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

livestock operation manure pile

Palmer Amaranth Seeds in Manure - What Can You Do?

October 29, 2020
There are several ways seeds of Palmer amaranth can be introduced into your fields. Manure is one of them. This article provides some valuable answers on reducing Palmer amaranth seed in feed, reducing Palmer amaranth seed in manure and field application of contaminated manure.

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nutrient management diagram

What Are the Barriers and Benefits of Manure Use in Cropping Systems? (part 1 of 2)

August 17, 2020
Understanding the ag community's perceptions of manure's benefits and barriers is important to recycling manure nutrients efficiently. A recent survey is helping us understand the next steps to encouraging manure's use as a valuable asset.

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dairy cattle

Emergency Use of Milk as a Fertilizer Q&A

April 23, 2020
Difficult challenges in the dairy industry such as those resulting from COVID-19 result in times when a market is not available for milk. When those occur, using milk as a crop fertilizer may provide a short-term option for gaining some value from milk.

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Precision manure applicator

Precision Manure Application on Display at Manure Expo

September 27, 2019
Extension Engineer Rick Koelsch shares highlights from the 2019 Manure Expo. Precision technology paired with well-designed application equipment was key to achieving uniformity in manure fertilizer applications.

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manure

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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