101: Controlled Agriculture Demo

The below content replicates the content of the physical exhibit at CSU Spur. It can be used for reference, language translation, and additional accessibility.

Change the Colors 

Interactive Laboratory  
  • Blue: 400-500 nm  
  • Red: 600-700 nm  
  • Far-red: 735 nm  
  • White (5700K)  

Growing with Light  

Controlled Environment Horticulture (CEH)  

Turn the dials to change the different colors (wavelengths) of light.  

This area is an indoor space that uses technology, like light, to help plants grow. This is called Controlled Environment Horticulture (CEH). The light used in this space is from light-emitting diodes (LEDs). These lights are bright and use very little energy. 

The different colors we see depends on the wavelength of light. The human eye can see wavelengths between 380-770 nanometers (nm) and plants use light in this range (400-700 nm) to grow! See the color ranges in Figure 1. Plants use blue and red light to make energy, and far-red light helps many plants flower. Turn the white LED dial and you’ll see that the plants appear green; this is because the leaves reflect green wavelengths of light.  

Visit the CEH Lab on the 2nd floor to learn more about lighting research at CSU.

Figure 1. LED colors (wavelengths) of light. Find BLUE at 400-500 nm, GREEN at 500-600 nm, RED at 600-700 nm, and FAR-RED at 700-800 nm.  


Associate Attorney, Navajo Tribal Utility Authority

Ms. Becker has dedicated her career to the Navajo Nation and its natural resources.  She is currently serving as an Associate Attorney for the Navajo Tribal Utility Authority.  Prior to this position, she had the honor of serving as the Director of the Navajo Nation Division of Natural Resources from May 2013 to January 2019, as an appointee of President Begaye and Vice-President Nez, after serving eleven (11) years as an attorney for the Navajo Nation focusing on water rights and natural resources issues.  Continuing her deep interest and passion for water, she serves on the Leadership Team for the Water and Tribes Initiative in the Colorado River Basin, as a Commissioner on the New Mexico Interstate Stream Commission, as an appointee of Governor Lujan Grisham, and on the Navajo Nation Water Rights Commission, as an appointee of Speaker Damon.  Ms. Becker is equally passionate about supporting artists and serves as a Trustee for the Institute of American Indian Arts and Culture (IAIA), as an appointee of President Obama.  Ms. Becker is a member of the Nation and lives on the Navajo Nation in Fort Defiance with her husband and two school age children.

Wave art