Chapter 12: Soils, Fertility, and Plant Growth

When a plant grows in soil or potting mix it removes nutrients as well as water from the soil. Although a plant produces (fixes) its own carbon-based molecules from photosynthesis, all other nutrients are taken up by the roots from soil. As we harvest plant material and dead plant material decomposes, these nutrients are depleted. This lesson discusses how this process changes soil structure, texture, and fertility.


Learning objectives

  • Understand how the texture, structure, and fertility of soil affect plant growth.
  • Appreciate the different types of soil and manufactured soil-less media for growing plants.




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