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United States Department of Agriculture

Agricultural Research Service

Research Project: Efficient Management and Use of Animal Manure to Protect Human Health and Environmental Quality

Location: Food Animal Environmental Systems Research Unit

Title: Soil nutrient dynamics in small beef cattle backgrounding feedlot on karst environment

Authors
item Netthisinghe, Annesly -
item Gilfillen, Rebecca -
item Cook, Kimberly
item Sistani, Karamat

Submitted to: American Society of Agronomy Branch Meeting
Publication Type: Abstract Only
Publication Acceptance Date: February 4, 2013
Publication Date: February 4, 2013
Citation: Netthisinghe, A., Gilfillen, R., Cook, K.L., Sistani, K.R. 2013. Soil nutrient dynamics in small beef cattle backgrounding feedlot on karst environment. American Society of Agronomy Branch Meeting. abstract.

Technical Abstract: Beef cattle backgrounding feedlot systems that grow out weaned calves for feedlot finishing can become potential diffuse sources of manure derived soil nutrients. Better understanding of these nutrient concentrations and their distribution will aid in development of effective nutrient management guidelines for sustainable beef cattle production. This research investigated soil pH , soil organic matter (SOM), soil test P (STP), ammonium N (NH4-N), and 1nitrate N (NO3-N) across a small beef cattle backgrounding feedlot on a karst landscape. Initial results indicated that all contaminants were highly concentrated in the feeder are (FD) and in the nearby grazing area (GR). Feeder area soils had 8.2 pH, 5.9% SOM, 2002 mg kg-1 STP, 99.7 mg kg-1 NH4-N, and 18.3 mg kg-1NO3-N. The nutrient concentrations were lower in other feedlot areas. These results along with the levels after removal of lose manure pack in the FD area, and one year after abandoning the site will be presented.

Last Modified: 10/22/2014
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