Soil Science Lecture Notes PDF
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Uploaded by ChivalrousMossAgate1187
University of Saskatchewan
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Summary
This document covers the components and properties of soil, including mineral matter, air, water, and organic matter. It also describes the processes of weathering of rocks & minerals, and details the three soil separates (sand, silt, and clay).
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AGRICULTURE 111: Plant and Soil Science Soil Science Lecture Learning Outcomes: SOIL SCIENCE MODULE 1 What are the components of soil? Mineral matter, air, and water, along with soil microorganisms and soil organic matter. What are the ideal proportions of soil? 25%...
AGRICULTURE 111: Plant and Soil Science Soil Science Lecture Learning Outcomes: SOIL SCIENCE MODULE 1 What are the components of soil? Mineral matter, air, and water, along with soil microorganisms and soil organic matter. What are the ideal proportions of soil? 25% air, 25% water, 5% SOM, 45% mineral matter. What are the 3 core properties of soil? Texture, Mineralogy, Soil Organic Matter. What is the difference betweens rocks and minerals? Minerals- solid crystalline material Rocks- naturally occurring mixture composed of 2+ minerals What is mechanical weathering? Breaking down a rock into smaller pieces, without changing its chemical composition. What is biogeochemical weathering? Changes the chemical composition of rocks and minerals. What are the 3 soil separates? Rank them in size from biggest to smallest. Sand, Silt, and Clay Sand 0.2-0.05 mm Silt 0.05-0.002 mm Clay
