Westwind Farms and UC Davis: Using Almond Hulls and Shells to Build Organic Matter

Fresh Growth

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In this episode, we talk with Kirk Pumphrey, owner of Westwind Farms in Woodland CA, and Sat Darshan Khalsa, Assistant Professional Researcher at the University of CA Davis about their work integrating almond shells and hulls as organic matter in orchards. As Kirk says, “it’s a learning experience for all of us.”

It’s a learning curve, but they are finding great success and working toward finding the sweet spot of applying not too much or too little in all different conditions. They’ve found that hulls’ and shells’ holding capacity of water is tremendous, but the application does make it hard for oxygen to travel to soil.

Sat Darshan Khalsa notes that the story often in the media is around how many resources it takes to produce one almond. But the full story is that to get that almond a shell, hull, and tree are produced. How do we better use all of these resources and return them to the orchard?

“Lots of this research is aligned with the Almond Board of California’s orchard goals, and we’re able to demonstrate we’re actually doing this, and this is the efficacy of doing so,” says Sat Darshan Khalsa.

Both Kirk and Sat Darshan Khalsa discuss being pro-active without having fear of testing new technologies and trials. Kirk’s philosophy is “let’s try it!”

“Working with soil and farming, you get to find out about real life and it teaches you patience. You have to observe,” says Kirk. And when Sat Darshan Khalsa is asked how to help farmers make changes, he notes “its about teaching courage. A lot of people have willingness to try something new; it’s about letting them know that there is support.”

Learn more about the Western SARE project.

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