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North Platte Brad Carlson, Range TSP 308-532-2360 ext. 3 brad.carlson@ne.usda.gov

North Platte Brad Carlson, Range TSP 308-532-2360 ext. 3 brad.carlson@ne.usda.gov. By: Richard Bolli LLNRD Brad Carlson TPNRD Matt Gasseling LLNRD Cherette Mastny LLNRD. TSP’s Partners in Conservation. Envirothon.

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North Platte Brad Carlson, Range TSP 308-532-2360 ext. 3 brad.carlson@ne.usda.gov

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  1. North Platte Brad Carlson, Range TSP 308-532-2360 ext. 3brad.carlson@ne.usda.gov

  2. By: Richard Bolli LLNRD Brad Carlson TPNRD Matt Gasseling LLNRD Cherette Mastny LLNRD TSP’s Partners in Conservation Envirothon

  3. Within Nebraska, rangelands account for 48% or 23.9 million acres of the state’s land area. Rangeland is a type of land that supports different, uncultivated vegetation types that can provide the necessities of life for both native and domestic herbivores in a sustainable fashion.

  4. Perennial plants are plants that can live up to three years before completely regrowing, while annual plants complete their life cycle in one growing season.Range Health

  5. OtherClassifications • Grass, Grass-likes, Forbs, or Shrubs • Native or introduced • Tall, Mid, or Short Grass • Rhizomes, Seeds, or Stolens • Palatability • Increasers, Decreasers, or Invaders • Noxious or Poisonous

  6. Warm/Cool Season Plants • Warm season ideal growth is when temperatures are between 90 and 95 degrees. • Examples: Big Bluestem, Little Bluestem, Prairie Sandreed • Cool season ideal growth is when temperatures are between 65 and 75 degrees. • Examples: Needle and Thread, Prairie Junegrass

  7. Tools • Ring • Clippers • Scales

  8. Range Condition • Range condition estimates how closely the existing vegetation resembles climax vegetation expressed as a percent • Excellent 100%-76% • Good 75%-51% • Fair 50%-26% • Poor 25%-0%

  9. Stocking Rates • Example: • 100 AUM’s (animal unit month) available • 100 AUM’s/1.2 AU (animal unit) = 83 AU’s for one month • AUM = Is the amount of forage required to sustain one animal unit for one month. • AU = Defines forage intake on the basis of a standard animal. Every 100 lbs. of animal = 0.1 So a 1000 lbs. animal is equivalent to 1.0 AU or a 1200 lbs. animal is equivalent to 1.2 and so on.

  10. Stocking Rates • 320 AUM’s available, so how long can this sustain 120 c/c pairs weighting 1400 lbs. collectively? • 1400 lbs. = 1.4 AU so 120 c/c pairs x 1.4 = 168 AU’s needed. • 320 AUM’s available / 168 AU’s needed = 1.9 months of grazing or 58 days of grazing.

  11. Stocking Rates • 1400 lbs. => 80 c/c pair on 640 ac. for 45 days, so how much did they use, was it too much and how much per acre did they use?? • 80 c/c x 1.4 = 112 AUM’s used per month • 45 days / 30.5 days = 1.5 month • 1.5 months x 112 AUM’s used per month = 168 AUM’s used >Used not grazed, takes in trampling and insects. • So they used 168 AUM’s and we divide 168 AUM’s / 640 ac. to find out how much was used per acre and that is 168/640 = 0.26 AUM’s per ac. used. Did they use too much, no.

  12. Grazing Strategies

  13. Cedar Tree Impact

  14. Determining Range Sites • Climate • Soils • Topography / Slope • Vegetation / Production • Precipitation • Ecological Site Descriptions tell all.

  15. Range Sites Limy Upland Silty

  16. Thin Loess/Loess Breaks

  17. Sands

  18. Choppy Sands Sandy

  19. QUESTIONS???

  20. Acknowledgements • North American Range Plants, J.Stubbendieck, S. Hatch, C. Butterfield • A Guide For Planning and Analyzing a Year Round Forage Program, S. Waller, L. Moser, B. Anderson

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