Big Creek Research & Extension Team Update Andrew Sharpley Soil & water quality, watershed mgt. Brian Breaker (USGS) Surface water specialist, trend assessment July 10 th , 2017 -Joint meeting of Kris Brye Soil physics, pedology, sustainability, nutrient leaching Senate Committee on Public Health, Welfare, and Labor Mike Daniels Extension water quality & nutrient mgt. specialist House Committee on Public Health, Welfare, and Labor Ed Ggbur Agricultural statistical design & determination Senate Committee on Agriculture, Forestry, and Economic Development Brian Haggard Ecological engineering, water quality monitoring House Committee on Agriculture, Forestry, and Economic Development Phil Hays (USGS) Karst hydrogeology and groundwater quality Mary Savin Structure & function of microbial communities Karl VanDevender Extension engineer, manure mgt. & planning Adam Willis County Extension Agent - Agriculture Field technicians Equipment construction, soil & water sampling experts
C&H Hog Operation Approach & Tasks � Developed monitoring network at field, farm, & watershed scale to determine impact of farm operations on Big Creek water quality � Evaluate manure management system & nutrient management plan � Farm established in early 2013 � Characterize soil chemical properties on 3 application fields using � Owners voluntarily approached Newton County Extension Office grid soil sampling every 2 years for assistance � Monitor slurry holding pond leakage with inceptor trenches � Capacity for 6,500 hogs; operating at 2,500 pigs � Minimum of 5 years monitoring needed
Downstream of farm Field 5a Ephemeral stream House well & • Storm & weekly sampling of holding pond Field 1 trench base flow for Spring � N, P , sediment, bacteria • Field runoff from 2 Field 12 application fields & 1 control Upstream of farm
Storm flow ISCO autosampler Base flow weekly grab samples
What have we found so far?
Holding pond inceptor trench
150 Trench Median is 4.1 MPN/100 mL 120 90 60 E. coli primary contact 30 season standard is 0 6 298 MPN/100 mL House well 4 Median is 1 MPN/100 mL 2 0 Jan-16 Mar-16 May-16 Jul-16 Sep-16 Nov-16 Jan-17 Mar-17 May-17
0.5 Trench Median is 0.17 mg/L 0.4 0.3 0.2 Nitrate-N drinking 0.1 water standard is 0.0 1.0 10 mg/L House well 0.8 0.6 0.4 0.2 Median is 0.58 mg/L 0.0 Jan-16 Mar-16 May-16 Jul-16 Sep-16 Nov-16 Jan-17 Mar-17 May-17
Mean annual surface runoff loss Total P Total N Site P added P loss N added N loss runoff runoff kg/ha % kg/ha % Field 1 13 0.011 0.1 30 0.023 0.1 Field 5a 113 0.284 0.2 42 0.439 0.6 38 0.046 0.1 Field 12 17 0.020 0.1 Field 5a received mineral fertilizer & poultry litter but no swine slurry
Big Creek monitoring
Initial slurry application 5000 Upstream Storm flow 4000 Base flow 3000 2000 95 MPN/100mL 1000 0 5000 Downstream Storm flow 4000 Base flow 3000 2000 59 MPN/100mL 1000 0 Sep-13 Mar-14 Sep-14 Mar-15 Sep-15 Mar-16 Sep-16 Mar-17
1,000 Greater downstream Storm flow 800 Base flow 600 400 200 0 -200 -400 -600 -800 Greater upstream -1,000 Sep-13 Mar-14 Sep-14 Mar-15 Sep-15 Mar-16 Sep-16 Mar-17
Initial slurry application 1.2 Upstream Storm flow 1.0 Base flow 0.8 0.6 0.10 mg/L 0.4 0.2 0.0 1.2 Downstream Storm flow 1.0 Base flow 0.8 0.6 0.24 mg/L 0.4 0.2 0.0 Sep-13 Mar-14 Sep-14 Mar-15 Sep-15 Mar-16 Sep-16 Mar-17
0.08 Storm flow Greater downstream 0.06 Base flow 0.04 0.02 0.00 -0.02 -0.04 -0.06 Greater upstream -0.08 Sep-13 Mar-14 Sep-14 Mar-15 Sep-15 Mar-16 Sep-16 Mar-17
Beaver Reservoir Watershed Buffalo River Watershed Illinois River Watershed 5 R 2 = 0.68 95% confidence limits 4 Downstream Geometric 0.24 mg/L 3 mean nitrate-N, mg/L 2 Upstream 0.10 mg/L 1 0 0 20 40 60 80 100 Watershed land area as pasture & urban, %
• No build-up of P in surface soil from slurry application • Soil P accumulation in cattle feeding & loafing areas • No evidence of slurry holding pond leakage to date • No consistent water quality trends to date • Continue to provide transparent, unbiased science for landowner & State to make decisions
http://www.bigcreekresearch.org
Recommend
More recommend
