TY  - JOUR
AU  - Todorović, Mladen
AU  - Albrizio, Rossella
AU  - Životić, Ljubomir
AU  - Saab, Marie-Therese Abi
AU  - Stockle, Claudio
AU  - Steduto, Pasquale
PY  - 2009
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1988
AB  - This work compares the performance of AquaCrop, a crop simulation model developed by FAO, with that of two well established models, CropSyst and WOFOST, in simulating sunflower (Helianthus annuus L.) growth under different water regimes in a Mediterranean environment. The models differ in the level of complexity describing crop development, in the main growth modules driving the simulation of biomass growth, and in the number of input parameters. AquaCrop is exclusively based on the water-driven growth module, in that transpiration is converted into biomass through a water productivity (WP) parameter; Cropsyst is based on both water and radiation driven modules, while WOFOST simulates crop growth using a carbon driven approach and fraction of intercepted radiation. The data used in the analysis were obtained in field experiments with hybrid Sanbro_MR, performed in a typical Mediterranean area of Southern Italy in 2005 and 2007. The models were calibrated on data from a full irrigation treatment in 2007, and were validated on a full irrigation treatment in 2005 and several deficit irrigation (DI) treatments, including regulated deficit irrigation (RDI) and rain-fed (RF) conditions. Although AquaCrop required less input information than CropSystand WOFOST, it performed similarly to them in simulating both biomass and yield at harvesting. The use of different numbers of parameters and crop growth modules by the tested models did not influence substantially the simulation results. Therefore, for management purposes and in conditions of limited input information, the use of simpler models should be encouraged.
PB  - Wiley, Hoboken
T2  - Agronomy Journal
T1  - Assessment of AquaCrop, CropSyst, and WOFOST Models in the Simulation of Sunflower Growth under Different Water Regimes
EP  - 521
IS  - 3
SP  - 509
VL  - 101
DO  - 10.2134/agronj2008.0166s
ER  - 

@article{
author = "Todorović, Mladen and Albrizio, Rossella and Životić, Ljubomir and Saab, Marie-Therese Abi and Stockle, Claudio and Steduto, Pasquale",
year = "2009",
abstract = "This work compares the performance of AquaCrop, a crop simulation model developed by FAO, with that of two well established models, CropSyst and WOFOST, in simulating sunflower (Helianthus annuus L.) growth under different water regimes in a Mediterranean environment. The models differ in the level of complexity describing crop development, in the main growth modules driving the simulation of biomass growth, and in the number of input parameters. AquaCrop is exclusively based on the water-driven growth module, in that transpiration is converted into biomass through a water productivity (WP) parameter; Cropsyst is based on both water and radiation driven modules, while WOFOST simulates crop growth using a carbon driven approach and fraction of intercepted radiation. The data used in the analysis were obtained in field experiments with hybrid Sanbro_MR, performed in a typical Mediterranean area of Southern Italy in 2005 and 2007. The models were calibrated on data from a full irrigation treatment in 2007, and were validated on a full irrigation treatment in 2005 and several deficit irrigation (DI) treatments, including regulated deficit irrigation (RDI) and rain-fed (RF) conditions. Although AquaCrop required less input information than CropSystand WOFOST, it performed similarly to them in simulating both biomass and yield at harvesting. The use of different numbers of parameters and crop growth modules by the tested models did not influence substantially the simulation results. Therefore, for management purposes and in conditions of limited input information, the use of simpler models should be encouraged.",
publisher = "Wiley, Hoboken",
journal = "Agronomy Journal",
title = "Assessment of AquaCrop, CropSyst, and WOFOST Models in the Simulation of Sunflower Growth under Different Water Regimes",
pages = "521-509",
number = "3",
volume = "101",
doi = "10.2134/agronj2008.0166s"
}

Todorović, M., Albrizio, R., Životić, L., Saab, M. A., Stockle, C.,& Steduto, P.. (2009). Assessment of AquaCrop, CropSyst, and WOFOST Models in the Simulation of Sunflower Growth under Different Water Regimes. in Agronomy Journal
Wiley, Hoboken., 101(3), 509-521.
https://doi.org/10.2134/agronj2008.0166s

Todorović M, Albrizio R, Životić L, Saab MA, Stockle C, Steduto P. Assessment of AquaCrop, CropSyst, and WOFOST Models in the Simulation of Sunflower Growth under Different Water Regimes. in Agronomy Journal. 2009;101(3):509-521.
doi:10.2134/agronj2008.0166s .

Todorović, Mladen, Albrizio, Rossella, Životić, Ljubomir, Saab, Marie-Therese Abi, Stockle, Claudio, Steduto, Pasquale, "Assessment of AquaCrop, CropSyst, and WOFOST Models in the Simulation of Sunflower Growth under Different Water Regimes" in Agronomy Journal, 101, no. 3 (2009):509-521,
https://doi.org/10.2134/agronj2008.0166s . .

TY  - CONF
AU  - Todorović, Mladen
AU  - Albrizio, Rossella
AU  - Životić, Ljubomir
PY  - 2007
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6749
AB  - This work aims at: analyzing response of sunflower crop to several irrigation water regimes and evaluating the suitability of sunflower to deficit irrigation strategies. An open-field trial on hybrid Sanbro_MR was carried out at experimental fields in Valenzano (Bari, Southern Italy), characterized by semi-arid Mediterranean climate and clay-loamy soil. The experiment includes five irrigation regimes: optimal water supply, application of 100 percent of water requirements up to flowering and 70 percent thereafter, application of 70 percent of water requirements through the whole season, application of 70 percent of water requirements up to flowering and rainfed conditions thereafter, and rainfed conditions during the whole season. Sunflower response to water supply and intensity, timing and duration of water stress was investigated by means of leaf area index (LAI), radiation interception, biomass production, water consumption, yield, water use efficiency (WUE) and radiation use efficiency (RUE). The overall results indicate deficit irrigation as an acceptable strategy for sunflower highlighting the importance of irrigation between flowering and maturity.

Ce travail vise à analyser la réponse de la culture de tournesol à plusieurs régimes hydriques et à évaluer l'aptitude de la plante aux stratégies d'irrigation déficitaire. Une expérimentation a été menée sur l'hybride Sanbro_MR cultivé dans les champs expérimentaux de Valenzano (Bari, Italie du Sud), dans un climat méditerranéen semi-aride et sur un sol moyennement argileux. L'expérience comprend cinq régimes d'irrigation: un apport hydrique optimal, une application à 100 pour cent des besoins en eau jusqu'à la floraison puis à 70 pour cent, une application de 70 pour cent des besoins en eau durant toute la saison, une application de 70 pour cent des besoins en eau jusqu'à la floraison suivie d'un régime en culture pluviale et enfin, un régime de culture pluviale pendant toute la saison. La réponse du tournesol à l'intensité de l'apport hydrique et à la durée de sa contrainte a été étudiée à l'aide des moyens suivants : l'indice de surface foliaire (LAI), l'interception du rayonnement, la production de biomasse, la consommation en eau, le rendement, l'efficience d'utilisation de l'eau (WUE) et l'efficience d'utilisation du rayonnement (RUE). Les résultats globaux indiquent que l'irrigation déficitaire est une stratégie acceptable pour le tournesol et soulignent l'importance de l'irrigation entre la floraison et la maturité.
PB  - Bari : CIHEAM, 2007
C3  - International Conference on Water Saving in Mediterranean Agriculture & Future Research Needs, CIHEAM, Mediterranean Agronomic Institute of Bari, Italy – Valenzano, Italy
T1  - Deficit irrigation of sunflower under Mediterranean environmental conditions
EP  - 168
SP  - 153
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6749
ER  - 

@conference{
author = "Todorović, Mladen and Albrizio, Rossella and Životić, Ljubomir",
year = "2007",
abstract = "This work aims at: analyzing response of sunflower crop to several irrigation water regimes and evaluating the suitability of sunflower to deficit irrigation strategies. An open-field trial on hybrid Sanbro_MR was carried out at experimental fields in Valenzano (Bari, Southern Italy), characterized by semi-arid Mediterranean climate and clay-loamy soil. The experiment includes five irrigation regimes: optimal water supply, application of 100 percent of water requirements up to flowering and 70 percent thereafter, application of 70 percent of water requirements through the whole season, application of 70 percent of water requirements up to flowering and rainfed conditions thereafter, and rainfed conditions during the whole season. Sunflower response to water supply and intensity, timing and duration of water stress was investigated by means of leaf area index (LAI), radiation interception, biomass production, water consumption, yield, water use efficiency (WUE) and radiation use efficiency (RUE). The overall results indicate deficit irrigation as an acceptable strategy for sunflower highlighting the importance of irrigation between flowering and maturity.

Ce travail vise à analyser la réponse de la culture de tournesol à plusieurs régimes hydriques et à évaluer l'aptitude de la plante aux stratégies d'irrigation déficitaire. Une expérimentation a été menée sur l'hybride Sanbro_MR cultivé dans les champs expérimentaux de Valenzano (Bari, Italie du Sud), dans un climat méditerranéen semi-aride et sur un sol moyennement argileux. L'expérience comprend cinq régimes d'irrigation: un apport hydrique optimal, une application à 100 pour cent des besoins en eau jusqu'à la floraison puis à 70 pour cent, une application de 70 pour cent des besoins en eau durant toute la saison, une application de 70 pour cent des besoins en eau jusqu'à la floraison suivie d'un régime en culture pluviale et enfin, un régime de culture pluviale pendant toute la saison. La réponse du tournesol à l'intensité de l'apport hydrique et à la durée de sa contrainte a été étudiée à l'aide des moyens suivants : l'indice de surface foliaire (LAI), l'interception du rayonnement, la production de biomasse, la consommation en eau, le rendement, l'efficience d'utilisation de l'eau (WUE) et l'efficience d'utilisation du rayonnement (RUE). Les résultats globaux indiquent que l'irrigation déficitaire est une stratégie acceptable pour le tournesol et soulignent l'importance de l'irrigation entre la floraison et la maturité.",
publisher = "Bari : CIHEAM, 2007",
journal = "International Conference on Water Saving in Mediterranean Agriculture & Future Research Needs, CIHEAM, Mediterranean Agronomic Institute of Bari, Italy – Valenzano, Italy",
title = "Deficit irrigation of sunflower under Mediterranean environmental conditions",
pages = "168-153",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6749"
}

Todorović, M., Albrizio, R.,& Životić, L.. (2007). Deficit irrigation of sunflower under Mediterranean environmental conditions. in International Conference on Water Saving in Mediterranean Agriculture & Future Research Needs, CIHEAM, Mediterranean Agronomic Institute of Bari, Italy – Valenzano, Italy
Bari : CIHEAM, 2007., 153-168.
https://hdl.handle.net/21.15107/rcub_agrospace_6749

Todorović M, Albrizio R, Životić L. Deficit irrigation of sunflower under Mediterranean environmental conditions. in International Conference on Water Saving in Mediterranean Agriculture & Future Research Needs, CIHEAM, Mediterranean Agronomic Institute of Bari, Italy – Valenzano, Italy. 2007;:153-168.
https://hdl.handle.net/21.15107/rcub_agrospace_6749 .

Todorović, Mladen, Albrizio, Rossella, Životić, Ljubomir, "Deficit irrigation of sunflower under Mediterranean environmental conditions" in International Conference on Water Saving in Mediterranean Agriculture & Future Research Needs, CIHEAM, Mediterranean Agronomic Institute of Bari, Italy – Valenzano, Italy (2007):153-168,
https://hdl.handle.net/21.15107/rcub_agrospace_6749 .