Agricultural Irrigation

Agricultural water users can optimize water use efficiency and protect the quality of water resources by applying basic information about irrigation systems, crop water use and management practices.

CornSoyWater: An Online App to Aid in Irrigation Management

Traditional irrigation decision-making relies heavily on experience and requires frequent visits to the field. The process is time consuming and labor demanding, while the results are not quantitative and prone to error.
CropWater App

CropWater App

The UNL CropWater App. A handy tool for irrigators to use in the field to aid in irrigation scheduling.

So What Are We Actually Measuring

When properly calibrated, soil water sensors can give irrigators an accurate measurement of how much water is currently available, and how much has been depleted, in the soil for the crop. When used along with weather data and crop water use data, this accurate measurement of soil water can help irrigators make a more informed decision on when irrigation should start, how much to apply, and when to quit irrigating. When looking at sensors, be sure to have an understanding of soil water content and how they actually measure soil water. 
Is Manure Irrigation Risky Business?

Is Manure Irrigation Risky Business?

Because of a growing concern about manure irrigation, the University of Wisconsin Extension assembled a workgroup to research the concerns. The workgroup included scientists, public health specialists, state agency experts, farmers, conservationists and others. Over the course of two years, the group gathered and studied the science of manure irrigation, which culminated in a report that contains findings, responses and recommendations. This article will review a few of their findings related to bacterial transport as well as highlight some of the reasons why a farmer might opt to apply manure via irrigation rather than other ways.
Determining Crop Water Use

Determining Crop Water Use

Do you know how much water your crop is using on a daily basis?  When I ask this question most guys tell me somewhere between 0.20 - 0.40 inches per day.  Sometimes they are close but wouldn’t it be nice to know for sure?  It is rather simple to figure out if you have the right tools.  An atmometer, such as the ETgage®, is what you need to calculate reference ET.  ET stands for evapotranspiration.  This is the amount of water evaporated from the soil and plant surface and transpired through the plant.
Water and Crops Field Day Offered Aug. 23 in North Platte

Water and Crops Field Day Offered Aug. 23 in North Platte

Nebraska Extension, the Ogallala Water Project and the Nebraska Water Balance Alliance will host a water and crops field day on Aug. 23 at the West Central Research and Extension Center, 402 W. State Farm Road, North Platte.

Checklist for Winterizing Your Center Pivot

Irrigation season has wrapped up here in Nebraska. Now is a good time to evaluate you center pivot to make sure it is ready for winter and for another growing season. Here is a quick list of things to look at before winter sets in.
Problems Regarding Operating Pressure & Uniformity

Problems Regarding Operating Pressure & Uniformity

Center pivots operation below or above the designed water pressure can create uniformity issues across the field and/or increase operating expenses.
Safety Concerns with Center Pivot Irrigation Systems

Safety Concerns with Center Pivot Irrigation Systems

Center pivot irrigation systems have several potential hazards, so personal safety is a priority!
Nebraska Groundwater Levels Rise Following Wet Year

Nebraska Groundwater Levels Rise Following Wet Year

Groundwater levels across much of Nebraska continue to rebound from the historic 2012 drought, according to the 2019 Groundwater-Level Monitoring Report. On average, wells measured in spring 2019 saw a 2.63-foot increase in groundwater levels statewide.

Is It Too Easy To Turn The Irrigation Water On?

I have worked with irrigation management for almost 20 years. Today most farmers are doing a better job than when I started, however many still tend to over apply water -- leaving room for improvement. That left me wondering “Why” and “What could help more farmers apply the optimal amount of irrigation water?”
Now is the Time of Year to Check Pivot Performance

Now is the Time of Year to Check Pivot Performance

Derek M. Heeren1, Associate Professor and Water for Food Global Institute Faculty Fellow Steven R. Melvin2, Extension Educator Aaron Nygren3, Associate Extension Educator Eric Wilkening1, Undergraduate Research Assistant   1 Department of Biological Systems Engineering, University of Nebraska-Lincoln

Agricultural water users can optimize water use efficiency and protect the quality of water resources by applying basic information about irrigation systems, crop water use and management practices.