Life in Soil-B6
- Created by: Shannon
- Created on: 09-06-13 13:57
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- Life in Soil
- Soil contains mineral particles of different sizes
- Sandy soil-smaller particles
- Large soil particles-higher air content and permeability
- Soil with more humus-hold more water and air
- Loam-clay and sand: decomposed plant and animal waste called humus
- Humus content can be found by burning off humus using a bunsen burner
- Humus is important: decompose to release minerals, increase air content
- Humus content can be found by burning off humus using a bunsen burner
- Air content- how much water fills air pockets
- Earthworms
- Bury organic material for decompositio-n
- Neutralise acid soil (plants may not grow if the pH is too high or low
- Mix up, aerate and drain the soil
- Ideas put forward by Charles Darwin
- Soil contains mineral particles of different sizes
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