Gain More Ground in Your Orchard With Irrigation Automation

Agricultural irrigation practices have changed dramatically in recent decades. Today, growers are replacing outdated, time-based watering schedules with smart, data-driven automated systems that deliver water with volumetric precision, reducing water use while increasing yields.

Facing tighter water regulations and declining water availability, Guillermo Valenzuela, VP of sales and marketing with WiseConn, says growers should embrace three pillars of modern irrigation: remote-control capabilities, sensor integration, and a centralized, cloud-based management platform.

Valenzuela shared those insights during “From Data to Action: Soil Moisture Monitoring and Automated Irrigation,” a July webinar hosted by American Pistachio Growers (APG).

ELIMINATING HUMAN ERROR

Remote-control capabilities automate critical irrigation tasks, including operating pumps, adjusting valves, and injecting fertilizer. According to Valenzuela, automation also minimizes one of the industry’s biggest challenges: human error.

“Human error is a big portion of what we see happening in California and in big orchards, where irrigations are not being executed properly because the guy [in the field] is doing something else or is far away from the pump, far from the valve, getting late to change the set,” he said.

Remote monitoring also tracks system health, line pressure, and energy consumption in real time, allowing growers to receive alerts about mechanical failures or pumps that fail to start before crop stress develops.

“Having that capability of remotely controlling and monitoring my irrigation system, my energy consumption, my [variable frequency drive], my fertilizer injection gives another level of efficiency to the actual execution that today is being done manually,” Valenzuela said.

BETTER DATA, BETTER DECISIONS

Field sensors — including weather stations used to estimate crop evapotranspiration, soil moisture probes, flow meters, and pressure sensors — provide growers with continuous, actionable data.

“I like to use the metaphor of the heart and your pulse and blood pressure” Valenzuela said. “You gotta measure them both. You can’t just go with one of them.”

A centralized, cloud-based platform completes the system by giving growers real-time access to field data from desktop computers or mobile devices. That allows farm managers to compare irrigation volumes with energy costs, fertilizer expenses, and final yields.

“Today, everything’s in the cloud,” Valenzuela said. “We need to have immediate information, immediate alerts, and immediate feedback from the farm to actually make decisions and take action.”

THE RETURN ON INVESTMENT

While installation costs vary depending on existing infrastructure, block size, and sensor density, Valenzuela says irrigation automation consistently delivers a return on investment by improving water-use efficiency, lowering energy costs, reducing labor requirements, and protecting crop health.

Where existing irrigation infrastructure is well suited for automation upgrades, upfront costs average about $300 per acre, with annual software, data, and maintenance costs of approximately $8 per acre. Simpler systems serving larger blocks may cost as little as $70 per acre, while more complex systems for high-value crops can reach $1,000 per acre.

In traditional, manually operated systems on clay soils — with production costs averaging $3,500 per acre, plus $100 per acre for labor and $400 per acre for fertilizer — automation can eliminate costly operational mistakes. Conservatively, Valenzuela estimates automation reduces water use by 5%, cuts manual labor in half, and lowers fertilizer costs by 5%, saving about $105 per acre annually. At that rate, the initial investment is recovered in about 2.8 years.

The economics become even more attractive in lighter, sandy soils. According to Valenzuela, shifting from infrequent manual irrigation to high-frequency automated irrigation reduces water use by about 15%. Combined with labor savings, growers can expect a payback period of roughly 2.5 years. If more consistent daily irrigation also increases yields by 3% to 5% by reducing crop stress, the investment can pay for itself in less than a year.

“Automation is here to stay,” Valenzuela said. “People are adopting it. New projects are all coming out with automation or with some sort of monitoring system. It helps optimize the operation by reducing cost or increasing yield.”