1 / 23

Understanding Properties of Growing Media

Understanding Properties of Growing Media. Lesson 1. Vermiculite>>>>>. Next Generation Science/Common Core Standards Addressed!.

joshuahill
Télécharger la présentation

Understanding Properties of Growing Media

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Understanding Properties of Growing Media Lesson 1 Vermiculite>>>>>

  2. Next Generation Science/Common Core Standards Addressed! • HS‐LS2‐3. Construct and revise an explanation based on evidence for the cycling of matter and flow of energy in aerobic and anaerobic conditions. [Clarification Statement: Emphasis is on conceptual understanding of the role of aerobic and anaerobic respiration in different environments.] [Assessment Boundary: Assessment does not include the specific chemical processes of either aerobic or anaerobic respiration.] • WHST.9‐12.9 Draw evidence from informational texts to support analysis, reflection, and research. (HS‐LS1‐1) • HSSIC.A.1Understand statistics as a process for making inferences about population parameters based on a random sample from that population. (HS‐LS2‐6)

  3. Agriculture, Food, and Natural Resource Standards Addressed • PS.03.02.02.a. List and summarize the reasons for preparing growing media before planting. • PS.01.02.01.a. Identify the major components of growing media and describe how growing media support plant growth.

  4. TERMS • Aeration – the presence of air • Growing medium – material used for plant growth • Hydroponics – growing plants w/o “soil” • Leach – to remove by percolation • Pore spaces – voids for water or air holding • Soil – outer layer of the earth suitable for plants • Soilless medium – sterile product/s used for plants

  5. Bell Work! • 1. Identify the types of growing media. • 2. Describe the functions of growing media. • 3. Explain the relationship between growing media and plant growth. • 4. Why is a good growing media made up of a variety of components?

  6. Interest ApproachWhat makes a great basketball team? • 5 or more members that work well together. • At least 1 who can score points from 20’ +. • At least 1 who can be used inside the key. • 1 or more who can control the ball. • 1 or more to push the ball inside. • Each player has their strengths!

  7. Interest ApproachWhat makes a great growing medium? • Several components that work well together • 1 or more that hold water. • 1 or more that hold air. • 1 or more sources of nutrients. • 1 or more to help defend against pest. • Components that are sterilized.

  8. Interest ApproachWhich Makes the Best Growing Medium? • Sand • Peat Moss • Field Soil • Vermiculite • Pearlite • Water • Gravel or a mixture!

  9. What are the types of growing media used in floriculture production? • Is “soil” used? • Soil – the earth’s outer crust is full of life! • Bacteria • Fungi • Invertebrates

  10. What are the negatives of using “SOIL” for containers? • Unknown history of: • Pesticides • pH • Fertility level • High shrink / swell • Soil shrinks as it dries – forming cracks • Higher disease probability

  11. So what media should you use? • Sand? Dries to quickly. • Peat moss? Dries to slowly. • Choir? Hard to get wetted. • Water? To little air. • Pearlite? To much air. • Vermiculite? Pricey. • Potting soil mixes? Just right.

  12. The 3 basic types of media! • Soil – natural layer of the earth that supports life. • Soilless – any material for growing plants not containing topsoil. • Hydroponics – plants grown primarily in nutrient solution.

  13. What are the functions of the growing media? • Must provide AIR. • Must provide WATER. • Must provide Nutrients. • Must provide ANCHORE / SUPPORT.

  14. What effect does growing media have on plant growth? • Supplying Nutrients • Some media cannot hold essential elements for plants. Nutrients are leached out to rapidly. • Stressed plants are prone to disease and insect damage – increasing loss. • Reduced growth = lower returns

  15. What effect does growing media have on plant growth? • Supplying Air • As air is reduced, plant stress increases. • Roots need oxygen and water – both in moderation. • Increasing stress increases pest susceptibility and profit loss

  16. Necrotic line patterns in the foliage of a cyclamen affected by impatiens necrotic spot tospovirus (INSV).

  17. What effect does growing media have on plant growth? • Uniformity • Large scale production demands that all plants perform equally. • This is only possible if all plants get equal inputs from a uniform media.

  18. Review

  19. What are the 3 types of media? • Soil • define • Soilless • define • Hydroponics • define

  20. What are the functions of growing media? • Supply Air. • Why? • Supply water. • Why? • Supply nutrients. • Why? • Supply support / anchor. • Why?

  21. Why is it important for media to: • Supply nutrients? • Increase healthy plants,growth and returns. • Supply air? • Reduce diseases and increase profit. • Supply uniformity? • Plant schedules require uniform plant growth!

  22. The End! • Peat Bog!

  23. The End! • Mud Bog!

More Related