Soil Structure Lecture 1 PDF
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Dr. Sabbir Rahman
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Summary
This lecture provides a general introduction to soil structure, including learning objectives, definitions, components, and various aspects of water and other interactions. It contains questions related to the topic.
Full Transcript
Dr. Sabbir Rahman Shuvo Lecture 1 1 Learning objectives ▪ Definition ofSoil ▪ Various characteristic of Soil ▪ Physical ▪ Air ▪ Water ▪ Temperature ▪ Chemical ▪ Redox ▪ pH 2 What is soil The term Soil re...
Dr. Sabbir Rahman Shuvo Lecture 1 1 Learning objectives ▪ Definition ofSoil ▪ Various characteristic of Soil ▪ Physical ▪ Air ▪ Water ▪ Temperature ▪ Chemical ▪ Redox ▪ pH 2 What is soil The term Soil refers to the loose material from earth’s surface, a layer distinctly different from underlying bedrock. Agriculturally Chemically Microbiologically 3 Agriculturally, this layer is supporting plant life: by providing mechanical support and nutrients. Chemically, Soil contains multitude of nutrients, not found in underlying levels. For Microbiologist, Soil layer is unique in many ways - it contains a vast population of bacteria, fungi, actinomycetes, algae and protozoa; it is one of the most dynamic sites of biological interaction in nature - here occurs many biochemical reactions concerned in the destruction and production of organic matter, weathering of rocks, providing nutrition for crops etc. 4 Components of soil in various fields. 5 Description of Soil Soil is composed of Five major components: Components Volume(%) Mineral Matter
