Warren Roberts/George Kuepper Oklahoma Beginning Farmer & Rancher Program 2013 Horticulture #4: August 10 hoop houses, greenhouses, shade houses, windbreaks, and other season extension techniques for both hot and cold weather

1. Intensive Culture & Season Extension
Warren Roberts
George Kuepper

2. Production Temperatures
Garlic, Leek, Onion
• Optimum
• Minimum
• Maximum
• 55-75
• 45
• 85

3. Production Temperatures
Beet, Broccoli, Brussels Sprouts, Cabbage,
Chard, Collards, Kale, Radish, Spinach, Turnip
• Optimum
• Minimum
• Maximum
• 60-65
• 40
• 75

4. Production Temperatures
Carrot, Cauliflower, Lettuce, Mustard, Peas,
Potato
• Optimum
• Minimum
• Maximum
• 60-65
• 45
• 75

5. Production Temperatures
Lima Beans, Snap Beans
• Optimum
• Minimum
• Maximum
• 60-70
• 50
• 80

6. Production Temperatures
Sweet Corn, Southern Pea
• Optimum
• Minimum
• Maximum
• 60-75
• 50
• 95

7. Production Temperatures
Pumpkin, Squash
• Optimum
• Minimum
• Maximum
• 65-75
• 50
• 90

8. Production Temperatures
Cucumber, Muskmelon
• Optimum
• Minimum
• Maximum
• 65-75
• 60
• 90

9. Production Temperatures
Sweet Pepper, Tomato
• Optimum
• Minimum
• Maximum
• 70-75
• 65
• 80

10. Production Temperatures
Eggplant, Hot Pepper, Okra, Sweet Potato,
Watermelon
• Optimum
• Minimum
• Maximum
• 70-85
• 65
• 95

11. Wister Average Temperatures

12. Season Extension
• Season extension refers to
anything that allows a crop to be
cultivated beyond its normal
outdoor growing season.

13. Average Growing Season

14. Wister Average Temperatures

15. Average Fall Freeze

16. Earliest Fall Freeze

17. Cold Season Extension
• Greenhouses
• Hoop Houses
• Cold Frames
• Row Covers
• Raised Beds
• Mulches
• Site Selection

18. Cold Weather Season Extension

19. Cold Weather Season Extension

20. Cloche

21. Multi-Purpose Structure

22. Wister Average Temperatures

23. Days Above 90

24. Days Above 100

25. Hot Weather Season Extension
• Shade Houses
• Floating Shade Covers

26. Hot Weather – Shade Cloth

27. Hot Weather Season Extension
• Mulches
• Mist Systems

28. Evaporative Mist Cooling

29. Average Wind Speed

30. Average Maximum Wind Speed

31. Average Maximum Gust Speed

32. Windbreaks

33. Hot Season Extension
• Site Selection

34. Row Arrangement

35. Combinations –
Epcot – Living with the Land