3. IRRIGATION IN MONTANA

4. MOST SYSTEMS IN PLACE FOR MANY YEARS

6. SURFACE IRRIGATION TYPES WILD FLOODING CONTOUR DITCH BORDERS FURROWS

7. CONTOUR DITCH PERMANENT CROPS STEEP SLOPES, LITTLE SMOOTHING SOMETIMES REPLACED WITH GATED PIPE

8. BORDER IRRIGATION ALMOST ALWAYS GRADED BORDERS ALFALFA, GRAINS MAY BE USED IN SHORT ROTATIONS WITH FURROW CROPS

9. FURROW IRRIGATION MOSTLY IN THE YELLOWSTONE RIVER BASIN

10. Gated Pipe Systems Great increase in use since cost share began in late 1980’s.

11. PROBLEM AREAS

12. WATER QUALITY Late season (>July) water quality/volume declines. Leaching component must be applied in the spring. Conversion to center pivots may not be feasible.

13. LACK OF WATER MEASUREMENT

14. LEADS TO OTHER PROBLEMS OVER IRRIGATION AND EROSION

15. ENCOURAGE USE OF PAM

16. CONVERSION TO SPRINKLERS LABOR SAVINGS + MANAGEMENT

17. SPRINKLER APPLICATIONS

18. SIDE ROLL OR WHEEL ROLL

19. Pressure effects distribution

20. SO DOES WIND!!

21. WIND ROSE DATA

23. UNIFORM, LIGHT WINDS Catch Can Evaluations

24. 3 Dimensional Patterns

25. Pattern graphic

26. OLD IMPACT-STYLE PIVOTS

27. LOW PRESSURE PIVOTS

28. LEPA - Bubbler mode 8”-18” above soil, or drag socks

30. OLD and NEW TOOLS

32. FINALLY, THE BOTTOM LINE: PROFITABLE CONSERVATION