• Basics of Evaporation and Evapotranspiration

      Brown, Paul (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2014-01)
      Introduction: Local information on evapotranspiration (ET) is now readily available from on-site weather stations and/or public weather networks to assist turfgrass professionals with irrigation management decisions. Proper utilization of ET information can provide accurate estimates of daily water use and thus can assist irrigation managers with the all important decisions of when to apply water and how much water to apply. The concept of ET can be confusing and often is presented in a highly technical manner. The objective of this and subsequent bulletins in the Turf Irrigation Management Series is to simplify the subject of ET and thereby increase the effective utilization of ET in irrigation management. This bulletin provides some basic background on the related subjects of evaporation and evapotranspiration.
    • Basics of Evaporation and Evapotranspiration

      Brown, Paul; Soil, Water & Enviromental Science (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2000-12)
      The objective of this and subsequent bulletins in the Turf Irrigation Management Series is to simplify the subject of ET and thereby increase the effective utilization of ET in irrigation management. This bulletin provides some basic background on the related subjects of evaporation and evapotranspiration.
    • Como Medir el Flujo de Agua en los Canales de Riego a Cielo Abierto y en las Tuberias de Computeras (Spanish)

      Martin, Edward; Agricultural & Biosystems Engineering (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2010-12)
      Measuring water is a critical part of any irrigation management system. This informational bulletin gives some simplistic methods of measuring flow rate in an open ditch and in gated pipe. Using the float method, dye tracers and velocity head meters, growers can get a quick estimate of the flow in their farm ditch. From this, an estimate of water applied or a set time can be determined. The bulletin also explains how a propeller meter works for gated pipe. Gated pipe is widely used through the state and in the West.
    • Laboratories Conducting Soil, Plant, Feed, or Water Testing

      Schalau, Jeff W.; Univ Arizona, Coll Agr & Life Sci (College of Agriculture, University of Arizona (Tucson, AZ), 2016-09)
      This publication lists laboratories that provide soil, plant, feed, and water testing within the state of Arizona. Revised September 2016.
    • Laboratories Conducting Soil, Plant, Feed, or Water Testing

      Schalau, Jeff; Plant Sciences, School of (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2010-05)
      This sheet contains the mailing information for the labs that conduct soil, plant, feed or water testing.
    • Measuring Water Flow in Surface Irrigation Ditches and Gated Pipe

      Martin, Edward; Agricultural & Biosystems Engineering (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006-08)
      Measuring water is a critical part of any irrigation management system. This informational bulletin gives some simplistic methods of measuring flow rate in an open ditch and in gated pipe. Using the float method, dye tracers and velocity head meters, growers can get a quick estimate of the flow in their farm ditch. From this, an estimate of water applied or a set time can be determined. The bulletin also explains how a propeller meter works for gated pipe. Gated pipe is widely used through the state and in the West.
    • Water Management for Defoliation

      Silvertooth, Jeffrey C. (College of Agriculture, University of Arizona (Tucson, AZ), 2015-06)
      There are several factors which are important to consider in managing defoliation. Factors such as plant-water relations, Nitrogen (N) fertility status, the extent of honeydew deposits on the leaves from insects such as the sweet potato whitefly or aphids, and weather conditions following the defoliant application are all important in terms of the final defoliation results.
    • Water Management for Defoliation

      Silvertooth, J.C.; Plant Sciences, School of; Soil, Water & Environmental Science (College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001-02)