Cover Image

Irrigated silage maize yield and water productivity response to deficit irrigation in an Arid region

Simulation models have proven to be useful. The AquaCrop model, which has been expanded by FAO, simulates crop yield based on the applied water under conditions of full and deficit irrigation levels. In this study, the AquaCrop model’s performance was tested using data for silage maize (Zea mays L.)...

Full description

Saved in:
Bibliographic Details
Main Authors: Salemi, Hamidreza, Mohd Soom, Mohd Amin, Mousavi, Sayed-Farhad, Ganji, Arman, Lee, Teang Shui, Yusoff, Mohd Kamil, Verdinejad, Vahid Reza
Format: Article
Language:English
Published: 2011
Online Access:http://psasir.upm.edu.my/id/eprint/23022/1/Irrigated%20silage%20maize%20yield%20and%20water%20productivity%20response%20to%20deficit%20irrigation%20in%20an%20Arid%20region.pdf
http://psasir.upm.edu.my/id/eprint/23022/
http://www.pjoes.com/abstracts/2011/Vol20/No05/20.html
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.upm.eprints.23022
record_format eprints
spelling my.upm.eprints.230222015-11-30T06:24:40Z http://psasir.upm.edu.my/id/eprint/23022/ Irrigated silage maize yield and water productivity response to deficit irrigation in an Arid region Salemi, Hamidreza Mohd Soom, Mohd Amin Mousavi, Sayed-Farhad Ganji, Arman Lee, Teang Shui Yusoff, Mohd Kamil Verdinejad, Vahid Reza Simulation models have proven to be useful. The AquaCrop model, which has been expanded by FAO, simulates crop yield based on the applied water under conditions of full and deficit irrigation levels. In this study, the AquaCrop model’s performance was tested using data for silage maize (Zea mays L.) under full (100% fulfillment of ETc) and deficit irrigation levels (90, 80, 70, and 60% of full irrigation) in the arid and semiarid environment of central Iran in the Gavkhuni River Basin (GRB). To calibrate this model, we used physiological measurement sets of cropping seasons 2000 to 2002. AquaCrop simulated well the decrease of the biomass yield (B-yield) of silage maize in response to drought as happened in the field. B-yield was decreased by 9.9% under deficit irrigation as compared to fully irrigated conditions. The coefficient of determination (R2) for simulation of B-yield and water productivity (WP) was 0.95 and 0.99, respectively. But the R2=0.77 was not satisfactory for actual evapotranspiration (ETa). The results for all investigated parameters in the three years showed that RMSE, d, ME, CRM, and E values ranged from 0.90% to 3.85%, 0.98 to 1, 1.25% to 6.4%, -0.027 to 0.03, and 0.817 to 100%, respectively. At the end, a local second-degree polynomial crop water production function (CWPF) for silage maize is presented. 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23022/1/Irrigated%20silage%20maize%20yield%20and%20water%20productivity%20response%20to%20deficit%20irrigation%20in%20an%20Arid%20region.pdf Salemi, Hamidreza and Mohd Soom, Mohd Amin and Mousavi, Sayed-Farhad and Ganji, Arman and Lee, Teang Shui and Yusoff, Mohd Kamil and Verdinejad, Vahid Reza (2011) Irrigated silage maize yield and water productivity response to deficit irrigation in an Arid region. Polish Journal of Environmental Studies, 20 (5). pp. 1295-1303. ISSN 1230-1485 http://www.pjoes.com/abstracts/2011/Vol20/No05/20.html
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Simulation models have proven to be useful. The AquaCrop model, which has been expanded by FAO, simulates crop yield based on the applied water under conditions of full and deficit irrigation levels. In this study, the AquaCrop model’s performance was tested using data for silage maize (Zea mays L.) under full (100% fulfillment of ETc) and deficit irrigation levels (90, 80, 70, and 60% of full irrigation) in the arid and semiarid environment of central Iran in the Gavkhuni River Basin (GRB). To calibrate this model, we used physiological measurement sets of cropping seasons 2000 to 2002. AquaCrop simulated well the decrease of the biomass yield (B-yield) of silage maize in response to drought as happened in the field. B-yield was decreased by 9.9% under deficit irrigation as compared to fully irrigated conditions. The coefficient of determination (R2) for simulation of B-yield and water productivity (WP) was 0.95 and 0.99, respectively. But the R2=0.77 was not satisfactory for actual evapotranspiration (ETa). The results for all investigated parameters in the three years showed that RMSE, d, ME, CRM, and E values ranged from 0.90% to 3.85%, 0.98 to 1, 1.25% to 6.4%, -0.027 to 0.03, and 0.817 to 100%, respectively. At the end, a local second-degree polynomial crop water production function (CWPF) for silage maize is presented.
format Article
author Salemi, Hamidreza
Mohd Soom, Mohd Amin
Mousavi, Sayed-Farhad
Ganji, Arman
Lee, Teang Shui
Yusoff, Mohd Kamil
Verdinejad, Vahid Reza
spellingShingle Salemi, Hamidreza
Mohd Soom, Mohd Amin
Mousavi, Sayed-Farhad
Ganji, Arman
Lee, Teang Shui
Yusoff, Mohd Kamil
Verdinejad, Vahid Reza
Irrigated silage maize yield and water productivity response to deficit irrigation in an Arid region
author_facet Salemi, Hamidreza
Mohd Soom, Mohd Amin
Mousavi, Sayed-Farhad
Ganji, Arman
Lee, Teang Shui
Yusoff, Mohd Kamil
Verdinejad, Vahid Reza
author_sort Salemi, Hamidreza
title Irrigated silage maize yield and water productivity response to deficit irrigation in an Arid region
title_short Irrigated silage maize yield and water productivity response to deficit irrigation in an Arid region
title_full Irrigated silage maize yield and water productivity response to deficit irrigation in an Arid region
title_fullStr Irrigated silage maize yield and water productivity response to deficit irrigation in an Arid region
title_full_unstemmed Irrigated silage maize yield and water productivity response to deficit irrigation in an Arid region
title_sort irrigated silage maize yield and water productivity response to deficit irrigation in an arid region
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/23022/1/Irrigated%20silage%20maize%20yield%20and%20water%20productivity%20response%20to%20deficit%20irrigation%20in%20an%20Arid%20region.pdf
http://psasir.upm.edu.my/id/eprint/23022/
http://www.pjoes.com/abstracts/2011/Vol20/No05/20.html
_version_ 1643827938122006528
score 13.211869

Similar Items