Water table depth affects persistence and productivity of alfalfa in Central Argentina
Alfalfa (Medicago sativa L.) is one of the most sown perennial legumes in the world. Water table depth can be both an opportunity and a threat for this crop. In this study we analyzed 20 years of field experimental data taken in Rafaela (Argentina) to study the impact of water table depth on product...
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| Format: | Artículo |
| Language: | Inglés |
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Elsevier
2019
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/4541 https://www.sciencedirect.com/science/article/pii/S0378429018316356 https://doi.org/10.1016/j.fcr.2019.02.018 |
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| author | Berhongaray, Gonzalo Basanta, Maria Jauregui, José Martín |
| author_browse | Basanta, Maria Berhongaray, Gonzalo Jauregui, José Martín |
| author_facet | Berhongaray, Gonzalo Basanta, Maria Jauregui, José Martín |
| author_sort | Berhongaray, Gonzalo |
| collection | INTA Digital |
| description | Alfalfa (Medicago sativa L.) is one of the most sown perennial legumes in the world. Water table depth can be both an opportunity and a threat for this crop. In this study we analyzed 20 years of field experimental data taken in Rafaela (Argentina) to study the impact of water table depth on productivity and persistence (plant cover; %) of alfalfa. The average 4-year cumulative above-ground productivity of different alfalfa genotypes was 51.8 Mg DM ha−1, with a mean final persistence of 54%. Water table depth explained 49% of the variance for productivity and 47% of that of persistence, and maximum productivity and persistence were observed when the water table depth was below 4 m depth. Our results indicated that there was a negative impact of shallow water tables on alfalfa production under rain-fed production conditions. These results could be used to inform management decisions and crop simulation models. |
| format | Artículo |
| id | INTA4541 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA45412025-05-09T11:40:19Z Water table depth affects persistence and productivity of alfalfa in Central Argentina Berhongaray, Gonzalo Basanta, Maria Jauregui, José Martín Medicago Sativa Agua Producción Capa Freática Water Production Groundwater Table Alfalfa Argentina Alfalfa (Medicago sativa L.) is one of the most sown perennial legumes in the world. Water table depth can be both an opportunity and a threat for this crop. In this study we analyzed 20 years of field experimental data taken in Rafaela (Argentina) to study the impact of water table depth on productivity and persistence (plant cover; %) of alfalfa. The average 4-year cumulative above-ground productivity of different alfalfa genotypes was 51.8 Mg DM ha−1, with a mean final persistence of 54%. Water table depth explained 49% of the variance for productivity and 47% of that of persistence, and maximum productivity and persistence were observed when the water table depth was below 4 m depth. Our results indicated that there was a negative impact of shallow water tables on alfalfa production under rain-fed production conditions. These results could be used to inform management decisions and crop simulation models. EEA Rafaela Fil: Berhongaray, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina Fil: Basanta, Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Jauregui, José Martín. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina 2019-03-07T12:06:33Z 2019-03-07T12:06:33Z 2019-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/4541 https://www.sciencedirect.com/science/article/pii/S0378429018316356 0378-4290 1872-6852 https://doi.org/10.1016/j.fcr.2019.02.018 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Field Crops Research 235 : 54-58 (April 2019) |
| spellingShingle | Medicago Sativa Agua Producción Capa Freática Water Production Groundwater Table Alfalfa Argentina Berhongaray, Gonzalo Basanta, Maria Jauregui, José Martín Water table depth affects persistence and productivity of alfalfa in Central Argentina |
| title | Water table depth affects persistence and productivity of alfalfa in Central Argentina |
| title_full | Water table depth affects persistence and productivity of alfalfa in Central Argentina |
| title_fullStr | Water table depth affects persistence and productivity of alfalfa in Central Argentina |
| title_full_unstemmed | Water table depth affects persistence and productivity of alfalfa in Central Argentina |
| title_short | Water table depth affects persistence and productivity of alfalfa in Central Argentina |
| title_sort | water table depth affects persistence and productivity of alfalfa in central argentina |
| topic | Medicago Sativa Agua Producción Capa Freática Water Production Groundwater Table Alfalfa Argentina |
| url | http://hdl.handle.net/20.500.12123/4541 https://www.sciencedirect.com/science/article/pii/S0378429018316356 https://doi.org/10.1016/j.fcr.2019.02.018 |
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