Rick Koelsch - Livestock Environmental Engineer

Rick Koelsch

faculty
Work Chase Hall (CHA) 216
Lincoln NE 68583-0726
US
Work 402-472-3935 On campus, dial 2-3935

Faculty Bio

3 Resources on How Animal Manure Can Benefit Your Soils

June 4, 2019
Animal manure can be a valuable soil nutrient. Three stories at Water.unl.edu explore how manure improves soil fertility and productivity, how poultry manure can be managed in crop production, and how composted beef manure can be added to sugar beet production.

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Flooded farmstead and grain bins
Flood-soaked grain is almost certain to be contaminated and present some unique challenges for disposal. (Photo by Lee Valley, Inc.)

Disposing of Flood-Soaked Grains and Forages

March 28, 2019
Regulatory considerations and recommended actions for managing flood-soaked grains and forages no longer usable for food or feed.

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Figure 1. Graph showing average (1998-2009) cumulative NO3-N loss in response to interaction effects of N treatments

Poultry Manure Reduces Nitrate Loss to Water in Iowa Study

March 6, 2019
Iowa State University researchers concluded from a long-term field study that poultry manure, when applied at a rate to meet crop nitrogen (N) requirements, can reduce nitrate loss and achieve equal or better yields in corn-soybean production systems.

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How do I accurately credit nitrogen from manure?

Estimating Nitrogen Credit from Manure

September 5, 2018
Nitrogen in manure requires some simple planning to insure it's given proper credit for offsetting commercial fertilizer inputs. This Water.unl.edu article offers key information for calculating N credit.

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Odor plumes from land application of manure
Odor plumes from land application of manure

Timing Manure Application to Avoid Neighbor Nuisances

August 14, 2018
Roughly half of all neighbor complaints of livestock odors originate from land application of manure. This article outlines the weather conditions to consider when planning a manure application.

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Irrigation in corn near a cattle feedlot with cattle
Irrigating diluted animal manures on growing crops can work if you ask the right questions. (Photo by Larry Howard)

Can I Irrigate Animal Manures On Growing Crops?

June 27, 2018
Recent heavy rains have many feedlot holding ponds full and operators looking for irrigation options to apply animal manure during the growing season. Here are some considerations for applying diluted animal manures without damaging the crop.

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Manure spreader

Manure’s Impact on Yield, Nitrogen, and Carbon

May 3, 2018
If manure is applied at rates equal to or less than the nitrogen (N) requirement of a crop, can manure produce environmental benefits over commercial fertilizer? This article summarizes the "Take Home Messages" from a paper summarizing 141 studies relative to the question.

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Pie chart showing the value of manure

What is the Economic Value of Manure

December 6, 2017
Manure has value. That value may result from improvements in soil quality, increases in yield, and replacement of commercial nutrient required for crop production. This article focuses on the economic benefits of manure.

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