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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 Diagramshowing 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 Costs

Offset 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