Chengchou Han1, Haishun Yang2, Kenneth Hubbard3, Martha Shulski4, Jennifer Rees5, Greg Kruger6, Gary Zoubek7, Patricio Grassini4, Jessica A Torrion8, Derek Heeren3, Kenneth G Cassman9, James Specht10 and Suat Irmak11, (1)Agronomy and Horticulture Department, University of Nebraska - Lincoln, Lincoln, NE (2)Agronomy and Horticulture, University of Nebraska - Lincoln, Lincoln, NE (3)University of Nebraska - Lincoln, Lincoln, NE (4)University of Nebraska-Lincoln, Lincoln, NE (5)University of Nebraska-Lincoln, Clay Center, NE (6)University of Nebraska-Lincoln, North Platte, NE (7)University of Nebraska-Lincoln, York, NE (8)Northwestern Agricultural Research Center, Montana State University, Kalispell, MT (9)Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Oceanside, CA (10)Department of Agrononomy and Horticulture, University of Nebraska - Lincoln, Lincoln, NE (11)Biological Systems Engineering, University of Nebraska - Lincoln, Lincoln, NE
Abstract:
Real-time assessments of crop development, soil water status, and crop water stress can facilitate irrigators to save irrigation water and energy, improve crop water use efficiency, and increase farm profitability. CornSoyWater will be a web-based real-time irrigation decision support tool. It simulates crop phenological stages, crop daily water use and soil water balance using a combination of real time weather data and NOAA 10-day weather forecast. The tool will be able to help irrigators to determine best time for irrigation and estimate the amount of water required to meet different irrigation targets.
During the development phase, this tool will be tested by voluntary Nebraska irrigators. In addition, a field experiment was conducted on university research plots for testing and validating predictions of crop development, crop water use and soil water balance under both full irrigation and deficit irrigation conditions for advancing the performance of CornSoyWater. The tool will be launched in the 2015 growing season and will be available to irrigators to facilitate irrigation decision making. The project is funded by the Water, Energy and Agriculture Initiative – Phase 2 (WEAI), Nebraska Center for Energy Sciences Research.
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