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This article in AJ

  1. Vol. 66 No. 1, p. 85-88
    Received: Apr 26, 1973

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Air Temperature and Vapor Pressure Changes Caused by Sprinkler Irrigation1

  1. R. A. Kohl and
  2. J. L. Wright2



The downwind effect of evaporation from sprinkler spray was studied in the field to determine if air temperature and vapor pressure were changed enough to influence plant growth and water use. Wet-bulb and dry-bulb temperature profiles were measured upwind and at three distances downwind from a sprinkler lateral before and during sprinkling. Wind-speed and direction were also measured. Air temperature generally was reduced less than 1 C, and vapor pressure in the air was increased less than 0.8 mb. This amount of change in the air temperature and humidity is not likely to be sufficient to cause any significant change in plant growth or evaporative loss of water.

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