Uploaded on

 

More in: Business , Technology
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
288
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
19
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Irrigation Term: Turgidity Plant: Nandina
  • 2. Japanese Barberry
    • Shrub, deciduous
    • Hardiness Zones: 4a to 8a
    • Height: 3’ to 6’ by Spread : 4’ to 6’
    • Exposure: shade to full sun
    • Leaf Color: Green, Purple – Grown for Foliage not blooms
    • Has small red berries in fall
    • Grows very slowly
    • Looks like a red boxwood
    • Has small thorns
  • 3. Turgidity
    • ' Turgor pressure' or turgidity is the main pressure of the cell contents against the cell wall in plant cells and bacteria cells, determined by the water content of the vacuole
  • 4. Turgidity
    • Very important for plant strength & metabolism
    • A plant with low turgidity is “wilted”
    • Plants can recover if no vessel damage takes place
    • Metabolism and growth suffer if turgidity is lost
    • Supplemental water (irrigation) is required for any commercial production in VA.
  • 5. Types of Irrigation
    • Surface
    • Localized
      • Drip
      • Sprinklers
    • Sub-irrigation
  • 6. Surface Irrigation – Large Scale
    • Use gullies & aquaducts
    • Use flooding
  • 7. Subirrigation
    • Irrigation water is applied to the roots only through underground pipes
      • Areas with high water table
      • Greenhouses
    • Area is soaked for an interval and then water is removed by pumps & stored for next watering
  • 8. Localized
    • Drip
    • Soakers
    • Sprinklers
    • Misters
  • 9. Greenhouse Application
    • Ebb and flow
    • Prevents leaves from getting wet
    • Incomplete drainage may cause oxygen problems for root systems
  • 10. Capillary Mats
    • Similar to ebb & flow
    • Water is held in a saturated mat
    • Algae problems
    • http:// www.ebbandflowmat.com /
  • 11. Spaghetti tubing
    • Works great for medium and large containers
    • Doesn’t work well for small pots or cell packs
    • Can be used in greenhouses or outside nurseries.
  • 12. Spray/mist
    • Same delivery system
    • Change the head for different purposes
    • Mist for propagation
    • Sprinkler for growing
    • Also used for cooling and freeze protection
  • 13. Typical Drip Irrigation System
  • 14. Today
    • Read chapter 26. Pages 663 to 675
    • Answer in your notebook:
      • What plant processes require water?
      • Why would water in the soil be unavailable? How can you measure it?
      • When is the best time of day to water?
      • How can you tell when turfgrass needs water?
      • How many inches of water per week do grass & most plants need?
      • What is a pop-up sprinkler. Where is it used?
      • How deep should the water penetrate in good watering?