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This article in AJ

  1. Vol. 55 No. 5, p. 461-464
    Received: Feb 7, 1963

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A Chlorophyll Index to Measure Turfgrass Response1

  1. John H. Madison and
  2. Aage H. Andersen2



The chlorophyll content is expressed as mg. per dm.2 of land and this is termed a chlorophyll index (CI). The CI correlates with visual turf ratings, responds to fertilizer, but when nitrogen levels are adequate it is little responsive to mowing, irrigation, or shading practices.

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