Agricultural Production Animal Manure Management

Water Quality Challenges

The science behind 50-degree soil and nitrogen application

graphic of thermometer
Does nitrogen becoming nitrate mean we are going to lose it? No, it takes rainfall or snowmelt in the spring that will cause a leaching event, but it does increase the risk of loss. Certainly, there is a balance between making sure we get our manure applied before the soil freezes and applying too early, but hopefully the information above illustrates a bit behind the science of the 50°F and cooling recommendation.

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Protecting Groundwater by Managing Animal Manure Products

A monitoring well
Groundwater is often the main source of drinking water for rural communities, especially in the Midwestern United States, so it is important to keep that water at levels that are safe to drink while minimizing environmental impacts. Although animal manure has many benefits to farmers, it can contaminate groundwater supply if not managed properly. This article discusses important considerations when storing and applying manure and includes requirements for testing of well water.

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Applying Manure Management Concepts On-Farm

LAT flyer preview
This year’s Land Application Recertification sessions, called Applying Manure Management Concepts On-Farm, are scheduled to be in-person at many locations across the state in June, with one taking place in May in Lexington. Manure trainings earlier this year were held virtually, but we’re making progress, and that means we’re looking forward to seeing everyone in-person for the next manure event.

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Manure Phosphorus and Water Quality

Chesapeake Bay experiences summer algae bloom connected with excess phosphorus.
Manure produced in animal feeding operations is a source of fertilizer that can be used to reduce our dependency on commercial fertilizers. Manure contains several essential nutrients that crops that crops rely on to grow, most notably nitrogen and phosphorus. Proper management of manure before, during, and after land application helps to slow down the contamination of our streams and reservoirs.

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Antimicrobial Resistant Bacteria Within Surface Water Bodies

Vertical and horizontal transmission of resistance in bacteria (graphic source: Sonseverino et. al., 2018)
Antimicrobial Resistance (AMR) is a problem currently within public surface water bodies and will continue to challenge animal agriculture. AMR can impair our ability to use antibiotics to fight infections and other ailments. Antimicrobials make their way to our water primarily by ways of industrial waste, manure application, and aquaculture. Using responsible manure spreading practices, runoff prevention, spreading awareness, and partnering with your veterinarian for responsibly using antimicrobials can help aid in the solution.

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