Nitrate

This Week on N Field: Iron Deficiency Chlorosis

September 22, 2023

Nebraska Extension Educator Chuck Burr highlights management practices for iron deficiency chlorosis in soybean fields.

Cattle grazing field — Cattle grazing cereal rye cover crop near Tecumseh. (CropWatch file photo)

Pasture and Forage Minute: Planning Cover Crops, Testing Hay Quality and Nitrate Management

September 12, 2023

Tips on selecting and planting cover crops, managing nitrate risks while grazing annuals, and preparing hay samples for testing.

Pasture and Forage Minute: Understanding Nitrate Scores, Corn Silage Pricing

September 6, 2023

Extension educators review the importance of understanding nitrate and nitrate nitrogen scores in forage test results, how to price corn silage to salvage drought-stressed crops, and selecting winter annual forages.

Research team conducts examination in field — (From left) Research team members Matt Girard (CSD intern), Yvon Ukwishaka (SNR graduate student), Sean Kruse (driller's assistant) and Christina Lyons (Beatrice Daily Sun reporter) at Homestead National Historical Park. (School of Natural Resources photo)

Nebraska Water Center Researchers Conduct Statewide Project to Characterize Nitrogen Transformation Beneath the Ground Surface

August 11, 2023

The research team will use their findings to assist ongoing efforts in eliminating nitrate before it reaches groundwater.

Alfalfa windrows — To avoid rain delays on swathing and baling alfalfa hay, producers can lower harvest drying times by using wider windrow swatch and crimper conditioning.

Pasture and Forage Minute: Managing Alfalfa Windows, Grazing Summer Annual Forages and Water Quality

July 10, 2023

Management strategies for curing alfalfa windrows in adverse weather conditions, grazing sudangrass and sorghum-sudan hybrids safely, and water quality issues for livestock on pasture.

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.

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.

Farmers discuss ag tech — Taylor Cross (right), a graduate student in mechanized systems management, speaks with Nebraska ag producers Doug Jones (left) and Tony Jones about the sensor-based fertigation management technology that’s been shown to increase nitrogen-use efficiency and profitability in on-farm research. (Photo courtesy Nebraska Today | Hannah Gaebel Dorn, HG Images)

Sensor-based Fertigation Management Research Boosts Efficiency, Profitability

March 9, 2023

Tested on cornfields in eastern Nebraska, the study's sensor-based fertigation produced about 44 pounds more grain per pound of nitrogen than traditional methods, with an increase in profitability ranging from $28-$40 per acre.

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