Manure and the Environment

Agricultural Production Animal Manure Management

Manure and the Environment

Manure contains four primary contaminants that impact water quality: nitrogen, phosphorus, bacteria and other pathogens, and organic matter. Achieving a nutrient balance will reduce potential environmental hazards often associated with animal agriculture. An annual crop nutrient management plan is needed to ensure an adequate supply of nutrients to sustain profitable crop production, and to balance nutrient inputs (including manure) with crop nutrient needs.

Tips for Winter Manure Application

manure application on snow-covered soil, photo credit: Iowa State University
Manure application on frozen or snow-covered soil poses a higher risk of nutrient loss through runoff.

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The gift that keeps giving: manure important resource for crop producers

  Leslie Johnson uses a mixture of candy to demonstrate the importance of collecting a good representative manure sample at the “Saving Money by Using Manure” workshop in West Point, Neb. Photo credit: Midwest Messenger
Manure is like a slow-release fertilizer for our crops, sort of like the gift that keeps on giving. Kristen Sindelar with the Midwest Messenger shares what she learned by attending the "Saving Money by Using Manure on Crops" workshop.

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Trading manure and crop residues, considerations for a fair trade

graphic showing 2 people shaking hands surrounded by a circle of arrows pointing to manure on one side and bales on the other.
With harvest around the corner, you might be considering trading manure for cornstalks or vice versa. In many ways, it’s easier to pay cash for either product, but there are advantages to trading. This article will focus on what kinds of things to consider to be sure any deal made is a fair trade.

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The UNL Animal Manure Management Team Produces Monthly Graphics on Manure Application

example graphic with photo of a cow's nose and says "manure improves crop fertility and is locally available" and provides a link to manure.unl.edu
Every month the UNL Animal Manure Management Team produces graphics on the benefits of manure application and manure best practices and we want your help sharing them. The graphics are for educational purposes and for use by the public. Oftentimes the graphics we create include a link to an article featured on the UNL manure website, manure.unl.edu.

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Manure Use and Composting following Application of Certain Herbicides

Example graphic from a pesticide label with grazing and composting restrictions.
The prices of synthetic fertilizers have increased significantly over the last year leaving growers and even homeowners facing the decision of finding alternative sources of nutrients. One great option is the use of manure or compost from a local farm or from your own operation. The use of manure in gardening can loosen compacted soil, increase carbon in the soil, and reduce surface runoff and leaching all while providing nutrients that your plants need. While this option is great, it is important to be aware of the potential carry over of herbicides in manure from grazing animals.

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