1.4.1 describe the nature and importance of soil.
Meaning, composition and soil types.
Functions and uses of soil.
Industry
- Clay for ceramics, tiles, pots etc. Physical properties of soils and their importance: soil texture and structure.
- Clay for ceramics, tiles, pots etc. Physical properties of soils and their importance: soil texture and structure.
- brainstorm to explain the term ‘soil’
- discuss the various ways by which soil helps plants to grow and other uses of soil.
show and discuss the importance of living organisms in the soil.
1.4.2 explain the importance of soil profile in crop production – Soil Profile, meaning, description and importance.
i – perform an experiment to demonstrate soil texture by the feel method.
ii- perform experiments to demonstrate Water-holding Capacity and Drainage of sandy, loamy and clayey soils.
iii. perform experiment to demonstrate the capillarity of sandy, loamy and clayey soils.
- note the effects of physical properties of soils on crop growth.
ii- perform experiments to demonstrate Water-holding Capacity and Drainage of sandy, loamy and clayey soils.
iii. perform experiment to demonstrate the capillarity of sandy, loamy and clayey soils.
- note the effects of physical properties of soils on crop growth.
- dig a pit or visit a dugout pit, examine and identify the different horizons of the soil profile.
- describe each horizon under the following headings: Colour, Texture, Porosity, Depth, and Organic Matter Content.
- describe each horizon under the following headings: Colour, Texture, Porosity, Depth, and Organic Matter Content.
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