Irrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration

The experiment with drip irrigated pepper was conducted at the Rimski Šančevi experimental field of the Institute of Field and Vegetable Crops in Novi Sad in 2019. The irrigation was scheduled on the basis of the water balance method. Two methods were used to compute the daily evapotranspiration of...

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Autores principales:	Pejić Borivoj, Bajić Ivana, Mačkić Ksenija, Bugarski Dušanka, Vlajić Slobodan, Takač Adam, Aksić Miroljub
Formato:	article
Lenguaje:	EN SR
Publicado:	University of Kragujevac, Faculty of Agronomy, Cacak 2021
Materias:	pepper irrigation yield water productivity evapotranspiration Agriculture S
Acceso en línea:	https://doaj.org/article/96155dfefdc94c199d135edc62585d31
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spelling	oai:doaj.org-article:96155dfefdc94c199d135edc62585d312021-12-05T18:00:31ZIrrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration0354-95422560-314010.5937/AASer2151069Phttps://doaj.org/article/96155dfefdc94c199d135edc62585d312021-01-01T00:00:00Zhttps://scindeks-clanci.ceon.rs/data/pdf/0354-9542/2021/0354-95422151069P.pdfhttps://doaj.org/toc/0354-9542https://doaj.org/toc/2560-3140The experiment with drip irrigated pepper was conducted at the Rimski Šančevi experimental field of the Institute of Field and Vegetable Crops in Novi Sad in 2019. The irrigation was scheduled on the basis of the water balance method. Two methods were used to compute the daily evapotranspiration of pepper (ETd): reference evapotranspiration (ETo) and evaporation from an open water surface (Eo). Crop coefficients (kc) and corrective coefficients (k) were used to convert ETo and Eo values into ETd. Kc and k were 0.3-0.4, 0.6-0.7, 0.9-1.1, 0.8-0.9 and 0.4, 0.7, 1.0 and 0.8 for initial stage, crop development, mid season, and late season, respectively. ETo was calculated by the Hargreaves equation. Eo values were measured by a Class-A pan located at a meteorological station near the experimental plot. Irrigation started when readily available water (RAW) in the 0.3 m soil layer was completely absorbed by plants. Differences in crop yield (Y) and irrigation water use efficiency (IWUE) obtained using Eo (42.58 t ha-1, 15.20 kg m-3) and ETo (40.78 t ha-1, 14.56 kg m-3) were not statistically different. Evapotranspiration rate was 364.2 mm and 337.3 mm in Eo and ETo variant, respectively. The fact that the differences in Y and IWUE between different calculations of ETd were not statistically significant indicates that both methods can be recommended for irrigation scheduling programs for pepper in the climatic conditions of the Vojvodina region. However, priority should be given to ETo due to the easy accessibility and reliability of data.Pejić BorivojBajić IvanaMačkić KsenijaBugarski DušankaVlajić SlobodanTakač AdamAksić MiroljubUniversity of Kragujevac, Faculty of Agronomy, Cacakarticlepepperirrigationyieldwater productivityevapotranspirationAgricultureSENSRActa Agriculturae Serbica, Vol 26, Iss 51, Pp 69-76 (2021)
institution	DOAJ
collection	DOAJ
language	EN SR
topic	pepper irrigation yield water productivity evapotranspiration Agriculture S
spellingShingle	pepper irrigation yield water productivity evapotranspiration Agriculture S Pejić Borivoj Bajić Ivana Mačkić Ksenija Bugarski Dušanka Vlajić Slobodan Takač Adam Aksić Miroljub Irrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration
description	The experiment with drip irrigated pepper was conducted at the Rimski Šančevi experimental field of the Institute of Field and Vegetable Crops in Novi Sad in 2019. The irrigation was scheduled on the basis of the water balance method. Two methods were used to compute the daily evapotranspiration of pepper (ETd): reference evapotranspiration (ETo) and evaporation from an open water surface (Eo). Crop coefficients (kc) and corrective coefficients (k) were used to convert ETo and Eo values into ETd. Kc and k were 0.3-0.4, 0.6-0.7, 0.9-1.1, 0.8-0.9 and 0.4, 0.7, 1.0 and 0.8 for initial stage, crop development, mid season, and late season, respectively. ETo was calculated by the Hargreaves equation. Eo values were measured by a Class-A pan located at a meteorological station near the experimental plot. Irrigation started when readily available water (RAW) in the 0.3 m soil layer was completely absorbed by plants. Differences in crop yield (Y) and irrigation water use efficiency (IWUE) obtained using Eo (42.58 t ha-1, 15.20 kg m-3) and ETo (40.78 t ha-1, 14.56 kg m-3) were not statistically different. Evapotranspiration rate was 364.2 mm and 337.3 mm in Eo and ETo variant, respectively. The fact that the differences in Y and IWUE between different calculations of ETd were not statistically significant indicates that both methods can be recommended for irrigation scheduling programs for pepper in the climatic conditions of the Vojvodina region. However, priority should be given to ETo due to the easy accessibility and reliability of data.
format	article
author	Pejić Borivoj Bajić Ivana Mačkić Ksenija Bugarski Dušanka Vlajić Slobodan Takač Adam Aksić Miroljub
author_facet	Pejić Borivoj Bajić Ivana Mačkić Ksenija Bugarski Dušanka Vlajić Slobodan Takač Adam Aksić Miroljub
author_sort	Pejić Borivoj
title	Irrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration
title_short	Irrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration
title_full	Irrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration
title_fullStr	Irrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration
title_full_unstemmed	Irrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration
title_sort	irrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration
publisher	University of Kragujevac, Faculty of Agronomy, Cacak
publishDate	2021
url	https://doaj.org/article/96155dfefdc94c199d135edc62585d31
work_keys_str_mv	AT pejicborivoj irrigationschedulingstrategiesforpepperbasedonevaporationandreferenceevapotranspiration AT bajicivana irrigationschedulingstrategiesforpepperbasedonevaporationandreferenceevapotranspiration AT mackicksenija irrigationschedulingstrategiesforpepperbasedonevaporationandreferenceevapotranspiration AT bugarskidusanka irrigationschedulingstrategiesforpepperbasedonevaporationandreferenceevapotranspiration AT vlajicslobodan irrigationschedulingstrategiesforpepperbasedonevaporationandreferenceevapotranspiration AT takacadam irrigationschedulingstrategiesforpepperbasedonevaporationandreferenceevapotranspiration AT aksicmiroljub irrigationschedulingstrategiesforpepperbasedonevaporationandreferenceevapotranspiration
_version_	1718371252448526336

Irrigation scheduling strategies for pepper based on evaporation and reference evapotranspiration

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