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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
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Fecha actual : |
10/06/2019 |
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Actualizado : |
06/07/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
CARRACELAS, G.; HORNBUCKLE, J.; ROSAS, J.E.; ROEL, A. |
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Afiliación : |
JULIO GONZALO CARRACELAS GARRIDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Deakin University, Faculty of Science Engineering & Built Environment, Centre for Regional and Rural Futures, Griffith, New South Wales, Australia.; J. HORNBUCKLE, Deakin University, Faculty of Science Engineering & Built Environment, Centre for Regional and Rural Futures, Griffith, New South Wales, Australia.; JUAN EDUARDO ROSAS CAISSIOLS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Irrigation management strategies to increase water productivity in Oryza sativa (rice) in Uruguay. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Agricultural Water Management, Volume 222, 1 August 2019, Pages 161-172. DOI: https://doi.org/10.1016/j.agwat.2019.05.049 |
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DOI : |
10.1016/j.agwat.2019.05.049 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 29 March 2019; Received in revised form 29 May 2019; Accepted 30 May 2019. |
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Contenido : |
Traditional rice irrigation systems in Uruguay are fully irrigated and early continuously flooded irrigation accounts for a high volume of water used. The purpose of this study was to determine irrigation techniques that increase irrigation water productivity (WPi) allowing a reduction in water input without negatively affecting grain yield in Uruguay. Ten experiments were conducted over a six-year period from 2009 to 2015, in three experimental units located among the major rice growing regions. Treatments included: early continuous flooding (C), alternate wetting and drying (AWD), intermittent flooding until panicle initiation (IP) and intermittent flooding during all crop growth period (I). All treatments were planted on dry soil. In treatment C flooding started 15?20 days after emergence and a water layer of 10 cm above the soil surface was maintained throughout all the crop cycle. In treatments IP and I, the water level alternated between 10 cm and 0 cm and was re-established when the soil was still saturated. The AWD treatment allowed the soil to dry periodically (water
depletion of 50% of soil available water) until panicle initiation. IP and I over three seasons led to significant savings in irrigation water inputs in the North and Central regions (averaged 35% or - 3986 m3 ha−1) in relation to C. In the East region, AWD allowed for a 29%(-2067m3 ha−1) water saving in relation to the control over four seasons but determined a significant yield loss of 1339 kg rice ha−1 (15% reduction) in relation to C. WPi was increased by 0.25 kg m−3 (23%) in IP and 0.68 kg m−3 (62%) in I, in relation to the control C. Whole grain percentage was significantly reduced with I in the North region only. Techniques that maintained the soil water at saturated conditions like intermittent flooding, allowed a reduction of water input with no significant effects
on grain yield, which led to a significant increase in WPi. MenosTraditional rice irrigation systems in Uruguay are fully irrigated and early continuously flooded irrigation accounts for a high volume of water used. The purpose of this study was to determine irrigation techniques that increase irrigation water productivity (WPi) allowing a reduction in water input without negatively affecting grain yield in Uruguay. Ten experiments were conducted over a six-year period from 2009 to 2015, in three experimental units located among the major rice growing regions. Treatments included: early continuous flooding (C), alternate wetting and drying (AWD), intermittent flooding until panicle initiation (IP) and intermittent flooding during all crop growth period (I). All treatments were planted on dry soil. In treatment C flooding started 15?20 days after emergence and a water layer of 10 cm above the soil surface was maintained throughout all the crop cycle. In treatments IP and I, the water level alternated between 10 cm and 0 cm and was re-established when the soil was still saturated. The AWD treatment allowed the soil to dry periodically (water
depletion of 50% of soil available water) until panicle initiation. IP and I over three seasons led to significant savings in irrigation water inputs in the North and Central regions (averaged 35% or - 3986 m3 ha−1) in relation to C. In the East region, AWD allowed for a 29%(-2067m3 ha−1) water saving in relation to the control over four seasons but determined a significant yield loss of 133... Presentar Todo |
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Palabras claves : |
ALTERNATE WETTING AND DRYING; INTERMITTENT; QUALITY; RICE (ORYZA SATIVA L.); WATER PRODUCTIVITY; YIELD. |
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Thesagro : |
ARROZ. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02901naa a2200265 a 4500
001 1059837
005 2020-07-06
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agwat.2019.05.049$2DOI
100 1 $aCARRACELAS, G.
245 $aIrrigation management strategies to increase water productivity in Oryza sativa (rice) in Uruguay.$h[electronic resource]
260 $c2019
500 $aArticle history: Received 29 March 2019; Received in revised form 29 May 2019; Accepted 30 May 2019.
520 $aTraditional rice irrigation systems in Uruguay are fully irrigated and early continuously flooded irrigation accounts for a high volume of water used. The purpose of this study was to determine irrigation techniques that increase irrigation water productivity (WPi) allowing a reduction in water input without negatively affecting grain yield in Uruguay. Ten experiments were conducted over a six-year period from 2009 to 2015, in three experimental units located among the major rice growing regions. Treatments included: early continuous flooding (C), alternate wetting and drying (AWD), intermittent flooding until panicle initiation (IP) and intermittent flooding during all crop growth period (I). All treatments were planted on dry soil. In treatment C flooding started 15?20 days after emergence and a water layer of 10 cm above the soil surface was maintained throughout all the crop cycle. In treatments IP and I, the water level alternated between 10 cm and 0 cm and was re-established when the soil was still saturated. The AWD treatment allowed the soil to dry periodically (water depletion of 50% of soil available water) until panicle initiation. IP and I over three seasons led to significant savings in irrigation water inputs in the North and Central regions (averaged 35% or - 3986 m3 ha−1) in relation to C. In the East region, AWD allowed for a 29%(-2067m3 ha−1) water saving in relation to the control over four seasons but determined a significant yield loss of 1339 kg rice ha−1 (15% reduction) in relation to C. WPi was increased by 0.25 kg m−3 (23%) in IP and 0.68 kg m−3 (62%) in I, in relation to the control C. Whole grain percentage was significantly reduced with I in the North region only. Techniques that maintained the soil water at saturated conditions like intermittent flooding, allowed a reduction of water input with no significant effects on grain yield, which led to a significant increase in WPi.
650 $aARROZ
653 $aALTERNATE WETTING AND DRYING
653 $aINTERMITTENT
653 $aQUALITY
653 $aRICE (ORYZA SATIVA L.)
653 $aWATER PRODUCTIVITY
653 $aYIELD
700 1 $aHORNBUCKLE, J.
700 1 $aROSAS, J.E.
700 1 $aROEL, A.
773 $tAgricultural Water Management, Volume 222, 1 August 2019, Pages 161-172. DOI: https://doi.org/10.1016/j.agwat.2019.05.049
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