Soil Physics Genesis and Classification Syllabus – Fourth Semester (BSc.AG)

Course CodeSSC 203
Course TitleSoil Physics, Genesis and Classification
Credit Hour2 (1+1)
Full Marks50
Theory25
Practical25

Objectives

Upon the completion of this course, the students will be able to know basic knowledge of soil physics especially soil water movement, genesis, soil forming process and mineral weathering and use diagnostic soil properties for developing soil classification systems.

Syllabus for Soil Physics, Genesis and Classification in BSc. Agriculture

Quantitative concept of soil physics, Energy concepts and measurement of soil moisture, total soil water potential, gravitational potential, pressure potential and osmotic potential, quantitative expression of soil-water potential; soil moisture characteristic curve; flow of water in saturated, unsaturated and vapor forms; infiltration characteristics, classes and role of soil moisture and temperature regimes; soil forming processes; macro and micro morphological properties of soils; modern soil classification system; kinds and distribution of soils of Nepal and potential uses.

Course Outline

A. Theory

S.NTopic / Chapter NameNo. of Lectures.
1Quantitative concept of soil physics, Energy concepts and measurement of soil moisture:  total soil water potential, gravitational potential, pressure potential and osmotic potential, quantitative expression of soil-water potential and measurement of soil moisture1
2Soil moisture characteristic curves and soil moisture tension   1
3Flow of water through the soil: saturated, unsaturated and vapor forms1
4Air and heat movement in soil and Infiltration characteristics of soil1
5Soil aeration: significance, composition and mechanism of renewal; emission of greenhouse gas from soils1
6Soil forming Factors and processes, weathering of rocks and minerals 2
7Soil profile and its horizon: Soil Profile, diagnostic horizons and designations; Surface and sub-surface diagnostic horizons2
8Soil moisture and temperature regimes1
9Introduction and history of soil classification and modern soil classification systems1
10Classification of soil according to soil taxonomy: FAO/UNESCO  system of soil classification 2
11Soils of Nepal and their suitability for different purposes          
2
Total15

B. practical

S.NTopic / Chapter NameNo. of Practical
1Determination of soil wetness by gravimetric, volumetric and soil depth1
2Determination of water availability by resistance method1
3Mass and volume relationships of soil constituents: sample problems1
4Measurement of soil-moisture potential by field tensiometer               1
5Calculation of water quantities                                                            1
6Observation of capillary process of soil                                            1
7Demonstration and explanation of already developed different types
and scale of soil maps, aerial photograph topographic maps and report
1
8Observation and description of the color plates for dominant genetic processes involved in soil development1
9Determination of saturated Hydraulic Conductivity of soil2
10 Learning practices of describing sample soil profiles for comparative  interpretations and classification under distinctive landscapes2
11Development of soil maps and reports1
12Group presentation2
Total15

References

Daniel Hillel. 2004. Introduction to Environmental Soil Physics. Elsevier Academic Press.

Stanley W. Buol, R.J. Southard, R.C. Graham, and P.A. McDaniel. 2011. Soil Genesis and classification. 6th Ed. Wiley-Blackwell.

Nyle C. Brady and Ray R. Weil. 2012. The Nature and Properties of Soils. 14th Ed. Prentice- Hall, Inc.

S. W. Buol, F. D. Hole, R. J. McCracken and R. J. Southard. 1997. Soil Genesis and Classification. 4th Ed. Iowa State University Press / Ames.

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