Steve Melvin - Extension Educator Irrigated Cropping Systems

(faculty)
Work
PO Box 27 1510 18th St Central City NE 68826
US

Center pivot irrigating late season field of corn.
Figure 1. As you try to use stored soil water without wasting any new precipitation, the last few irrigations of the season require some of the most important water management decisions of the year. (Photo by Steve Melvin)

How to Schedule the Last Few Irrigations of the Season August 10, 2018

Final irrigations of the season are some of the most important water management decisions of the year. This guide walks through how to use weather and field information to schedule final irrigations and avoid costly, needless ones.

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In-canopy center pivot sprinkler head entangled in the corn canopy

In-Canopy vs. Above-Canopy Sprinklers: Consider Pros and Cons April 5, 2018

Center pivot sprinkler packages placed in the canopy have some potential to increase the application efficiency of center pivot and lateral move irrigation systems; however, the challenges of achieving acceptable water application uniformities and preventing local runoff are greatly increased. This is the third of a three-part series helping growers consider in-canopy vs. above-canopy sprinkler packages.

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Wetter diameters of various irrigation sprinkler packages

In-Canopy vs. Above-Canopy Sprinklers: Which is Better Suited to Your Field? (Part 2) March 26, 2018

Center-pivot irrigation sprinkler package designs need to account for the specific pivot, the available water supply, and various attributes of the field where the pivot will be installed. Learn what to consider in this second article of a three-part series assessing in-canopy and above-canopy sprinklers and which is best for a given operation.

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Types of water losses from center pivot irrigation
Types of water losses from center pivot irrigation

In-Canopy vs. Above-Canopy Sprinklers: Which is Better Suited to Your Field? March 23, 2018

This is the first of a three-part series on how to decide whether you want to use in-canopy sprinklers or sprinklers at truss rod height or above on a center pivot. Part 1 addresses water losses from a center pivot and when to replace an existing sprinkler package.

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Center pivot irrigation
The Center Pivot Irrigation Handbook,published by Nebraska Extension, offers detailed information to growers improve the energy and water application efficiencies of their irrigation systems.

Center Pivot Handbook a Comprehensive Guide for Growers March 23, 2018

Center pivot irrigation now accounts for approximately 85% of the irrigated land in Nebraska. To help growers manage and get the most from their system, Nebraska Extension has published the Center Pivot Irrigation Handbook, a 134-page comprehensive guide.

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Screen capture of irrigation scheduling system

View Corn Plots and 7 Demos of Irrigation Scheduling Equipment at Aug. 31 Tour August 25, 2017

View corn variety plots and demonstrations of seven irrigation scheduling systems at the Aug. 31 Hamilton County Corn Growers Tour. The seven systems have been monitoring the same field throughout the season, providing a unique opportunity for growers to compare how each system manages similar information.

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Center pivot with bad sprinklers

Now's a Great Time to Evaluate Your Irrigation System August 18, 2017

Take advantage of final crop irrigations this summer to evaluate system performance and identify leaks or problems to fix or aspects to improve over the winter. Taking time now can pay off in improved irrigation efficiency and reduced costs next season.

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Figure 1. As you try to use stored soil water without wasting any new precipitation, the last few irrigations of the season require some of the most important water management decisions of the year. (Photo by Steve Melvin)

Predicting Late-Season Irrigation Needs August 3, 2017

Given the ups and downs in temperatures this season, crops are likely to mature over a longer period than usual this fall, making it even more important to predict your crop's water needs. The last few irrigations of the season require some of the most important water management decisions of the year.

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