Changes in Weed Communities of Spring Wheat Crops of Buenos Aires Province of Argentina
During 2004 to 2008, weed surveys were conducted in 373 wheat fields of two different cropped areas (southwest [SW] and southeast [SE]) of the southern region of Buenos Aires Province of Argentina where different weed communities were expected because of changes in cropping practices over time, incl...
| Main Authors: | , , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://www.cambridge.org/core/journals/weed-science/article/changes-in-weed-communities-of-spring-wheat-crops-of-buenos-aires-province-of-argentina/06B6CA62B8CA497A6321BCFEA7A43B00 http://hdl.handle.net/20.500.12123/2448 https://doi.org/10.1614/WS-D-12-00141.1 |
| _version_ | 1855483057919754240 |
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| author | Scursoni, Julio Alejandro Gigon, Ramon Martín, Andrés Nelson Vigna, Mario Raul Leguizamón, Eduardo Sixto Istilart, Carolina Maria Lopez, Ricardo |
| author_browse | Gigon, Ramon Istilart, Carolina Maria Leguizamón, Eduardo Sixto Lopez, Ricardo Martín, Andrés Nelson Scursoni, Julio Alejandro Vigna, Mario Raul |
| author_facet | Scursoni, Julio Alejandro Gigon, Ramon Martín, Andrés Nelson Vigna, Mario Raul Leguizamón, Eduardo Sixto Istilart, Carolina Maria Lopez, Ricardo |
| author_sort | Scursoni, Julio Alejandro |
| collection | INTA Digital |
| description | During 2004 to 2008, weed surveys were conducted in 373 wheat fields of two different cropped areas (southwest [SW] and southeast [SE]) of the southern region of Buenos Aires Province of Argentina where different weed communities were expected because of changes in cropping practices over time, including tillage, crop sequence, fertilizers, and herbicides applied. Weed communities differed between regions, with greater numbers of native species for the SW. Weed community diversity was also greater for the SW region, probably due to the more diverse land use that resulted in greater landscape heterogeneity. Rush skeletonweed, sand rocket, yellow starthistle and turnipseed occurred at higher constancy (proportion of fields in which a given species is present) in the SW region, whereas common chickweed, false bishop's weed, corn speedwell, and common lambsquarters were present more frequently in the SE region. Compared with the 1982 survey, constancy of weeds increased, but those species with high constancy in 1982 were also with high constancy in the recent surveys. Diversity (species richness) was greater in conventional than in a no-tillage system. The constancy of Italian ryegrass, sand rocket, and yellow starthistle was lower under no-till than conventional tillage. Surveys allow identification of changes in weed community related to different agricultural systems. Rotation of crops and livestock avoid the homogenization of the environment at the landscape level. Management strategies will be necessary to prevent the increase of weeds populations' size, preserving plant diversity and the properties of the agroecosystem. |
| format | Artículo |
| id | INTA2448 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA24482018-07-04T15:12:50Z Changes in Weed Communities of Spring Wheat Crops of Buenos Aires Province of Argentina Scursoni, Julio Alejandro Gigon, Ramon Martín, Andrés Nelson Vigna, Mario Raul Leguizamón, Eduardo Sixto Istilart, Carolina Maria Lopez, Ricardo Malezas Trigo Cultivos de Primavera Weeds Wheat Spring Crops Buenos Aires During 2004 to 2008, weed surveys were conducted in 373 wheat fields of two different cropped areas (southwest [SW] and southeast [SE]) of the southern region of Buenos Aires Province of Argentina where different weed communities were expected because of changes in cropping practices over time, including tillage, crop sequence, fertilizers, and herbicides applied. Weed communities differed between regions, with greater numbers of native species for the SW. Weed community diversity was also greater for the SW region, probably due to the more diverse land use that resulted in greater landscape heterogeneity. Rush skeletonweed, sand rocket, yellow starthistle and turnipseed occurred at higher constancy (proportion of fields in which a given species is present) in the SW region, whereas common chickweed, false bishop's weed, corn speedwell, and common lambsquarters were present more frequently in the SE region. Compared with the 1982 survey, constancy of weeds increased, but those species with high constancy in 1982 were also with high constancy in the recent surveys. Diversity (species richness) was greater in conventional than in a no-tillage system. The constancy of Italian ryegrass, sand rocket, and yellow starthistle was lower under no-till than conventional tillage. Surveys allow identification of changes in weed community related to different agricultural systems. Rotation of crops and livestock avoid the homogenization of the environment at the landscape level. Management strategies will be necessary to prevent the increase of weeds populations' size, preserving plant diversity and the properties of the agroecosystem. EEA Bordenave Fil: Scursoni, Julio Alejandro. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina Fil: Gigón, Ramón. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina Fil: Martin, Andrés Nelson. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina. Fil: Vigna, Mario Raúl. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina Fil: Leguizamon, Eduardo Sixto. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias. Cátedra de Malezas; Argentina Fil: Istilart, Carolina Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Chacra Experimental Integrada Barrow; Argentina Fil: López, Ricardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina 2018-05-22T13:33:57Z 2018-05-22T13:33:57Z 2014-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.cambridge.org/core/journals/weed-science/article/changes-in-weed-communities-of-spring-wheat-crops-of-buenos-aires-province-of-argentina/06B6CA62B8CA497A6321BCFEA7A43B00 http://hdl.handle.net/20.500.12123/2448 0043-1745 1550-2759 https://doi.org/10.1614/WS-D-12-00141.1 eng info:eu-repo/semantics/restrictedAccess application/pdf Buenos Aires (province) Weed science 62 (1) : 51-62. (March 2014) |
| spellingShingle | Malezas Trigo Cultivos de Primavera Weeds Wheat Spring Crops Buenos Aires Scursoni, Julio Alejandro Gigon, Ramon Martín, Andrés Nelson Vigna, Mario Raul Leguizamón, Eduardo Sixto Istilart, Carolina Maria Lopez, Ricardo Changes in Weed Communities of Spring Wheat Crops of Buenos Aires Province of Argentina |
| title | Changes in Weed Communities of Spring Wheat Crops of Buenos Aires Province of Argentina |
| title_full | Changes in Weed Communities of Spring Wheat Crops of Buenos Aires Province of Argentina |
| title_fullStr | Changes in Weed Communities of Spring Wheat Crops of Buenos Aires Province of Argentina |
| title_full_unstemmed | Changes in Weed Communities of Spring Wheat Crops of Buenos Aires Province of Argentina |
| title_short | Changes in Weed Communities of Spring Wheat Crops of Buenos Aires Province of Argentina |
| title_sort | changes in weed communities of spring wheat crops of buenos aires province of argentina |
| topic | Malezas Trigo Cultivos de Primavera Weeds Wheat Spring Crops Buenos Aires |
| url | https://www.cambridge.org/core/journals/weed-science/article/changes-in-weed-communities-of-spring-wheat-crops-of-buenos-aires-province-of-argentina/06B6CA62B8CA497A6321BCFEA7A43B00 http://hdl.handle.net/20.500.12123/2448 https://doi.org/10.1614/WS-D-12-00141.1 |
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