Title: Identify a variety of greenhouse environmental controls.
Course: Horticulture Sciences (18052-I) > Section: Selecting, Operating, and Maintaining Greenhouses

Identification should include devices and equipment used to maintain optimal growing conditions for plants involving

- lighting
- temperature
- irrigation
- ventilation.

Process/Skill Questions:

- How is light intensity manipulated?
- What is the difference between a short-day and a long-day plant?
- What is the cost comparison between light-emitting diode (LED) and high-intensity discharge (HID) lights?
- When is evaporative cooling a good option?
- What is the science behind DIF?
- Why might a minimum/maximum thermometer need to be reset? How is it done?
- What are the advantages of using a drip system rather than a mist system?
- Given a recommendation of parts-per-million of nitrogen, how are fertilizer formulas calculated?
- What are the advantages of using a portable fertilizer injector over a dedicated system?