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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
15/06/2022 |
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Actualizado : |
02/09/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
NÚÑEZ, A.; BALL, R.; SCHIPANSKI, M. |
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Afiliación : |
AGUSTIN NUÑEZ RUSSI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Department of Soil and Crop Sciences, Colorado State University, 307 University Ave., Fort Collins, CO. 80523-1170, USA.; Department of Soil and Crop Sciences, Colorado State University, 307 University Ave., Fort Collins, CO. 80523-1170, United States of America.; Department of Soil and Crop Sciences, Colorado State University, 307 University Ave., Fort Collins, CO. 80523-1170, United States of America. |
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Título : |
Plant and soil microbial responses to irrigation retirement in semiarid cropping systems. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Environmental Research Communications, 2022, Volume 4, Issue 3, Article number 035004. OPEN ACCESS. doi: https://doi.org/10.1088/2515-7620/ac59c3 |
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DOI : |
10.1088/2515-7620/ac59c3 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 22 December 2021/Revised 17 February 2022/ Accepted for publications 2 March 2022 /Published
17 March 2022 |
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Contenido : |
Abstract:
Water scarcity limits irrigated agriculture, and there is an increasing frequency of situations where farmers must transition from irrigated to dryland cropping systems. This transition poses several challenges, and it is necessary to understand the changes in crop productivity and soil health for the design of viable cropping systems. Our objective was to compare the impact of irrigation retirement on crop production and soil microbial dynamics under the two major crops of the semiarid High Plains. In a formerly irrigated field, we installed a transition experiment that consisted of two irrigation managements, irrigated and non-irrigated (retired), under two cropping systems:
continuous maize and continuouswinter wheat. Lower soil moisture after irrigation retirement decreased plant biomass production in both crops, with a higher effect on maize (2 to 6-fold decrease) than on wheat (20% less aboveground biomass production). In both crops, irrigation retirement affected crop development in the order grain yield > aboveground biomass > belowground biomass. Soil microbial communities were less affected by irrigation retirement than the evaluated crops and changes were concentrated in the maize agroecosystem. After three seasons, the high decrease in maize productivity and soil moisture resulted in 50% less extracellular enzyme
activity in the dryland treatment, but without consistent effects on microbial biomass or community composition assessed by phospholipid fatty acids. Winter wheat appears as a viable option not only to sustain crop production but also to minimize the negative impacts of irrigation retirement on soil health. However, root production was lower in wheat than in maize, which may affect the long-term
evolution of soil organic carbon. MenosAbstract:
Water scarcity limits irrigated agriculture, and there is an increasing frequency of situations where farmers must transition from irrigated to dryland cropping systems. This transition poses several challenges, and it is necessary to understand the changes in crop productivity and soil health for the design of viable cropping systems. Our objective was to compare the impact of irrigation retirement on crop production and soil microbial dynamics under the two major crops of the semiarid High Plains. In a formerly irrigated field, we installed a transition experiment that consisted of two irrigation managements, irrigated and non-irrigated (retired), under two cropping systems:
continuous maize and continuouswinter wheat. Lower soil moisture after irrigation retirement decreased plant biomass production in both crops, with a higher effect on maize (2 to 6-fold decrease) than on wheat (20% less aboveground biomass production). In both crops, irrigation retirement affected crop development in the order grain yield > aboveground biomass > belowground biomass. Soil microbial communities were less affected by irrigation retirement than the evaluated crops and changes were concentrated in the maize agroecosystem. After three seasons, the high decrease in maize productivity and soil moisture resulted in 50% less extracellular enzyme
activity in the dryland treatment, but without consistent effects on microbial biomass or community composition assessed by phospholipid fatty... Presentar Todo |
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Palabras claves : |
Crop productivity; Dryland agriculture,; Root:shoot ratio; Soil enzymes; Soil moisture. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16660/1/Nunez-2022-Environ.-Res.-Commun.-4-035004.pdf
https://iopscience.iop.org/article/10.1088/2515-7620/ac59c3/pdf
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Marc : |
LEADER 02682naa a2200229 a 4500
001 1063301
005 2022-09-02
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1088/2515-7620/ac59c3$2DOI
100 1 $aNÚÑEZ, A.
245 $aPlant and soil microbial responses to irrigation retirement in semiarid cropping systems.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 22 December 2021/Revised 17 February 2022/ Accepted for publications 2 March 2022 /Published 17 March 2022
520 $aAbstract: Water scarcity limits irrigated agriculture, and there is an increasing frequency of situations where farmers must transition from irrigated to dryland cropping systems. This transition poses several challenges, and it is necessary to understand the changes in crop productivity and soil health for the design of viable cropping systems. Our objective was to compare the impact of irrigation retirement on crop production and soil microbial dynamics under the two major crops of the semiarid High Plains. In a formerly irrigated field, we installed a transition experiment that consisted of two irrigation managements, irrigated and non-irrigated (retired), under two cropping systems: continuous maize and continuouswinter wheat. Lower soil moisture after irrigation retirement decreased plant biomass production in both crops, with a higher effect on maize (2 to 6-fold decrease) than on wheat (20% less aboveground biomass production). In both crops, irrigation retirement affected crop development in the order grain yield > aboveground biomass > belowground biomass. Soil microbial communities were less affected by irrigation retirement than the evaluated crops and changes were concentrated in the maize agroecosystem. After three seasons, the high decrease in maize productivity and soil moisture resulted in 50% less extracellular enzyme activity in the dryland treatment, but without consistent effects on microbial biomass or community composition assessed by phospholipid fatty acids. Winter wheat appears as a viable option not only to sustain crop production but also to minimize the negative impacts of irrigation retirement on soil health. However, root production was lower in wheat than in maize, which may affect the long-term evolution of soil organic carbon.
653 $aCrop productivity
653 $aDryland agriculture,
653 $aRoot:shoot ratio
653 $aSoil enzymes
653 $aSoil moisture
700 1 $aBALL, R.
700 1 $aSCHIPANSKI, M.
773 $tEnvironmental Research Communications, 2022, Volume 4, Issue 3, Article number 035004. OPEN ACCESS. doi: https://doi.org/10.1088/2515-7620/ac59c3
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