At this Field Day, you’ll learn how to build and fill a Johnson-Su Bioreactor—a low-maintenance, no-turn composting system designed by Dr. David Johnson and Hui-Chun Su. It’s ideal for dry climates, using up to six times less water than traditional composting and requiring no tractor or heavy equipment. The resulting compost is microbe-rich and helps restore soil health.

Participation is free, and if you’d like to build your own bioreactor, you can purchase a kit at cost ($80 full-scale, $40 half-scale, $20 2’x2′). Payment can be made during registration. If you’re taking a kit home, please bring a truck or large vehicle for transport.

This is a free field day, but participation is capped at 20 people. To save your spot, please preregister. We have limited parking on the farm so we encourage car pooling. 

Date: Sunday November 23, 2025
Time: 10:00 AM - 2:00 PM

Location: Bodhi Farm 35 Leebarry Lane Las Cruces, NM 88012

General Agenda:

10 AM – 10:15 AM | Welcome & Introductions

10:15 – 10:30 AM |  Intro plant-microbe symbiosis 

10:30 – 11:00 AM | Instructions and safety overview 

11:00 AM – 1:00 PM | Build and fill one bioreactor

1:00 PM –  2:00 PM | Lunch on the Farm

What to wear/Bring

• Work clothes and shoes

• Sun protection

• Water Bottle

• Gloves

• Bug Repellent