Arizona Master Irrigators Program opens enrollment in La Paz County

On the Colorado River Indian Reservation, where irrigated ground stretches along 48 miles of the river in western La Paz County, a new training effort is aimed at the people who decide how much water reaches the field. Enrollment opened April 14 for the Arizona Master Irrigators Program, a partnership of the Agribusiness & Water Council of Arizona, the University of Arizona College of Agriculture, Life and Environmental Sciences and University of Arizona Cooperative Extension.

The program is designed for people who are already applying irrigation water on farms, for irrigation district zanjeros and for entry-level workers. Its goal is straightforward: help participants become more effective irrigators, no matter how much they already know. The curriculum covers soil and water relationships, plant relationships, calculations, canal and ditch water distribution, irrigation practices, pumps and flow systems, fertility, food safety, field management and safety leadership.

Organizers said the course runs four days and includes hands-on training with moisture sensors and drip systems, two tools that can help growers cut waste and put water where crops need it most. Classes will be offered in English and Spanish, and translation technology will be available for students to take home, a detail that could widen access for crews and managers across the Parker area and the reservation.

That local relevance is hard to miss in western Arizona, where water and farming are tightly linked. The Bureau of Indian Affairs says the H51 Colorado River Indian Irrigation Project provides water for agricultural uses on the Colorado River Indian Tribes Reservation. The reservation also extends into San Bernardino County and Riverside County in California, showing how far the Colorado River’s agricultural reach spreads beyond state lines.

The CRIT farm has been reported at more than 30,000 acres, and tribal agriculture on the river has deeper roots still. A tribal heritage page says the Mohave people have practiced floodplain and irrigated agriculture for more than 4,000 years along the Colorado River, first by following natural flood cycles and later with hand-dug ditches and canals. In that context, the Master Irrigators Program reads less like a classroom and more like another step in a long effort to conserve river water while keeping fields productive.