Crop Production

The production of crops is the heart of Nebraska's economy. Water is essential to all plant growth. Thus Nebraska's economy relies on a plentiful supply of water to produce crops – in both rainfed and irrigated environments. Several factors involved with producing crops interact with either water supply or water quality issues – or both.

Thursday May 29, 2025

Managing Corn Irrigation in South-central Nebraska: Insights for 2025 Under New Groundwater Allocations

Cutting irrigation doesn’t have to cut yield — as groundwater allocations take effect, 2024 field data show high corn yields are achievable within new NRD limits. Now’s the time to adopt proven scheduling tools and strategies to make every inch count.

Friday June 13, 2025

How is Crop ET Used for Irrigation Decisions?

Your crop is talking. Crop ET helps you listen. Use crop evapotranspiration to know when and how much to irrigate.

Thursday April 10, 2025

Using Irrigation Scheduling Tools to Save Water Without Sacrificing Yield

Results from a series of UNL field trials in 2024 that compared traditional irrigation practices with data-driven scheduling tools highlight the potential for smarter irrigation to boost sustainability and reduce costs on the farm.

Friday May 2, 2025

Efficiency’s Role in Irrigation and Nitrogen Use

Advanced tools like soil moisture sensors, variable rate irrigation, and precision nitrogen management are driving gains in input efficiency and on-farm profitability.

Wednesday April 23, 2025

Introducing PLAN: Mobile Irrigation Management App

Unlock real-time, in-field decision-making with UNL's new PLAN mobile app — bringing irrigation insights, crop water use and weather data straight to your fingertips.

Thursday May 8, 2025

Ten Ways to Cut Nitrogen Fertilizer Expenses

With urea ammonium nitrate in short supply, Nebraska corn growers must make every pound of nitrogen count — start optimizing your N strategy today with these UNL recommendations and tools.

Monday May 19, 2025

Groundwater regulation impacts on Nebraska land values

With new regulations being implemented in Nebraska because of falling groundwater levels, you may be wondering how they will impact the value of agricultural lands in those regions. Ag economists from the University of Nebraska - Lincoln and Daugherty Water for Food Global Institute analyzed what has happened historically. Their findings: Land values were unaffected by groundwater allocations. Neither allocations or well moratoria had any significant effect on the value of land that had already been developed for irrigation. Well moratoria reduced the value of dryland acres by 9%.

Tuesday January 20, 2026

2026 Nitrogen Challenge continues with 'Shop Talk'

Join us for this opportunity to dig deeper and 'talk

Variety Selection & Tests

EC197, Using Winter Wheat Yield Data to Improve Variety Selection PDF only (224 KB; 8 pages) This extension circular describes a method for comparing and selecting various wheat varieties.

Phenology

Simulating Crop Phenology by Gregory S. McMaster, from The Regional Institute, 4th International Crop Science Congress, 2004. Simulating Crop Phenological Responses to Water by Gregory McMaster, John White, A. Weiss, P. Baenziger, Wallace Willhelm, J. Porter, P, Jamieson; USDA Agricultural Research Service; Jan. 2008.

Cover Crops

Crops including grasses, legumes or forbs used for seasonal cover and other conservation purposes. SARE Publications 2007, Managing Cover Crops Profitably, 3rd Edition. Beltsville, MD: Sustainable Agriculture Network, 244 pgs. $19 for book; PDF version available.

Irrigation Scheduling

G1579, Using Modified Atmometers (ETgage) for Irrigation Management Describes the atmometer (evapotranspiration gage) and explains how it can be used for irrigation scheduling. Examples are provided to show how information collected with an atmometer can be used to estimate crop water use for corn and soybean. PDF version (975 KB; 4 pages)