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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
21/02/2014 |
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Actualizado : |
11/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
GARCÍA-PRÉCHAC, F.; ERNST, O.; SIRI-PRIETO, G.; TERRA, J.A. |
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Afiliación : |
JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Integrating no-till into crop-pasture rotations in Uruguay: review. |
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Fecha de publicación : |
2004 |
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Fuente / Imprenta : |
Soil & Tillage Research, 2004, v. 77, p. 1-13. |
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DOI : |
10.1016/j.still.2003.12.002 |
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Idioma : |
Inglés |
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Notas : |
Article history:Received 21 February 2003 ; received in revised form 27 November 2003 ; accepted 9 December 2003.
https://doi.org/10.1016/j.still.2003.12.002 |
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Contenido : |
Abstract
Crop pasture rotations (CPR) are unusual around the world but have been the predominant cropping system in Uruguay since the 1960s. Uruguay has a temperate sub-humid climate, 80% of its landscape (16 Mha) is climax grasslands C3 and C4 species. Beef, wool, and dairy are the main commodities. Crops occupy a portion of the remaining 20% land area, primarily on Argiudolls and Vertisols, rotated with seeded grass and legume pastures. Continuous cropping (CC) with conventional tillage (CT) has proven unsustainable due to decreased soil productivity. Seeded pasture periods increased soil productivity. CPR adoption created less variable inter-annual economic results, but soil degradation remained a major concern during the crop cycle using CT. Farmers and technicians became interested in no-till (NT) to reduce erosion and production cost. Currently,
approximately 52% of crop producing farms and 25% of dairy farms have adopted NT. This paper synthesizes research results (mainly from long-term experiments) contrasting CC versus CPR with CT (1960?1990) and NT (from 1990). Soil erosion was reduced more than six times with NT in CC, and almost three times in CPR compared with CC using CT; but combining the use of CPR and NT resulted in the same low erosion rate as under natural pasture. The transition from CT to NT is not always easy. The time between herbicide application to pasture and planting of the first crop of the rotation crop cycle with NT is a critical transition factor to optimize N and water availability, and soil tilth. Chiseling or paraplowing can alleviate plow-pans inherited by NT from previous CT; but higher soil strength at the soil surface under NT contributes to better forage utilization
under grazing. Soil organic carbon (SOC) content in CC decreased with CT, and was maintained with NT only if grain was harvested. In CC systems with harvested forage, SOC decreased even with NT. CPR with NT maintained or increased the original SOC content. The paper concludes with a discussion on the relative sustainability of CC versus CPR with NT. Both are sustainable from the soil quality and productivity standpoints. But compared with CC, CPR is a more economically and climatically buffered system, due to higher diversity. Also, CPR systems are more environmentally sustainable since fuel and agrochemicals usage is reduced approximately 50%. MenosAbstract
Crop pasture rotations (CPR) are unusual around the world but have been the predominant cropping system in Uruguay since the 1960s. Uruguay has a temperate sub-humid climate, 80% of its landscape (16 Mha) is climax grasslands C3 and C4 species. Beef, wool, and dairy are the main commodities. Crops occupy a portion of the remaining 20% land area, primarily on Argiudolls and Vertisols, rotated with seeded grass and legume pastures. Continuous cropping (CC) with conventional tillage (CT) has proven unsustainable due to decreased soil productivity. Seeded pasture periods increased soil productivity. CPR adoption created less variable inter-annual economic results, but soil degradation remained a major concern during the crop cycle using CT. Farmers and technicians became interested in no-till (NT) to reduce erosion and production cost. Currently,
approximately 52% of crop producing farms and 25% of dairy farms have adopted NT. This paper synthesizes research results (mainly from long-term experiments) contrasting CC versus CPR with CT (1960?1990) and NT (from 1990). Soil erosion was reduced more than six times with NT in CC, and almost three times in CPR compared with CC using CT; but combining the use of CPR and NT resulted in the same low erosion rate as under natural pasture. The transition from CT to NT is not always easy. The time between herbicide application to pasture and planting of the first crop of the rotation crop cycle with NT is a critical transition fact... Presentar Todo |
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Thesagro : |
COMPACTACIÓN DEL SUELO; EROSIÓN DEL SUELO; PASTURAS; ROTACION DE CULTIVOS; URUGUAY. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03223naa a2200241 a 4500
001 1032788
005 2019-10-11
008 2004 bl uuuu u00u1 u #d
024 7 $a10.1016/j.still.2003.12.002$2DOI
100 1 $aGARCÍA-PRÉCHAC, F.
245 $aIntegrating no-till into crop-pasture rotations in Uruguay$breview.$h[electronic resource]
260 $c2004
500 $aArticle history:Received 21 February 2003 ; received in revised form 27 November 2003 ; accepted 9 December 2003. https://doi.org/10.1016/j.still.2003.12.002
520 $aAbstract Crop pasture rotations (CPR) are unusual around the world but have been the predominant cropping system in Uruguay since the 1960s. Uruguay has a temperate sub-humid climate, 80% of its landscape (16 Mha) is climax grasslands C3 and C4 species. Beef, wool, and dairy are the main commodities. Crops occupy a portion of the remaining 20% land area, primarily on Argiudolls and Vertisols, rotated with seeded grass and legume pastures. Continuous cropping (CC) with conventional tillage (CT) has proven unsustainable due to decreased soil productivity. Seeded pasture periods increased soil productivity. CPR adoption created less variable inter-annual economic results, but soil degradation remained a major concern during the crop cycle using CT. Farmers and technicians became interested in no-till (NT) to reduce erosion and production cost. Currently, approximately 52% of crop producing farms and 25% of dairy farms have adopted NT. This paper synthesizes research results (mainly from long-term experiments) contrasting CC versus CPR with CT (1960?1990) and NT (from 1990). Soil erosion was reduced more than six times with NT in CC, and almost three times in CPR compared with CC using CT; but combining the use of CPR and NT resulted in the same low erosion rate as under natural pasture. The transition from CT to NT is not always easy. The time between herbicide application to pasture and planting of the first crop of the rotation crop cycle with NT is a critical transition factor to optimize N and water availability, and soil tilth. Chiseling or paraplowing can alleviate plow-pans inherited by NT from previous CT; but higher soil strength at the soil surface under NT contributes to better forage utilization under grazing. Soil organic carbon (SOC) content in CC decreased with CT, and was maintained with NT only if grain was harvested. In CC systems with harvested forage, SOC decreased even with NT. CPR with NT maintained or increased the original SOC content. The paper concludes with a discussion on the relative sustainability of CC versus CPR with NT. Both are sustainable from the soil quality and productivity standpoints. But compared with CC, CPR is a more economically and climatically buffered system, due to higher diversity. Also, CPR systems are more environmentally sustainable since fuel and agrochemicals usage is reduced approximately 50%.
650 $aCOMPACTACIÓN DEL SUELO
650 $aEROSIÓN DEL SUELO
650 $aPASTURAS
650 $aROTACION DE CULTIVOS
650 $aURUGUAY
700 1 $aERNST, O.
700 1 $aSIRI-PRIETO, G.
700 1 $aTERRA, J.A.
773 $tSoil & Tillage Research, 2004$gv. 77, p. 1-13.
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Registro original : |
INIA Treinta y Tres (TT) |
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
23/01/2020 |
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Actualizado : |
23/01/2020 |
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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 : |
CABRERA, A.; FRESIA, P.; BERNÁ, L.; SILVEIRA, C.S.; MACÍAS-RIOSECO, M.; AREVALO, A.P.; CRISPO, M.; PRITSCH, O.; RIET-CORREA, F.; GIANNITTI, F.; GIANNITTI, F.; FRANCIA, M.E.; ROBELLO, C. |
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Afiliación : |
ANDRÉS CABRERA, Laboratory of Host Pathogen Interactions-UBM, Institut Pasteur de Montevideo, Uruguay; PABLO FRESIA, Bioinformatics Unit, Institut Pasteur de Montevideo, Montevideo, Uruguay; LUCÍA BERNÁ, Laboratory of Host Pathogen Interactions-UBM, Institut Pasteur de Montevideo, Montevideo, Uruguay; CAROLINE DA SILVA SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MELISSA MACÍAS RIOSECO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANA PAULA AREVALO, Transgenic and Experimental Animal Unit, Institut Pasteur de Montevideo, Montevideo, Uruguay; MARTINA CRISPO, Transgenic and Experimental Animal Unit, Institut Pasteur de Montevideo, Montevideo, Uruguay; OTTO PRITSCH, Immunovirology Unit, Institut Pasteur de Montevideo, Montevideo Uruguay; Departamento de Inmunobiología, Facultad de Medicina, Universidad de la República, Montevideo Uruguay; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, Saint Paul MN USA; MARIA E. FRANCIA, Laboratory of Host Pathogen Interactions-UBM, Institut Pasteur Montevideo, Uruguay; Laboratory of Apicomplexan Biology, Institut Pasteur Montevideo, Uruguay;Dpto. Parasitologia y Micologia, Facultad de Medicina, Universidad de la República, Uruguay; CARLOS ROBELLO, Laboratory of Host Pathogen Interactions-UBM, Institut Pasteur de Montevideo, Montevideo Uruguay; Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo Uruguay. |
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Título : |
Isolation and molecular characterization of four novel Neospora caninum strains. |
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Complemento del título : |
Genetics, Evolution, and Phylogeny - Short Communication. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Parasitology Research, 1 December 2019, Volume 118, Issue 12, Pages 3535-3542. Doi: 10.1007/s00436-019-06474-9 |
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ISSN : |
0932-0113 |
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DOI : |
10.1007/s00436-019-06474-9 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 11 April 2019 / Accepted: 24 September 2019 / Published online: 7 November 2019.
Funding Sponsor: Agencia Nacional de Investigación e Innovación (ANII).
Funding Text: This project was funded by grant FSSA_X_2014_1_106026 from the Uruguayan National Agency for Research and Innovation (ANII). A.C., C.S., and M.M.R. are supported by doctoral fellowships from ANII. M.E.F. is supported by a Calmette & Yersin fellowship from the Institut Pasteur International Network (RIIP). M.C., L.B., P.F., F.G., F.R.-C., O.P., M.E.F., and C.R. are researchers from the Sistema Nacional de Investigadores (SNI). |
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Contenido : |
ABSTRACT.
Neospora caninum causes neosporosis, a leading cause of bovine abortion worldwide. Uruguay is a developing economy in South America that produces milk to feed seven times its population annually. Naturally, dairy production is paramount to the country?s economy, and bovine reproductive failure impacts it profoundly. Recent studies demonstrated that the vast majority of infectious abortions in dairy cows are caused by N. caninum. To delve into the local situation and contextualize it within the international standing, we set out to characterize the Uruguayan N. caninum strains. For this, we isolated four distinct strains and determined by microsatellite typing that these represent three unique genetic lineages, distinct from those reported previously in the region or elsewhere. An unbiased analysis of the current worldwide genetic diversity of N. caninum strains known, whereby six typing clusters can be resolved, revealed that three of the four Uruguayan strains group closely with regional strains from Argentina and Brazil. The remaining strain groups in an unrelated genetic cluster, suggesting multiple origins of the local strains. Microsatellite typing of N. caninum DNA from fetuses opportunistically collected from local dairy farms correlated more often with one of the isolates. Overall, our results contribute to further understanding of genetic diversity among strains of N. caninum both regionally and worldwide.
© 2019, Springer-Verlag GmbH Germany, part of Springer Nature. MenosABSTRACT.
Neospora caninum causes neosporosis, a leading cause of bovine abortion worldwide. Uruguay is a developing economy in South America that produces milk to feed seven times its population annually. Naturally, dairy production is paramount to the country?s economy, and bovine reproductive failure impacts it profoundly. Recent studies demonstrated that the vast majority of infectious abortions in dairy cows are caused by N. caninum. To delve into the local situation and contextualize it within the international standing, we set out to characterize the Uruguayan N. caninum strains. For this, we isolated four distinct strains and determined by microsatellite typing that these represent three unique genetic lineages, distinct from those reported previously in the region or elsewhere. An unbiased analysis of the current worldwide genetic diversity of N. caninum strains known, whereby six typing clusters can be resolved, revealed that three of the four Uruguayan strains group closely with regional strains from Argentina and Brazil. The remaining strain groups in an unrelated genetic cluster, suggesting multiple origins of the local strains. Microsatellite typing of N. caninum DNA from fetuses opportunistically collected from local dairy farms correlated more often with one of the isolates. Overall, our results contribute to further understanding of genetic diversity among strains of N. caninum both regionally and worldwide.
© 2019, Springer-Verlag GmbH Germany, part of Spr... Presentar Todo |
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Palabras claves : |
Animal health; Apicomplexa; Bovine abortion; Genetic diversity; Microsatellite; Neospora; PLATAFORMA SALUD ANIMAL. |
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Asunto categoría : |
L73 Enfermedades de los animales |
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Marc : |
LEADER 03240naa a2200385 a 4500
001 1060674
005 2020-01-23
008 2019 bl uuuu u00u1 u #d
022 $a0932-0113
024 7 $a10.1007/s00436-019-06474-9$2DOI
100 1 $aCABRERA, A.
245 $aIsolation and molecular characterization of four novel Neospora caninum strains.$h[electronic resource]
260 $c2019
500 $aArticle history: Received: 11 April 2019 / Accepted: 24 September 2019 / Published online: 7 November 2019. Funding Sponsor: Agencia Nacional de Investigación e Innovación (ANII). Funding Text: This project was funded by grant FSSA_X_2014_1_106026 from the Uruguayan National Agency for Research and Innovation (ANII). A.C., C.S., and M.M.R. are supported by doctoral fellowships from ANII. M.E.F. is supported by a Calmette & Yersin fellowship from the Institut Pasteur International Network (RIIP). M.C., L.B., P.F., F.G., F.R.-C., O.P., M.E.F., and C.R. are researchers from the Sistema Nacional de Investigadores (SNI).
520 $aABSTRACT. Neospora caninum causes neosporosis, a leading cause of bovine abortion worldwide. Uruguay is a developing economy in South America that produces milk to feed seven times its population annually. Naturally, dairy production is paramount to the country?s economy, and bovine reproductive failure impacts it profoundly. Recent studies demonstrated that the vast majority of infectious abortions in dairy cows are caused by N. caninum. To delve into the local situation and contextualize it within the international standing, we set out to characterize the Uruguayan N. caninum strains. For this, we isolated four distinct strains and determined by microsatellite typing that these represent three unique genetic lineages, distinct from those reported previously in the region or elsewhere. An unbiased analysis of the current worldwide genetic diversity of N. caninum strains known, whereby six typing clusters can be resolved, revealed that three of the four Uruguayan strains group closely with regional strains from Argentina and Brazil. The remaining strain groups in an unrelated genetic cluster, suggesting multiple origins of the local strains. Microsatellite typing of N. caninum DNA from fetuses opportunistically collected from local dairy farms correlated more often with one of the isolates. Overall, our results contribute to further understanding of genetic diversity among strains of N. caninum both regionally and worldwide. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
653 $aAnimal health
653 $aApicomplexa
653 $aBovine abortion
653 $aGenetic diversity
653 $aMicrosatellite
653 $aNeospora
653 $aPLATAFORMA SALUD ANIMAL
700 1 $aFRESIA, P.
700 1 $aBERNÁ, L.
700 1 $aSILVEIRA, C.S.
700 1 $aMACÍAS-RIOSECO, M.
700 1 $aAREVALO, A.P.
700 1 $aCRISPO, M.
700 1 $aPRITSCH, O.
700 1 $aRIET-CORREA, F.
700 1 $aGIANNITTI, F.
700 1 $aGIANNITTI, F.
700 1 $aFRANCIA, M.E.
700 1 $aROBELLO, C.
773 $tParasitology Research, 1 December 2019, Volume 118, Issue 12, Pages 3535-3542. Doi: 10.1007/s00436-019-06474-9
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