With irrigation systems running across Kansas fields, a simple adjustment could make a big difference in conserving water and boosting crop performance —slowing down the speed of center pivot systems. Kansas State University water resource engineer Jonathan Aguilar said “when a pivot moves too quickly, much of the water applied doesn’t have time to soak into the soil. Slowing down the pivot gives the soil more time to absorb moisture, improving irrigation effectiveness.”
Key Irrigation Strategies for 2025
Aguilar’s research focuses on practical solutions that farmers can implement immediately without needing costly upgrades. He outlined several strategies to improve irrigation efficiency this season:
• Monitor soil moisture before irrigating. Aguilar advises using soil moisture sensors or simply checking soil conditions in the field. If the soil surface is still saturated or water is pooling, it’s a clear sign that you can wait before irrigating again. Slowing the system without causing runoff ensures water reaches the root zone rather than being lost in evaporation.
• Match application rates to crop needs. Overwatering early in the season is a common mistake that wastes water and can harm crop development. Aguilar recommends adjusting irrigation schedules based on crop growth stages, weather patterns, and evapotranspiration data. Monitoring forecasts and rainfall can also help avoid unnecessary irrigation. Much of the water savings are easily gained early and late in the cropping season, and during rain events.
• Irrigate during cooler parts of the day. High temperatures and strong winds during the afternoon hours contribute to significant water loss through evaporation. Aguilar recommends scheduling irrigation for early morning or late evening hours to minimize evaporation losses, when feasible. Research shows that irrigating during the hottest part of the day can lead to 10-25% more water loss through evaporation.
• Ensure uniform water application. Regularly inspect pivot nozzles to ensure they operate correctly and provide even coverage across the field. Malfunctioning nozzles can result in overwatering some areas and underwatering others, reducing overall efficiency and possibly yield.
While new technologies can improve irrigation systems, adjusting pivot speed is a low-cost, high-impact change that can deliver immediate benefits.
“Farmers often believe that speeding up the pivot will help them stay ahead of the crop’s water demands,” Aguilar said. “But in reality, moving too fast often does more harm than good. Slowing the system allows for better infiltration and helps crops become more resilient during dry periods.”
With water resources becoming increasingly scarce and costly, Aguilar encourages producers to revisit their irrigation management plans and consider how simple changes can lead to better outcomes.
For more information on irrigation efficiency and water management strategies, visit ksre.ksu.edu or contact your local K-State Research and Extension office.
Information provided by Jonathan Aguilar and Kelsey Stremel, KSRE news.
Stacy Campbell is an Agriculture and Natural Resources agent for Cottonwood Extension District. Email him at scampbel@ksu.eduor call the Hays office, 785-628-9430.
