surface irrigation

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SURFACE IRRIGATION. IN MONTANA. MOST SYSTEMS IN PLACE FOR MANY YEARS. SURFACE IRRIGATION TYPES. WILD FLOODING CONTOUR DITCH BORDERS FURROWS. PERMANENT CROPS. CONTOUR DITCH. STEEP SLOPES, LITTLE SMOOTHING. SOMETIMES REPLACED WITH GATED PIPE. BORDER IRRIGATION. - PowerPoint PPT Presentation

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  • SURFACE IRRIGATIONIN MONTANA

  • MOST SYSTEMS IN PLACE FOR MANY YEARS

  • SURFACE IRRIGATION TYPESWILD FLOODINGCONTOUR DITCHBORDERSFURROWS

  • CONTOUR DITCHPERMANENT CROPS STEEP SLOPES, LITTLE SMOOTHINGSOMETIMES REPLACED WITH GATED PIPE

  • BORDER IRRIGATIONALMOST ALWAYS GRADED BORDERSALFALFA, GRAINSMAY BE USED IN SHORT ROTATIONS WITH FURROW CROPS

  • FURROW IRRIGATIONMOSTLY IN THE YELLOWSTONE RIVER BASIN

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

  • PROBLEM AREAS

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

  • LACK OF WATER MEASUREMENT

  • LEADS TO OTHER PROBLEMSOVER IRRIGATION AND EROSION

  • ENCOURAGE USE OF PAM

  • EQIP CONVERSION TO SPRINKLERSLABOR SAVINGS + MANAGEMENT

  • FINALLY, THE BOTTOM LINE:PROFITABLE CONSERVATION