DERIVED CROP COEFFICIENTS FOR WINTER WHEAT USING DIFFERENT REFERENCE EVPOTRANSPIRATION ESTIMATES METHODS

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

ER RAKI S.; CHEHBOUNI A.; EZZAHAR J.; KHABBA S.; LAKHAL E.K.; DUCHEMIN B.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST) Year:2011 | Volume:13 | Issue:2 Page(s): 209-221

Download Full-Text

Persian Verion

View:

1,000

Download:

214

Cites:

Information Journal Paper

Title

DERIVED CROP COEFFICIENTS FOR WINTER WHEAT USING DIFFERENT REFERENCE EVPOTRANSPIRATION ESTIMATES METHODS

Author(s)

Keywords

CROP WATER REQUIREMENTQ3

EDDY COVARIANCEQ3

EMPIRICAL METHODQ3

SEMI-ARID ENVIRONMENTQ3

Abstract

This paper reports the results of using three EMPIRICAL METHODs (Makkink, Priestley- Taylor and Hargreaves) for estimating the reference evapotranspiration (ET0) in the semi-arid region of Tensift Al Haouz, Marrakech (center of Morocco). The Penman- Monteith equation, standardized by the Food and Agriculture Organization (FAO-PM), is used to evaluate the three EMPIRICAL METHODs. The obtained ET0 data were used to estimate CROP WATER REQUIREMENT (ET) of winter wheat using the crop coefficient (Kc) approach and results were compared with ET measured by the EDDY COVARIANCE technique. The result showed that using the original empirical coefficients a, a and Cm in Hargreaves, Priestley-Taylor and Makkink equations, respectively, the Hargreaves method agreed fairly well with FAO-PM method at the test site. Conversely, the Priestley- Taylor and Makkink methods underestimate the ET by about 20 and 18 %. After adjustment of the original values of two parameters a and Cm coefficients in Priestley- Taylor and Makkink equations, the underestimation of ET was reduced to 9% and 4% for the Priestley Taylor and Makkink methods, respectively, which led to an improvement of 55% and 76% of the obtained values compared with the original values.

Cites

No record.

References

No record.

Cite

APA: Copy

ER RAKI, S., CHEHBOUNI, A., EZZAHAR, J., KHABBA, S., LAKHAL, E.K., & DUCHEMIN, B.. (2011). DERIVED CROP COEFFICIENTS FOR WINTER WHEAT USING DIFFERENT REFERENCE EVPOTRANSPIRATION ESTIMATES METHODS. JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), 13(2), 209-221. SID. https://sid.ir/paper/62462/en

Vancouver: Copy

ER RAKI S., CHEHBOUNI A., EZZAHAR J., KHABBA S., LAKHAL E.K., DUCHEMIN B.. DERIVED CROP COEFFICIENTS FOR WINTER WHEAT USING DIFFERENT REFERENCE EVPOTRANSPIRATION ESTIMATES METHODS. JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST)[Internet]. 2011;13(2):209-221. Available from: https://sid.ir/paper/62462/en

IEEE: Copy

S. ER RAKI, A. CHEHBOUNI, J. EZZAHAR, S. KHABBA, E.K. LAKHAL, and B. DUCHEMIN, “DERIVED CROP COEFFICIENTS FOR WINTER WHEAT USING DIFFERENT REFERENCE EVPOTRANSPIRATION ESTIMATES METHODS,” JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), vol. 13, no. 2, pp. 209–221, 2011, [Online]. Available: https://sid.ir/paper/62462/en

Related Journal Papers