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Land, Air, and Water Resources on Sustainable Agricultural Development in Egypt

  • Atef GhandourEmail author
Chapter
Part of the The Handbook of Environmental Chemistry book series (HEC, volume 77)

Abstract

The experiments were carried out at Moshtohor, Kalubia governorate (latitude, 30° 21′N; longitude, 31° 14′E; and elevation, 14 m), during 2015/2016 growing seasons to test model application of wheat under Egyptian conditions. A computer application program has been developed as Consumptive Use Program plus (CUP plus) as it is an application that can estimate crop evapotranspiration (ETc) and evapotranspiration of applied water (ETaw). The program uses daily and monthly measured weather data to estimate daily soil water balances for surfaces that account for evapotranspiration losses and water contributions from rainfall, seepage, and irrigation. Soil water-holding characteristics, effective rooting depths, and irrigation frequency were measured with rainfall and ETc data to calculate a daily water balance and determine rainfall and ETaw, which is equal to the seasonal cumulative ETc minus the effective rainfall. The main objective of this paper research is testing a mode for determining reference evapotranspiration (ETo), crop coefficient (Kc) values, crop evapotranspiration (ETc), and evapotranspiration of applied water (ETaw), which provides an estimate of the net irrigation water diversion needed to produce a crop. The obtained results show that ETo arrives to the maximum in May by 188.19 mm/month, but ETaw arrives at the maximum in April by 110.71 mm/month. The application outputs and includes a wide range of tables and charts that are useful for irrigation planning and decision-making.

Keywords

Climate data Crop coefficient Evapotranspiration Program Water balance 

Notes

Acknowledgments

This research was made possible through grants from the STDF, Ministry of Scientific Research (Project No. 3864), New Approach for Measuring Crop Evapotranspiration and Updating Crop Coefficients in Egypt, and also the help and advice received from R. L. Snyder LAWR, UC Davis, CA, USA, and Morteza N. Orang, DWR, Sacramento, CA.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.On-Farm Irrigation and Drainage DepartmentAgriculture Engineering Research Institute (AEnRI), Agriculture Research Center (ARC)CairoEgypt

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