Groundwater

Nebraska river
Part 2 of the Nebraska Rivers series focuses on the Elkhorn and Missouri rivers and their impacts in Nebraska. (Photo by Gary Stone)

Major Nebraska Rivers and Their Drainages: Part 2

May 4, 2023
Part 2 of the Nebraska Rivers series focuses on the Elkhorn and Missouri rivers and their impacts in Nebraska.

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Irrigation system in corn
Producers looking to take advantage of nitrate-nitrogen in groundwater to reduce nitrogen applications this growing season may want to test their wells to determine current levels. Information on testing requirements is available at all local NRD offices.

Don’t Lose Out on Free Nitrogen from Irrigation Water

April 20, 2023
Extension recommendations for calculating the amount of nitrate-nitrogen in irrigation water and optimal timing of applications to reduce the cost of nitrogen inputs in irrigated corn.

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Niobrara River

Major Nebraska Rivers and Their Drainages: Part 1

April 19, 2023
This new series by Nebraska Extension Educator Gary Stone highlights the main rivers in Nebraska and their impacts across the Midwest and Northern Plains.

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Alfalfa and corn fields
As it aggressively scavenges nitrogen in the soil, alfalfa can greatly reduce nitrate contamination of groundwater with no negative implications for future crops if planted in rotations.

Alfalfa in Rotation with Annual Crops Reduces Nitrate Leaching Potential and Increases Soil Organic Carbon Sequestration

March 30, 2023
This UNL research study provides insights on the rotation of annual crops with alfalfa as a highly effective means of reducing nitrate-nitrogen contamination in groundwater.

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Center pivot in field
Sponsored by Nebraska Extension, Ag Update 2023 begins at 9 a.m. in Central City, with a full day of crop production research and findings to inform the 2023 growing season.

Water for Ag and Human Health Focus of 2023 Ag Update

February 3, 2023
This free program will update Nebraska producers on corn production for 2023, USDA initiatives, climate and drought outlooks, with an emphasis in the afternoon session on water issues and irrigation management.

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Sierra Madre Mountain Range Snowpack
The Sierra Madre Mountain Range Snowpack in 2016. (Photo by Gary Stone)

The North Platte River — Multi-use Water, Part 4

August 3, 2022
In this installment of the series, Nebraska Extension Educator Gary Stone reviews the history of the Kortes Unit, which was part of a program that managed water use for the entire Missouri River Basin.

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Seminoe dam
Figure 1. Seminoe dam and reservoir were built in the 1930s, specifically to provide hydropower generation.

The North Platte River — Multi-use Water, Part 3

July 19, 2022
In this installment of the series, Nebraska Extension Educator Gary Stone reviews the history of the Kendrick Project, which resulted in the Seminoe and Alcova dams.

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Grasshopper
With conditions remaining dry this summer, if the grasshopper population in an established field is higher than five hoppers per square yard throughout the field or 15 hoppers per square yard in field margins, insecticides should be considered.

Pasture and Forage Minute: Grasshopper Control, Safe Grazing Guidelines And Blue-green Algae Poisoning

July 13, 2022
Tips for effective control of grasshoppers in alfalfa, prussic acid poisoning from summer annual forages and blue-green algae in livestock water.

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