an agricultural country.
C.1.2: Assess the essentiality of fertilizers with micro elements for crop production.
Nitrogen, Phosphorus, and Potassium Functions
TOS Alignment
C.1.1: Assess the essentiality of fertilizers with macro elements for crop production in relation to the growth of an agricultural country.
Calcium, Magnesium, and Sulfur Functions
TOS Alignment
C.1.1: Assess the essentiality of fertilizers with macro elements for crop production in relation to the growth of an agricultural country.
Micronutrient Functions
TOS Alignment
C.1.2: Assess the essentiality of fertilizers with micro elements for crop production.
Nutrient Mobility and Deficiency-Symptom Location
TOS Alignment
C.2.1: Illustrate the general appearance of corn plants when deficient in nitrogen, phosphorous, and potassium.
Nitrogen, Phosphorus, and Potassium Deficiency in Corn
TOS Alignment
C.2.1: Illustrate the general appearance of corn plants when deficient in nitrogen, phosphorous, and potassium.
Nutrient Forms and Availability in Soil
TOS Alignment
C.2.2: Demonstrate how each of the elements - nitrogen, phosphorous and potassium failed to enter the plant roots at sufficient levels.
D.1.2: Demonstrate how soil nutrients reach the root surfaces of plants.
Nutrient Movement to Root Surfaces
TOS Alignment
C.2.2: Demonstrate how each of the elements - nitrogen, phosphorous and potassium failed to enter the plant roots at sufficient levels.
D.1.2: Demonstrate how soil nutrients reach the root surfaces of plants.
Nutrient Uptake by Roots
TOS Alignment
C.2.2: Demonstrate how each of the elements - nitrogen, phosphorous and potassium failed to enter the plant roots at sufficient levels.
D.1.2: Demonstrate how soil nutrients reach the root surfaces of plants.
Factors Limiting Nutrient Availability and Uptake
TOS Alignment
C.2.2: Demonstrate how each of the elements - nitrogen, phosphorous and potassium failed to enter the plant roots at sufficient levels.
Liebig's Law and Nutrient-Response Curves
TOS Alignment
D.1.1: Explain how soil fertility differs from soil productivity.
Plant Analysis and Integrated Diagnosis
TOS Alignment
C.2.1: Illustrate the general appearance of corn plants when deficient in nitrogen, phosphorous, and potassium.
C.2.2: Demonstrate how each of the elements - nitrogen, phosphorous and potassium failed to enter the plant roots at sufficient levels.
C.3.1: Demonstrate how soil pH affects the availability of essential elements for plant growth and development.
Fertilizers and Nutrient Management
Fertilizer terminology, nutrient carriers, organic and inorganic sources, grades, ratios, blends, conversions, inorganic and organic requirement calculations, placement, timing, and integrated nutrient management.
13 lessons
Fertilizer Terminology and Grade
TOS Alignment
D.2.1: Calculate how inorganic fertilizer requirements is done.
Nitrogen Fertilizers
TOS Alignment
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
D.1.5: Describe the different control measures in preventing loss of fertility under lowland conditions.
D.2.1: Calculate how inorganic fertilizer requirements is done.
Phosphorus Fertilizers
TOS Alignment
D.2.1: Calculate how inorganic fertilizer requirements is done.
Potassium Fertilizers
TOS Alignment
D.2.1: Calculate how inorganic fertilizer requirements is done.
Secondary and Micronutrient Fertilizers
TOS Alignment
C.1.2: Assess the essentiality of fertilizers with micro elements for crop production.
D.2.1: Calculate how inorganic fertilizer requirements is done.
Organic Fertilizers and Manures
TOS Alignment
D.2.2: Calculate how organic fertilizer requirements is done.
Computing Nutrient Requirement from Fertilizer Grade
TOS Alignment
D.2.1: Calculate how inorganic fertilizer requirements is done.
Fertilizer Grade, Ratio, and Blend Computations
TOS Alignment
D.2.1: Calculate how inorganic fertilizer requirements is done.
Elemental and Oxide Conversions
TOS Alignment
D.2.1: Calculate how inorganic fertilizer requirements is done.
Organic-Fertilizer Requirement Computations
TOS Alignment
D.2.2: Calculate how organic fertilizer requirements is done.
Fertilizer Placement Methods
TOS Alignment
C.2.2: Demonstrate how each of the elements - nitrogen, phosphorous and potassium failed to enter the plant roots at sufficient levels.
D.1.2: Demonstrate how soil nutrients reach the root surfaces of plants.
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
D.1.5: Describe the different control measures in preventing loss of fertility under lowland conditions.
Timing and Split Application
TOS Alignment
D.2.1: Calculate how inorganic fertilizer requirements is done.
Integrated Nutrient Management and the 4R Principle
TOS Alignment
C.1.1: Assess the essentiality of fertilizers with macro elements for crop production in relation to the growth of an agricultural country.
C.1.2: Assess the essentiality of fertilizers with micro elements for crop production.
Soil Erosion, Conservation, and Land Management
Erosion mechanics, water and wind erosion, erosivity, erodibility, slope effects, USLE, biological and engineering measures, conservation tillage, upland and lowland fertility protection, and restoration.
11 lessons
Soil Erosion Processes
TOS Alignment
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
D.1.5: Describe the different control measures in preventing loss of fertility under lowland conditions.
Forms of Water Erosion
TOS Alignment
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
Erosivity and Erodibility
TOS Alignment
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
Effects of Slope on Soil Fertility Loss
TOS Alignment
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
Universal Soil Loss Equation
TOS Alignment
D.1.3: Determine the impact of different slopes in loss of soil fertility in the presence of intense rainfall.
Agronomic and Biological Conservation Measures
TOS Alignment
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
Mechanical and Engineering Conservation Measures
TOS Alignment
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
Conservation Tillage and Soil-Cover Management
TOS Alignment
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
Upland Soil-Fertility Conservation
TOS Alignment
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
Lowland Soil-Fertility Management
TOS Alignment
D.1.5: Describe the different control measures in preventing loss of fertility under lowland conditions.
Restoration of Degraded Soils
TOS Alignment
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
Soil Survey, Classification, and Land Evaluation
Survey purposes, procedures, mapping units, taxonomic categories, diagnostic horizons, moisture and temperature regimes, the twelve soil orders, family and series, land capability, and land suitability.
12 lessons
Principles and Categories of Soil Taxonomy
TOS Alignment
E.2.1: Illustrate the significant features of soil taxonomy.
E.2.2: Illustrate the basis of naming the six categories of soil classification.
Diagnostic Surface Horizons
TOS Alignment
E.2.1: Illustrate the significant features of soil taxonomy.
Diagnostic Subsurface Horizons
TOS Alignment
E.2.1: Illustrate the significant features of soil taxonomy.
Soil Moisture and Temperature Regimes
TOS Alignment
E.2.1: Illustrate the significant features of soil taxonomy.
The Twelve Soil Orders
TOS Alignment
E.2.1: Illustrate the significant features of soil taxonomy.
E.2.3: Demonstrate how the names of the ten soil orders were derived.
Recognition of Agriculturally Important Soil Orders
TOS Alignment
E.2.1: Illustrate the significant features of soil taxonomy.
Soil Family and Soil Series
TOS Alignment
E.2.1: Illustrate the significant features of soil taxonomy.
E.2.2: Illustrate the basis of naming the six categories of soil classification.
Land Capability Classification
TOS Alignment
D.1.4: Describe the different control measures in preventing loss of fertility under upland conditions.
D.1.5: Describe the different control measures in preventing loss of fertility under lowland conditions.
E.2.1: Illustrate the significant features of soil taxonomy.
Integrated Philippine Soil Management
Upland, irrigated rice, coastal, beach, volcanic, acid tropical, and degraded soil cases; integrated diagnosis; computation; and management recommendations.
7 lessons
