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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
10/05/2021 |
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Actualizado : |
10/05/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
YUAN, S.; LINQUIST, B.; WILSON, L.; CASSMAN, K.; STUART, A.; PEDE, V.; MIRO, B.; SAITO, K.; AGUSTIANI, N.; ARISTYA, V.; KRISNADI, L.; ZANON, A.; HEINEMANN, A.; CARRACELAS, G.; SUBASH, N.; BRAHMANAND, P.; LI, T.; PENG, S.; GRASSINI, P. |
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Afiliación : |
SHEN YUAN, Huazhong Agricultural University; BRUCE LINQUIST, UC Davis; LLOYD WILSON, Texas A&M AgriLife Research Center; KENNETH CASSMAN, University of Nebraska-Lincoln; ALEXANDER STUART, International Rice Research Institute; VALERIEN PEDE, International Rice Research Institute; BERTA MIRO, International Rice Research Institute; KAZUKI SAITO, Africa Rice; NURWULAN AGUSTIANI, Indonesian Center for Rice Research; VINA ARISTYA, Assessment Institute of Agricultural Technology; LEONARDUS KRISNADI, Assessment Institute of Agricultural Technology; ALENCAR ZANON, Universidade Federal de Santa Maria; ALEXANDRE HEINEMANN, EMBRAPA Arroz e Feijao; JULIO GONZALO CARRACELAS GARRIDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NATARAJA SUBASH, Indian Institute of Farming Systems Research; POTHULA BRAHMANAND, ICAR-Indian Institute of Water Management; TAO LI, Applied GeoSolutions (United States); SHAOBING PENG, Shaobing Peng; PATRICIO GRASSINI. |
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Título : |
A roadmap towards sustainable intensification for a larger global rice bowl |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Research Square, 2021. DOI: https://doi.org/10.21203/rs.3.rs-401904/v1 |
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DOI : |
10.21203/rs.3.rs-401904/v1 |
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Idioma : |
Inglés |
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Notas : |
Acknowledgements: We would like to thank Dr. Russell Ford (former Head of Agronomic R&D at Sunrice) for providing data for rice in Australia and Dr. P.A.J. van Oort for performing the simulations of yield potential for African countries. We would also like to thank agronomists and extension personnel for their help to collect the survey data from the 32 cropping systems included in this study. This work was supported by the National Key Research and Development Program of China (2016YFD0300210), the Major International (Regional) Joint Research Project of NSFC (32061143038), the Earmarked Fund for the China Agriculture
Research System (CARS-01-20), the China Scholarship Council (201706760015), and the China
Postdoctoral Science Foundation (2020M682439). We also acknowledge GRISP, RICE CRP, and the Swiss Agency for Development and Cooperation for their nancial support to conduct the MISTIG, MISTIR and CORIGAP surveys, respectively (Grant 681 no. 7F-08412.02). |
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Contenido : |
Abstract: Future rice systems will need to produce more grain while minimizing the environmental impact. A key question is how to orient agricultural research & development (R&D) programs at national to global scales to maximize the return on investment. Here we assess yield gap and resource-use efficiency (including water, pesticides, nitrogen, labor, and energy) across 32 rice cropping systems, together accounting for 88% of global rice production. We show that achieving high yields and high resource-use efficiencies are not conflicting goals. Most cropping systems have room for increasing yield, resource-use efficiency, or both. In aggregate, current total rice production of these systems can be increased by 36%, and excess nitrogen almost eliminated, by focusing on a relatively small number of cropping systems with large yield gaps and/or poor resource-use efficiencies. This study provides essential strategic insight for prioritizing national and global agricultural R&D investments to ensure adequate rice supply while minimizing negative environmental impact in coming decades. |
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Palabras claves : |
ENVIRONMENTAL IMPACT; PROGRAMA ARROZ; RICE; SUSTAINABLE INTENSIFICATION; YIELD GAP. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03176naa a2200421 a 4500
001 1062039
005 2021-05-10
008 2021 bl uuuu u00u1 u #d
024 7 $a10.21203/rs.3.rs-401904/v1$2DOI
100 1 $aYUAN, S.
245 $aA roadmap towards sustainable intensification for a larger global rice bowl$h[electronic resource]
260 $c2021
500 $aAcknowledgements: We would like to thank Dr. Russell Ford (former Head of Agronomic R&D at Sunrice) for providing data for rice in Australia and Dr. P.A.J. van Oort for performing the simulations of yield potential for African countries. We would also like to thank agronomists and extension personnel for their help to collect the survey data from the 32 cropping systems included in this study. This work was supported by the National Key Research and Development Program of China (2016YFD0300210), the Major International (Regional) Joint Research Project of NSFC (32061143038), the Earmarked Fund for the China Agriculture Research System (CARS-01-20), the China Scholarship Council (201706760015), and the China Postdoctoral Science Foundation (2020M682439). We also acknowledge GRISP, RICE CRP, and the Swiss Agency for Development and Cooperation for their nancial support to conduct the MISTIG, MISTIR and CORIGAP surveys, respectively (Grant 681 no. 7F-08412.02).
520 $aAbstract: Future rice systems will need to produce more grain while minimizing the environmental impact. A key question is how to orient agricultural research & development (R&D) programs at national to global scales to maximize the return on investment. Here we assess yield gap and resource-use efficiency (including water, pesticides, nitrogen, labor, and energy) across 32 rice cropping systems, together accounting for 88% of global rice production. We show that achieving high yields and high resource-use efficiencies are not conflicting goals. Most cropping systems have room for increasing yield, resource-use efficiency, or both. In aggregate, current total rice production of these systems can be increased by 36%, and excess nitrogen almost eliminated, by focusing on a relatively small number of cropping systems with large yield gaps and/or poor resource-use efficiencies. This study provides essential strategic insight for prioritizing national and global agricultural R&D investments to ensure adequate rice supply while minimizing negative environmental impact in coming decades.
653 $aENVIRONMENTAL IMPACT
653 $aPROGRAMA ARROZ
653 $aRICE
653 $aSUSTAINABLE INTENSIFICATION
653 $aYIELD GAP
700 1 $aLINQUIST, B.
700 1 $aWILSON, L.
700 1 $aCASSMAN, K.
700 1 $aSTUART, A.
700 1 $aPEDE, V.
700 1 $aMIRO, B.
700 1 $aSAITO, K.
700 1 $aAGUSTIANI, N.
700 1 $aARISTYA, V.
700 1 $aKRISNADI, L.
700 1 $aZANON, A.
700 1 $aHEINEMANN, A.
700 1 $aCARRACELAS, G.
700 1 $aSUBASH, N.
700 1 $aBRAHMANAND, P.
700 1 $aLI, T.
700 1 $aPENG, S.
700 1 $aGRASSINI, P.
773 $tResearch Square, 2021. DOI: https://doi.org/10.21203/rs.3.rs-401904/v1
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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
18/04/2022 |
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Actualizado : |
18/04/2022 |
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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 : |
LEZAMA, F.; PARUELO, J. |
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Afiliación : |
FELIPE LEZAMA, Department of Environmental Systems, Faculty of Agronomy, University of República, Montevideo, Uruguay.; JOSÉ PARUELO, Institute of Ecology and Environmental Sciences, Faculty of Sciences, UDELAR, UY. Department of Quantitative Methods and Information Systems, FAGRO, UY. INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Regional assessment of stocking rate effects on uruguayan rangelands: a ranch-level study. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Rangeland Ecology & Management, 2022, volume 82, pages 58-65. Doi: https://doi.org/10.1016/j.rama.2022.02.005 |
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DOI : |
10.1016/j.rama.2022.02.005 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 27 April 2021 // Revised 9 February 2022 // Accepted 16 February 2022. |
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Contenido : |
We analyzed the variation of plant composition, forage production, and livestock diet across a broad stocking rate gradient on Eastern Hills rangelands of Uruguay. Our approach encompassed five ranches subjected to mixed sheep-cattle grazing and combined field surveys, microhistological fecal analysis, and remote sensing techniques. We hypothesized that selectivity would decrease as stocking rate increased. Vegetation data and fecal samples were obtained in 17 paddocks in 2008. To investigate the role of stocking rate on vegetation, we focused on dominant species and forage type cover. Diet composition was analyzed at forage type level. Annual net primary productivity was estimated for each paddock using the normalized difference vegetation index derived from the MODIS (Moderate Resolution Imaging Spectroradiometer) sensor. We found a clear relationship between the variation in stocking rate and floristic and forage type composition, both suggesting a deterioration of grassland conservation status. Cool season grass cover varied from 25% to 5%, from low to high stocking rates. Dicot cover showed an opposite trend, with values around 15% in the low and moderate stocking levels and reaching 35% on high-stocked paddocks. Diet composition and diet overlap between herbivores also showed clear patterns of response to stocking rate. On the other hand, livestock selectivity interacted with herbivore type. While cattle showed the expected pattern, sheep did not decrease selectivity in winter as stocking rate increased. Contrary to expectations, annual net primary productivity was similar across the different stocking rate levels and the month of maximum productivity was generally March. Our study provides strong evidence of marked rangeland degradation; however, the lack of response in terms of ANPP and the ability of sheep to maintain selectivity under high stocking rates could help to explain the lack of responsiveness in the adoption of generalized stocking adjustments by the ranchers. MenosWe analyzed the variation of plant composition, forage production, and livestock diet across a broad stocking rate gradient on Eastern Hills rangelands of Uruguay. Our approach encompassed five ranches subjected to mixed sheep-cattle grazing and combined field surveys, microhistological fecal analysis, and remote sensing techniques. We hypothesized that selectivity would decrease as stocking rate increased. Vegetation data and fecal samples were obtained in 17 paddocks in 2008. To investigate the role of stocking rate on vegetation, we focused on dominant species and forage type cover. Diet composition was analyzed at forage type level. Annual net primary productivity was estimated for each paddock using the normalized difference vegetation index derived from the MODIS (Moderate Resolution Imaging Spectroradiometer) sensor. We found a clear relationship between the variation in stocking rate and floristic and forage type composition, both suggesting a deterioration of grassland conservation status. Cool season grass cover varied from 25% to 5%, from low to high stocking rates. Dicot cover showed an opposite trend, with values around 15% in the low and moderate stocking levels and reaching 35% on high-stocked paddocks. Diet composition and diet overlap between herbivores also showed clear patterns of response to stocking rate. On the other hand, livestock selectivity interacted with herbivore type. While cattle showed the expected pattern, sheep did not decrease selectivity i... Presentar Todo |
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Palabras claves : |
(NDVI); EASTERN HILLS; FORAGE TYPES; LIVESTOCK DIET; MICROHISTOLOGICAL TECHNIQUE; NORMALIZED DIFFERENCE VEGETATION INDEX; PLANT COMPOSITION. |
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Asunto categoría : |
F40 Ecología vegetal |
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Marc : |
LEADER 02892naa a2200241 a 4500
001 1063033
005 2022-04-18
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1016/j.rama.2022.02.005$2DOI
100 1 $aLEZAMA, F.
245 $aRegional assessment of stocking rate effects on uruguayan rangelands$ba ranch-level study.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 27 April 2021 // Revised 9 February 2022 // Accepted 16 February 2022.
520 $aWe analyzed the variation of plant composition, forage production, and livestock diet across a broad stocking rate gradient on Eastern Hills rangelands of Uruguay. Our approach encompassed five ranches subjected to mixed sheep-cattle grazing and combined field surveys, microhistological fecal analysis, and remote sensing techniques. We hypothesized that selectivity would decrease as stocking rate increased. Vegetation data and fecal samples were obtained in 17 paddocks in 2008. To investigate the role of stocking rate on vegetation, we focused on dominant species and forage type cover. Diet composition was analyzed at forage type level. Annual net primary productivity was estimated for each paddock using the normalized difference vegetation index derived from the MODIS (Moderate Resolution Imaging Spectroradiometer) sensor. We found a clear relationship between the variation in stocking rate and floristic and forage type composition, both suggesting a deterioration of grassland conservation status. Cool season grass cover varied from 25% to 5%, from low to high stocking rates. Dicot cover showed an opposite trend, with values around 15% in the low and moderate stocking levels and reaching 35% on high-stocked paddocks. Diet composition and diet overlap between herbivores also showed clear patterns of response to stocking rate. On the other hand, livestock selectivity interacted with herbivore type. While cattle showed the expected pattern, sheep did not decrease selectivity in winter as stocking rate increased. Contrary to expectations, annual net primary productivity was similar across the different stocking rate levels and the month of maximum productivity was generally March. Our study provides strong evidence of marked rangeland degradation; however, the lack of response in terms of ANPP and the ability of sheep to maintain selectivity under high stocking rates could help to explain the lack of responsiveness in the adoption of generalized stocking adjustments by the ranchers.
653 $a(NDVI)
653 $aEASTERN HILLS
653 $aFORAGE TYPES
653 $aLIVESTOCK DIET
653 $aMICROHISTOLOGICAL TECHNIQUE
653 $aNORMALIZED DIFFERENCE VEGETATION INDEX
653 $aPLANT COMPOSITION
700 1 $aPARUELO, J.
773 $tRangeland Ecology & Management, 2022, volume 82, pages 58-65. Doi: https://doi.org/10.1016/j.rama.2022.02.005
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