the soil. soils are complex mixtures of minerals, water, air, organic matter

9
THE SOIL

Upload: richard-kennedy

Post on 13-Dec-2015

261 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: THE SOIL. Soils are complex mixtures of minerals, water, air, organic matter

THE SOIL

Page 2: THE SOIL. Soils are complex mixtures of minerals, water, air, organic matter

• Soils are complex mixtures of minerals, water, air, organic matter.

Page 3: THE SOIL. Soils are complex mixtures of minerals, water, air, organic matter

• The soil is the “skin of the earth”.

Page 4: THE SOIL. Soils are complex mixtures of minerals, water, air, organic matter

• Soil is the most vital element required for food production.

Page 5: THE SOIL. Soils are complex mixtures of minerals, water, air, organic matter

Sandy: Large particles, less water retention, easily crumbles through the fingers.

Clay: fine particles, Smooth when dry, Sticky when wet, Rich in nutrients.

Loam: Retains water, Retains nutrients, Soft and crumbly.

Page 6: THE SOIL. Soils are complex mixtures of minerals, water, air, organic matter

Sandy clay loamy

Page 7: THE SOIL. Soils are complex mixtures of minerals, water, air, organic matter

We can use the soil to build a house, for planting, to sculpture

Page 8: THE SOIL. Soils are complex mixtures of minerals, water, air, organic matter

We have to recycle, clean and plant trees

Page 9: THE SOIL. Soils are complex mixtures of minerals, water, air, organic matter