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PAM Slide Set - 1996
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This slide set represents a summary of the research of Bob Sojka & Rick Lentz on polyacrylamide (PAM) which was presented at the PAM conference on Managing Irrigation-Induced Erosion with PAM on May 6-8, 1996. Slide sets are no longer available. The following are thumbnails of all the slides in the set together with text from each slide. To view a larger picture of each slide, click on the thumbnail.

1 Title Slide USDA-ARS1. Fighting Irrigation-Induced Erosion with Polyacrylamide (PAM)

A Summary of Research Findings and Application Tips from

USDA Agricultural Research Service

Northwest Irrigation and Soils Research Laboratory Kimberly, Idaho

R.D. Lentz and R.E. Sojka


2. Extent of Irrigated Agriculture2. Extent of Irrigated Agriculture
3. Importance of Irrigated Agriculture3.Importance of Irrigated Agriculture
4. Importance of Irrigated Agriculture4. Importance of Irrigated Agriculture
5. arial photo of white soils5. Aerial photo of "white soils"
6. Aerial photo of Sediment in river6. Aerial photo of Sediment buildup in Snake River return flow
7. Table of % Maximum Yield in White Soils7. % Maximum Yield in White Soil Areas
8. Figure of Furrow Erosion8. Furrow Erosion Diagram showing Detachment, Transport, and Deposition of Sediment
9. Erosion Control Practices9. Erosion Control Practice and Soil Loss Control (%)
10. Diagram of PAM molecule10. Diagram of PAM molecule
11. Anionic PAMs are Off the Shelf . . .11. Anionic PAMs are "Off the Shelf " Industrial Flocculants. Used Extensively for:
12. Photo of PAM in hands12. Photo of PAM crystals
13. PAM binding to the soil surface13. PAM Treated Furrow Irrigation. Diagram of PAM binding to soil surface.
14. What Does PAM Do?14. What Does PAM Do?
15. Aggregate Stabilization Demo15. Photo showing effect of PAM on aggregate stabilization
16. PAM flocculation of suspended soil particles16. Photo showing PAM flocculation of suspended soil particles
17. Control Furrow17. Photo of control furrow showing cloudy water and erosion
18. PAM treated furrow18. Photo of PAM treated furrow showing clear water and no erosion
19. PAM vs Control runoff samples19. Photo of PAM vs Control runoff samples in Imhoff cones
20. Initial 10 ppm PAM treatment20. Initial 10 ppm PAM Treatment
21. Graph Sediment Loss vs PAM treatments21. Graph of Sediment Loss vs PAM Treatments
22. Graph of Soil Loss vs Time22. Graph of Soil Loss vs Time during an irrigation
23. PAMs Potency23. Graph showing PAMs potency on different slopes
24. PAM Effects on Infiltration24. PAM Effects on Infiltration
25. Photo of Lateral Wetting25. Photo showing PAM effect on lateral wetting
26. Infiltration Increase graph26. Graph of Infiltration Increase with PAM at 5 and 10 ppm
27. Graph of mean runoff losses27. Graph showing mean runoff losses
28. In-stream PAM concentration28. Graph of in-stream PAM concentrations for a fresh furrow
29. PAM application safety29. PAM Application Safety (<10ppm)
30. Persistence in Soil30. Persistence in Soil
31. Persistence in Irrigation Streams31. Persistence in Irrigation Streams
32. NRCS PAM Interim Standard32. NRCS PAM Interim Standard
33. PAM costs33. PAM CostsOffset by:
34. Granular PAM-Ditch Applicator Cost34. Granular PAM-Ditch Applicator Cost
35. PAM Application Tips - Mixing35. PAM Application Tips - Mixing
36. PAM Application Tips - Other36. PAM Application Tips - Other
37. PAM Furrow Application Tips37. PAM Furrow Application Tips
38. Other PAM Research Thrusts38. Other PAM Research Thrusts
39. Furrow on PAM39. This is your irrigated furrow. . . This is your furrow on PAM!

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Last Updated on April 7, 1997 by Jim Foerster