Content tagged "nitrogen"

Poultry Mortality Freezer Units: Better BMP, Better Biosecurity, Better Bottom Line.

Why Tackle Mortality Management?  It’s Ripe for Revolution.The poultry industry has enjoyed a long run of technological and scientific advancements that have...

Nitrogen and Phosphorus Cycling Efficiency in US Food Supply Chains – A National Mass-Balance Approach

Animal Manure Management Updated: May 15, 2017

Assessing and improving the sustainability of livestock production systems is essential to secure future food production. Crop-livestock production systems...

Fertilizer Value of Nitrogen Captured using Ammonia Scrubbers

Animal Manure Management Updated: May 10, 2017

Over half of the nitrogen (N) excreted from broiler chickens is lost to the atmosphere as ammonia (NH3) before the manure is removed from the barns,...

Nutrient Cycling in Horse Pastures

Animal Manure Management Updated: May 05, 2017

This presentation will review the existing multi-species literature on nutrient cycling and how it is affected by the horse’s diet and rotational...

The Value of Cover Crops in Dairy Production Systems

Animal Manure Management Updated: May 04, 2017

The purpose of this research was to identify trade-offs among soil erosion, soil health, and crop production when using cover crops with manure...

Nutrient Leaching Under Manure Staging and Sludge-Drying Areas

Animal Manure Management Updated: April 10, 2017

Even well managed lagoons need to have sludge removed periodically. Hauling of sludge is expensive and time consuming. Drying of the sludge before hauling...

Cultivation of Duckweed on Anaerobically Digested Dairy Manure for Nitrogen and Phosphorus Removal

Animal Manure Management Updated: March 21, 2017

The purpose of this research included identifying the optimum cultivation conditions of five different strains of duckweed while evaluating the nutrient...

BFNMP$: A Tool for Estimating Feedlot Manure Economics

Animal Manure Management Updated: October 09, 2015

Waste to Worth home | More proceedings....The Beef Feed Nutrient Management Planning Economics (BFNMP$) computer program can assist producers in...

How much of the nitrogen contained in dairy ration components is partitioned into milk, manure, crops and environmental N loss?

Animal Manure Management Updated: May 18, 2015

Of the total nitrogen (N) consumed by dairy cows on confinement farms (cows fed in barns), a general range of 20% to 35% is secreted in milk and the...

Overwinter transformation and fate of fall-applied manure nitrogen

Animal Manure Management Updated: May 15, 2015

There is growing evidence that soil nutrient cycling is sustained during the non-growing season in the northern regions of Canada. However, the extent of the...

Effect of Wood Biochar Amendment to Sand on Leachate Water Quality with Repeated Dairy Manure Application: A Soil Column Study

Animal Manure Management Updated: May 15, 2015

Agricultural operations can pose a threat to the quality of nearby water sources, particularly from nitrogen and phosphorus losses following land application...

Nitrous Oxide Emissions in Snow-covered Agricultural Soils – manure-induced fluxes

Animal Manure Management Updated: March 18, 2015

It is now accepted that soil nitrous oxide (N2O) emissions occur under freezing conditions (Sommerfeld et al., 1993; Pelster et al., 2012), and that...

Nutrient Recovery Technologies—A Primer on Available and Emerging Nitrogen, Phosphorus, and Salt Recovery Approaches, their Performance and Cost

Animal Manure Management Updated: March 17, 2015

This presentation highlights existing and emerging recovery technologies that can be combined with energy recovery from dairy manure. A variety of...

Analysis of total Carbon, Nitrogen, and Phosphorus Contents in Soil Cores Over 10+ Years from Horicon Marsh in Dodge County, Wisconsin

Animal Manure Management Updated: March 13, 2015

The purpose of this project was to evaluate changes in carbon (C), nitrogen (N), and phosphorus (P) in samples from identical locations taken ten years apart...

Minnesota Watershed Nitrogen Reduction Planning Tool

Animal Manure Management Updated: January 05, 2015

Using the nitrogen reduction planning model involves three steps.  The first step is to select a watershed, enter hypothetical adoption rates for each BMP,...

Managing Dairy Nutrients for Stewardship: Washington State Science Symposium- May 2, 2014

Animal Manure Management Updated: May 13, 2014

The Science Symposium was focused on the principals and science supporting dairy nutrient management planning in Washington State. Speakers were from UC...

Combination of Borax and Quebracho Condensed Tannins Treatment to Reduce Hydrogen Sulfide, Ammonia and Greenhouse Gas Emissions from Stored Swine Manure

Animal Manure Management Updated: November 18, 2013

Waste to Worth home | More proceedings....Livestock producers are acutely aware for the need to reduce gaseous emissions from stored livestock waste and have...

The Arkansas Discovery Farm Program: Connecting Science to the Farm

Animal Manure Management Updated: November 13, 2013

Waste to Worth home | More proceedings....Agriculture in Arkansas is under increasing pressure to manage nutrients and sediment in an environmentally...

What We Feed Dairy Cows Impacts Manure Chemistry and the Environment

Animal Manure Management Updated: November 13, 2013

Waste to Worth home | More proceedings....During the last part of the 20th century, animal manure management became an environmental concern. In response to...

Influence of Swine Manure Application Method on Concentrations of Methanogens and Denitrifiers in Agricultural Soils

Animal Manure Management Updated: November 06, 2013

Waste to Worth home | More proceedings....Soil microbial communities have been proposed as indicators of soil quality due to their importance as drivers of...

Environmental Protection Agency (EPA) Perspective on Nutrient Pollution

Animal Manure Management Updated: November 06, 2013

Waste to Worth home | More proceedings....Provide EPA’s perspective on nutrient pollution and encourage an open dialogue to help address this problem which...

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.