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Rick Koelsch - Livestock Environmental Engineer

dairy cattle

April 23, 2020

Emergency Use of Milk as a Fertilizer Q&A

By Rick Koelsch - Livestock Environmental Engineer

Precision manure applicator

September 27, 2019

Precision Manure Application on Display at Manure Expo

By Rick Koelsch - Livestock Environmental Engineer

Flooded farmstead and grain bins

March 28, 2019

Disposing of Flood-Soaked Grains and Forages

By Amy Millmier Schmidt - Livestock Bioenvironmental Engineer, Rick Koelsch - Livestock Environmental Engineer

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

March 6, 2019

Poultry Manure Reduces Nitrate Loss to Water in Iowa Study

By Rick Koelsch - Livestock Environmental Engineer

How do I accurately credit nitrogen from manure?

September 5, 2018

Estimating Nitrogen Credit from Manure

By Rick Koelsch - Livestock Environmental Engineer

Odor plumes from land application of manure

August 14, 2018

Timing Manure Application to Avoid Neighbor Nuisances

By Rick Koelsch - Livestock Environmental Engineer

Irrigation in corn near a cattle feedlot with cattle

June 27, 2018

Can I Irrigate Animal Manures On Growing Crops?

By Rick Koelsch - Livestock Environmental Engineer

Manure spreader

May 3, 2018

Manure’s Impact on Yield, Nitrogen, and Carbon

By Rick Koelsch - Livestock Environmental Engineer

Pie chart showing the value of manure

December 6, 2017

What is the Economic Value of Manure

By Rick Koelsch - Livestock Environmental Engineer

Ephermeral gully in a corn field.

August 3, 2017

Using Manure as an Aid in Reducing Erosion and Runoff

By Rick Koelsch - Livestock Environmental Engineer

Manure being injected in wheat residue

July 18, 2017

Is Manure a Fertility Option for Wheat?

By Rick Koelsch - Livestock Environmental Engineer

Illustrating improved soil aggregates from manure applications.

July 6, 2017

How Manure Impacts Soil Aggregation

By Rick Koelsch - Livestock Environmental Engineer

Value of manure

March 6, 2017

Finding Win-Wins for Manure: Maximizing Soil Quality Benefits

By Rick Koelsch - Livestock Environmental Engineer, Charles Shapiro - Extension Soil Scientist—Crop Nutrition

Pie charts showing two manure fertility scenarios

February 27, 2017

Finding Win-Win Opportunities for Manure

By Rick Koelsch - Livestock Environmental Engineer, Charles Shapiro - Extension Soil Scientist—Crop Nutrition

Sample page from the Nebraska Extension Nutrient Management Calendar

January 10, 2017

2017 Nutrient Management Record Keeping Calendars

By Rick Koelsch - Livestock Environmental Engineer