Effects of soil covered by hydrophobic Zycosil on single and dual crop coefficient of pepper (Capsicum annuum L.)

Document Type : Research Paper

Author

Assistant professor, Department of Agriculture, Payame Noor University, PO Box 19395-3697 Tehran, IRAN.

Abstract

Prediction of plant water consumption in each growth stage plays an important role in soil and water resources management and proper irrigation scheduling. The aim of this study was to determine the amount of water requirement and crop coefficient of pepper in terms of soil coverage with different amounts of Zycosil. This paper used the Kc procedure of FAO No. 56 (Allen et al. 1998) to obtain single and dual crop coefficients of sweet pepper. The dual crop coefficient approach is more complicated and requires more numerical calculations than the single crop coefficient approach. The single crop coefficient is defined as the ratio of ET from crop to some reference ET as defined by weather data. The dual crop coefficient has two fractions, one for crop transpiration, i.e., the basal crop coefficient (Kcb), and one for soil evaporation (Ke). Basal crop coefficients, Kcb, represent primarily the transpiration component of ET and a small evaporation component from soil that is visibly dry at the surface.

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Main Subjects

References

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Irrigation Sciences and Engineering
Volume 43, Issue 2
July 2020
Pages 63-76

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History

  • Receive Date: 29 December 2017
  • Revise Date: 26 June 2018
  • Accept Date: 30 June 2018
  • Publish Date: 21 June 2020

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