Title: Define the characteristics of soil and soilless substrates.
Course: Horticulture Sciences (18052-I) > Section: Applying Science to Horticulture

Definition should include

- the major components of a true soil
- soil classification
- soil texture
- the importance of soil sterilization
- the benefits of organic matter (e.g., compost practices)
- soil amendments and how they can improve soil
- components of soilless substrates
- chemical properties of soilless substrates and their effects on fertility
- physical properties of soilless substrates and their effects on drainage and/or water-holding capacity.

Process/Skill Questions:

- What constitutes a living soil?
- How is soil classified?
- What common substrate components are used in plant production?
- How do the common components of substrates affect plant growth?
- What are the principles of building successful compost?
- What substrate amendments are useful for plant production?
- How does pH affect plant growth?
- How can pH be adjusted?
- How should soil be stored and preserved?
- How often should the soil of indoor plants be changed?