Rick Koelsch - Professor of Biological Systems Engineering

Muddy Feedlot Surfaces: What Are My Options?

An undesirable combination of precipitation events and freeze/thaw cycles has contributed to some very muddy feedlot surfaces in the winter and spring of 2019 in Nebraska. Preventative design and management options exist for minimizing the occurrence and extent of muddy open feedlot conditions, but very few ‘fixes’ exist for addressing muddy conditions once they are in place. Additional information on your options follows...

Sharing Animal Agriculture's Sustainability Story

Animal agriculture often endures criticism from neighbors and consumers relative to sustainability. But when it comes to management of carbon and nutrients, animal agriculture has a positive story to share. Many environmental and sustainability organizations promote the importance of a “circular economy” for increasing sustainability. Those engaged with Nebraska agriculture should help our neighbors and consumers recognize agriculture’s long term practice of implementing this circular economy. This article will help introduce agriculture’s circular economy for nitrogen (N), phosphorus (P), carbon (C), and other nutrients and messages you might share with neighbors and consumers about the Nebraska Advantage for sustainability.

Precision Manure Application on Display at Manure Expo

While the North American Manure Expo may not reach bucket level status for your vacation plans, for anyone replacing or upgrading equipment for managing manure, it is the place to be. One emerging theme common at this year’s Manure Expo was “Precision Manure”. This article will share a few observations around my conversations with vendors and manure applicators on “Precision Manure”.

Poultry Litter’s Agronomic and Natural Resource Benefits

Many Nebraska farmers are experienced with using beef feedlot and swine manures as fertility products. Over the next few years, Nebraska crop farmers may have opportunities to consider using broiler poultry litter as a soil amendment and fertilizer. Other regions of the US have a history of using poultry litter in crop production from which we can take away a few lessons.

Manure: Waste or Valuable Agricultural Resource?

Is manure a “Waste” that pollutes our water resources and creates undesirable nuisances for communities? Or, is manure a “Resource” that reduces the demand inorganic fertilizers and improves the health of our soils? A team of university educators and agricultural organizations would like to learn more about the issues most important to you as you make decisions for the use of manure in cropping systems.

Proposed Changes to Nebraska Recommendations for Manure Nitrogen Credit

Managing manure for economic and environmental benefit is based, in part, upon our ability to efficiently recycle manure nitrogen (N) between animals and crops. This article introduces University of Nebraska-Lincoln (UNL) proposed changes in recommendations for crediting manure nitrogen in a crop’s fertility program.

Extending the Manure Application Window: Post Plant Experiences

Extending the window for manure application offers many possible advantages. One can reduce some of the labor and equipment challenges associated with busy spring application windows as well as deliver nutrients to the crop more closely timed to the crop’s nutrient’s needs. Glen Arnold, Extension Specialist at Ohio State University recently met with a Nebraska audience to share field experiences in Ohio to side-dress manure into growing corn.

Can I Irrigate Animal Manures On Growing Crops?

High rainfalls can leave holding ponds or manure storage full and operators looking for irrigation options for applying animal manure during the growing season. This article discusses important considerations for application of open lot holding pond effluent and diluted manures during the growing season without damaging the crop.