Evaluating Effects of Poultry Waste Application on Phosphorus Loads to Lake Tenkiller

Abstract

Lake Tenkiller located in Oklahoma, USA is a large midcontinent reservoir in a eutrophic state due to excess phosphorus (P) loads. Poultry waste application within the Illinois River Watershed in northeast Oklahoma and northwest Arkansas has been identified as a major contributor to overall P loads within Lake Tenkiller. In this study, Groundwater Loading Effects of Agricultural Management Systems (GLEAMS) was applied to evaluate the effect of poultry waste application on P loads to Lake Tenkiller. Historical P loads to Lake Tenkiller during 1951-2000 have increased from approximately 166,000 kg/year to more than 295,000 kg/year with the Illinois River at Tahlequah subwatershed increasing from 68% to 78% of total P loads over that period. Increased poultry waste application based on poultry growth rates could increase P load to Lake Tenkiller from 311,000 kg/year to more than 528,000 kg/year. Cessation of poultry waste application and addition of buffers along streams could reduce P loads to approximately 92,000 kg/year for cessation of poultry waste application alone and about 89,000 kg/year for cessation of poultry waste application with buffers. One possible strategy to reduce P load to Lake Tenkiller is to cease applying poultry waste application, especially in the portion of the Illinois River above the Tahlequah USGS gage station. OPEN ACCESSSustainability 2015, 7 10116

Analysis of the differences in green farming behavior of operating agents in grassland pastoral areas

“…Green farming refers to the behavior of individuals to actively reduce the negative impact of their farming decisions on the ecology (Stern, 2000), which is one of the primary measures to realize the sustainable development of the environment, society, and economy in grassland pastoral areas (Ke et al, 2019). Current research on green farming behavior and its influencing factors mainly focuses on livestock and poultry farming behavior in agricultural areas (Krishna et al, 2008;Guang et al, 2012;Jeon et al, 2015;Li et al, 2016;Pan, 2016;Hua et al, 2019;Xue et al, 2019;Li et al, 2020). There are few pieces of research on green farming behavior in grassland pasture areas.…”

Efficacy of three heat-stable microbial phytases on growth performance and bone development and strength of broilers fed diets deficient in available phosphorus

“…P is also an important cause of eutrophication, often increasing the amount of plant and algae growth in lakes and reservoirs (Yan et al 2004;Jeon et al 2015). The amount of dietary P and the efficiency of its utilization in the chick's gut determine the amount of P in the excreta.…”

Optimization of Biomethane Production via Fermentation of Chicken Manure Using Marine Sediment: A Modeling Approach Using Response Surface Methodology

“…However, the annual amounts produced exceed the amounts required for the fertilizers needed for agricultural land in many countries [3]. Thus, it is imperative to manage CM properly, lest it cause serious environmental problems, including but not limited to foul smell, pest problems, eutrophication of surface water with a huge amount of nutrients [4], contamination of groundwater with pathogens [5] and heavy metals, and increasing global warming [6].…”