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Lesson 19 media and soil

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The document discusses the purposes that soil and other planting media serve for plants. It notes that media provide structure to help plants stay in place, a habitat for beneficial bacteria and worms to live near the plants' roots, and a means to trap nutrients from animal waste as well as water and air close to the roots. Media also act as a protective shield for roots against large temperature changes. The key is choosing a media that fulfills these roles of structure, supporting microbes and animals, nutrient retention, and temperature regulation for optimal plant growth.

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Media What are our plants growing out of? 息 Copyright 2012 The Aquaponic Source, Inc. 1
Why do plants grow out of dirt? A lot of reasons! 息 Copyright 2012 The Aquaponic Source, Inc. 2
Plants need structure They like to stay in place! They do not like to move. 息 Copyright 2012 The Aquaponic Source, Inc. 3
Bacteria (tiny organisms) help plants get nutrients! Bacteria need a place to live near the plants 息 Copyright 2012 The Aquaponic Source, Inc. 4
Worms help plants get nutrients too! They need to live near the plants 息 Copyright 2012 The Aquaponic Source, Inc. 5
Urine and feces from animals have nutrients for the plants The soil or media traps these near the plants 息 Copyright 2012 The Aquaponic Source, Inc. 6
Plants need water and air nearby! Air Water Soil and media hold them close to the plants 息 Copyright 2012 The Aquaponic Source, Inc. 7
Plants do not like big temperature changes Dirt and media protect the roots from big changes 息 Copyright 2012 The Aquaponic Source, Inc. 8
Make sure your media has these! Structure use materials that would help a plant stay still. Bacteria make sure there is surface area for bacteria to live, remember bacteria are very small! Worms worms should be able to move within the media. Urine, feces, water and air all of these should be trapped within your media. Temperature the media should be a shield to the roots against temperature change, make sure roots would not be exposed! 息 Copyright 2012 The Aquaponic Source, Inc. 9

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Lesson 19 media and soil

  • 1. Media What are our plants growing out of? 息 Copyright 2012 The Aquaponic Source, Inc. 1
  • 2. Why do plants grow out of dirt? A lot of reasons! 息 Copyright 2012 The Aquaponic Source, Inc. 2
  • 3. Plants need structure They like to stay in place! They do not like to move. 息 Copyright 2012 The Aquaponic Source, Inc. 3
  • 4. Bacteria (tiny organisms) help plants get nutrients! Bacteria need a place to live near the plants 息 Copyright 2012 The Aquaponic Source, Inc. 4
  • 5. Worms help plants get nutrients too! They need to live near the plants 息 Copyright 2012 The Aquaponic Source, Inc. 5
  • 6. Urine and feces from animals have nutrients for the plants The soil or media traps these near the plants 息 Copyright 2012 The Aquaponic Source, Inc. 6
  • 7. Plants need water and air nearby! Air Water Soil and media hold them close to the plants 息 Copyright 2012 The Aquaponic Source, Inc. 7
  • 8. Plants do not like big temperature changes Dirt and media protect the roots from big changes 息 Copyright 2012 The Aquaponic Source, Inc. 8
  • 9. Make sure your media has these! Structure use materials that would help a plant stay still. Bacteria make sure there is surface area for bacteria to live, remember bacteria are very small! Worms worms should be able to move within the media. Urine, feces, water and air all of these should be trapped within your media. Temperature the media should be a shield to the roots against temperature change, make sure roots would not be exposed! 息 Copyright 2012 The Aquaponic Source, Inc. 9