T Measurements for Irrigation of Sweet Corn

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by William S. Braunworth, Jr., Oregon State Univ, Corvallis, OR, USA,
Harry J. Mack, Oregon State Univ, Corvallis, OR, USA,

Document Type: Proceeding Paper

Part of: Irrigation Systems for the 21st Century:

Abstract: Commonly used scheduling methods are based on a water balance approach where evapotranspiration (ET) must be either estimated from climatic data or by soil water depletion measurements. Various soil-water-balance and climate-based, ET-estimating procedures for sweet corn have not been extensively compared and their use as irrigation scheduling guides has not been comparatively assessed. The objectives of the present study were to 1) develop production functions of yield vs. ET or water applied for sweet corn and 2) compare three climate-data-based, ET-estimating equations to soil-water-based ET measurements for irrigation scheduling.

Subject Headings: Soil water | Climates | Crops | Scheduling | Evapotranspiration | Irrigation | Water resources | Water balance |

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