Boll, Jan - Soil and Water Conservation Society

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Sediment Load: Average <strong>and</strong> Median 100% 90% 1998 Mulch Till WW-Barley-Pea Cumulative Percentage of Fields 80% 70% 60% 50% 40% 30% 20% Median = 0.8 Tons/Field Average = 7.1 Tons/Field 10% 0% 0 1 2 3 4 5 6 7 8 9 10 Sediment Delivered to Streams (Tons/Field)
Load reduction efficiency: by field 100% 90% 80% Cumulative Percent Load 70% 60% 50% 40% 30% 20% 10% 0% Grass NT WW-B-P NT WW-P NT WW-B MT WW-B MT WW-B-P MT WW-P CT WW-B CT WW-B-P CT WW-P 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Cumulative Percent of Fields
Page 1 and 2: Evaluation of Conservation Practice
Page 3 and 4: Research & Objectives Our research
Page 5 and 6: Saturated areas
Page 7: Elevation map Slope map
Page 10 and 11: 5 crops: • winter wheat • sprin
Page 12 and 13: Rock Chute Filter Strip Diversion R
Page 14 and 15: Historic Data Points 2006 points
Page 16 and 17: Observed versus Simulated Streamflo
Page 18 and 19: Grass Direct Seed Mulch Till Conven
Page 20 and 21: Gully Plugs Severely eroded spots -
Page 22 and 23: 30 Year WEPP Simulated Sediment Loa
Page 26 and 27: Load reduction efficiency: by area
Page 28 and 29: Data • Operators provided crop/ti
Page 30 and 31: Optimization results Net returns ($
Page 32 and 33: 0% Reduction 10% Reduction 30% Redu

Boll, Jan - Soil and Water Conservation Society

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