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Unpublished Paper
Effects of Grazing Management on Pasture Production and Phosphorus Content of Forage (A Progress Report)
Beef Research Report, 2003
  • Mathew M. Haan, Iowa State University
  • James R. Russell, Iowa State University
  • Wendy J. Powers, Iowa State University
  • Steven K. Mickelson, Iowa State University
  • Syed I. Ahmed, Iowa State University
  • John L. Kovar, United States Department of Agriculture
  • Richard C. Schultz, Iowa State University
Document Type
Article
Extension Number
ASL R1835
Publication Date
2003
Abstract

In spring 2001, pastures were grazed at the ISU Rhodes Research and Demonstration Farm to determine the effects of grazing management on pasture productivity and phosphorus (P) content of forage. Treatments included an ungrazed control, summer hay harvest with winter stockpiled grazing, continuous stocking to a residual height of 2 inches, rotational stocking to a residual height of 2 inches, and rotational stocking to a residual height of 4 inches. Forage production was greatest in June and July, decreased in August, and had a slight rebound in September and October before going dormant in November. Phosphorus concentration of forage was at a maximum in May at 0.27% and decreased to 0.11% in November. Ungrazed paddocks had no net uptake of P during the grazing season, while forage harvest stimulated P uptake. Forage growth and P uptake in buffers were unaffected by pasture management strategies that occurred upslope.

Copyright Owner
Iowa State University
Language
en
Date Available
April 22, 2013
File Format
application/pdf
Citation Information
Mathew M. Haan, James R. Russell, Wendy J. Powers, Steven K. Mickelson, et al.. "Effects of Grazing Management on Pasture Production and Phosphorus Content of Forage (A Progress Report)" (2003)
Available at: http://works.bepress.com/richard_schultz/2/