unit_2.1a_soil_physical - 2.1 Soils and Soil Physical...

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2.1 Soils and Soil Physical Properties Introduction 3 Instructor’s Lecture Outline 5 Detailed Lecture Outline for Students 9 Demonstration 1: Soil Texture Determination 25 Instructor’s Demonstration Outline 25 Demonstration 2: Soil Pit Examination 31 Instructor’s Demonstration Outline 31 Supplemental Demonstrations and Examples 33 Assessment Questions and Key 37 Resources 41 Glossary 43
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2| Unit 2.1 Soil Physical Properties
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Soil Physical Properties Unit 2.1 |3 Introduction Introduction: Soils and Soil Physical Properties UNIT OVERVIEW This unit introduces students to the components of soil and soil physical properties, and how each affect soil use and management. The lecture introduces the components of soil and different concepts of soil and soil physical properties, with special attention to those properties that affect farming and gardening. Through a series of demonstrations and hands-on exercises, students are taught how to determine soil texture by feel and are given the opportunity to examine other soil physical properties such as soil structure, color, depth, and pH. The demonstrations offer an opportunity to discuss how the observed soil properties might affect the use of the soil for farming and gardening. MODES OF INSTRUCTION > LECTURE (1 LECTURE, 3.0 HOURS) The lecture outline introduces students to the components of soil, and different concepts of soil and soil physical properties, with special attention to those properties that affect farming and gardening. > DEMONSTRATION 1: SOIL TEXTURE DETERMINATION (1.0 HOUR) Demonstration 1 teaches students how to determine soil texture by feel. Samples of many different soil textures are used to help them practice. > DEMONSTRATION 2: SOIL PIT EXAMINATION (1.0 HOUR) In Demonstration 2, students examine soil horizons, texture, structure, color, depth, pH, etc. in a large soil pit. Students and the instructor should discuss how the soil properties observed affect the use of the soil for farming, gardening, and other purposes. > SUPPLEMENTAL DEMONSTRATIONS AND EXAMPLES (1 HOUR) These simple demonstrations offer ideas for using objects, samples, or models to illustrate by way of analogy various soil physical properties. > ASSESSMENT QUESTIONS (1.0 HOUR) Assessment questions reinforce key unit concepts and skills. LEARNING OBJECTIVES CONCEPTS • Components of soil • Soil physical properties: What are they? • How soil physical properties affect use •Nutrient deficiency problems SKILLS • How to determine soil texture • How to recognize different types of soil structure
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Soil Physical Properties 4| Unit 2.1 REQUIRED READINGS (SEE RESOURCES SECTION) Gershuny, Grace. 1993. Start With the Soil, Chapter 1; Chapter 2, pp. 27–38; Chapter 8, pp.187–195; Chapter 9, pp. 200–205 Brady, Nyle C., and R. R. Weil. 1999. The Nature and Properties of Soils. Chapter 1, 1.1–1.14 (pp. 1– 22) RECOMMENDED READINGS Stell, Elizabeth P. 1998. Secrets to Great Soil.
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This note was uploaded on 11/30/2010 for the course CIIVIL WNG 33155 taught by Professor Y.bahie during the Spring '10 term at The British University in Egypt.

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unit_2.1a_soil_physical - 2.1 Soils and Soil Physical...

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