Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.)
Alfalfa is a forage species widely used in Uruguay in intensive livestock and dairy farming. Supplementary irrigation makes it possible to mitigate the negative effects of climate change, increasing and stabilizing the productivity of pastures. It is necessary to evaluate its joint effect with grazi...
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| Định dạng: | article |
| Ngôn ngữ: | Tiếng Anh |
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2024
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| Truy cập trực tuyến: | https://hdl.handle.net/20.500.12381/3396 https://doi.org/10.31285/AGRO.28.1422 |
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| _version_ | 1868890190033977344 |
|---|---|
| author | Puppo Collazo, Lucia |
| author2 | Hayashi, Raquel Beretta, Andres Morales, Pablo |
| author2_role | author author author |
| author_browse | Beretta, Andres Hayashi, Raquel Morales, Pablo Puppo Collazo, Lucia |
| author_facet | Puppo Collazo, Lucia Hayashi, Raquel Beretta, Andres Morales, Pablo |
| author_role | author |
| collection | REDI |
| dc.creator.none.fl_str_mv | Puppo Collazo, Lucia Hayashi, Raquel Beretta, Andres Morales, Pablo |
| dc.date.none.fl_str_mv | 2024-01-29T14:01:06Z 2024-01 |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/20.500.12381/3396 FSA_1_2018_152514 https://doi.org/10.31285/AGRO.28.1422 |
| dc.language.none.fl_str_mv | eng |
| dc.relation.none.fl_str_mv | https://hdl.handle.net/20.500.12381/3395 https://hdl.handle.net/20.500.12381/3397 https://hdl.handle.net/20.500.12381/3398 https://hdl.handle.net/20.500.12381/3399 https://hdl.handle.net/20.500.12381/3400 https://hdl.handle.net/20.500.12381/3401 https://hdl.handle.net/20.500.12381/3402 https://hdl.handle.net/20.500.12381/3403 |
| dc.rights.none.fl_str_mv | Acceso abierto info:eu-repo/semantics/openAccess Reconocimiento 4.0 Internacional. (CC BY) |
| dc.source.none.fl_str_mv | reponame:REDI instname:Agencia Nacional de Investigación e Innovación instacron:Agencia Nacional de Investigación e Innovación |
| dc.subject.none.fl_str_mv | Productividad forraje Riego pasturas Umbral de riego Ciencias Agrícolas Agricultura, Silvicultura y Pesca Ciencias del Suelo Agricultura |
| dc.title.none.fl_str_mv | Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.) |
| dc.type.none.fl_str_mv | Artículo info:eu-repo/semantics/article Publicado info:eu-repo/semantics/publishedVersion |
| description | Alfalfa is a forage species widely used in Uruguay in intensive livestock and dairy farming. Supplementary irrigation makes it possible to mitigate the negative effects of climate change, increasing and stabilizing the productivity of pastures. It is necessary to evaluate its joint effect with grazing. Two irrigation thresholds were evaluated, with entry of animals. The treatments were: frequent irrigation (30% depleted), spaced irrigation (65% depleted) and rainfed. The experimental design was complete randomized blocks, and 30 months of evaluation. The average annual yield of irrigated alfalfa was 25,333 and 23,177 kg DM ha-1, first and second year of evaluation, respectively. The accumulated production (30 months) did not show a significant difference between the irrigated treatments, but it did between irrigated and rainfed. In the last summer-autumn, the yield of all treatments fell to 8660 kg DM ha-1 (irrigated) and 1756 kg DM ha-1 (rainfed). Seasonal productivity indicates the con-venience of irrigating alfalfa in summer since the yield increased 43% in the second year and 4.3 times more in the last year. Furthermore, after the extreme summer drought, in the following autumn, the irrigated treatments yielded 7 times more than the rainfed. Management with spaced irrigation and irrigation depth that do not return the soil to its field capacity increases the effectiveness of precipitation, saving water and energy allocated to irrigation. The apparent density increased towards the end of the experiment as a result of grazing, however, there was no difference between the evaluated irrigation managements. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_c7ebe3bcd487e7783ef97968bba8a32b |
| identifier_str_mv | FSA_1_2018_152514 |
| instacron_str | Agencia Nacional de Investigación e Innovación |
| institution | Agencia Nacional de Investigación e Innovación |
| instname_str | Agencia Nacional de Investigación e Innovación |
| language | eng |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:redi.anii.org.uy:20.500.12381/3396 |
| publishDate | 2024 |
| publishDateSort | 2024 |
| reponame_str | REDI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Acceso abierto Reconocimiento 4.0 Internacional. (CC BY) |
| spelling | Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.)Puppo Collazo, LuciaHayashi, RaquelBeretta, AndresMorales, PabloProductividad forrajeRiego pasturasUmbral de riegoCiencias AgrícolasAgricultura, Silvicultura y PescaCiencias del SueloAgriculturaAlfalfa is a forage species widely used in Uruguay in intensive livestock and dairy farming. Supplementary irrigation makes it possible to mitigate the negative effects of climate change, increasing and stabilizing the productivity of pastures. It is necessary to evaluate its joint effect with grazing. Two irrigation thresholds were evaluated, with entry of animals. The treatments were: frequent irrigation (30% depleted), spaced irrigation (65% depleted) and rainfed. The experimental design was complete randomized blocks, and 30 months of evaluation. The average annual yield of irrigated alfalfa was 25,333 and 23,177 kg DM ha-1, first and second year of evaluation, respectively. The accumulated production (30 months) did not show a significant difference between the irrigated treatments, but it did between irrigated and rainfed. In the last summer-autumn, the yield of all treatments fell to 8660 kg DM ha-1 (irrigated) and 1756 kg DM ha-1 (rainfed). Seasonal productivity indicates the con-venience of irrigating alfalfa in summer since the yield increased 43% in the second year and 4.3 times more in the last year. Furthermore, after the extreme summer drought, in the following autumn, the irrigated treatments yielded 7 times more than the rainfed. Management with spaced irrigation and irrigation depth that do not return the soil to its field capacity increases the effectiveness of precipitation, saving water and energy allocated to irrigation. The apparent density increased towards the end of the experiment as a result of grazing, however, there was no difference between the evaluated irrigation managements.Agencia Nacional de Investigación e InnovaciónMinisterio de Ganadería, Agricultura y PescaInstituto Nacional de Investigación Agropecuaria2024-01-29T14:01:06Z2024-01Artículoinfo:eu-repo/semantics/articlePublicadoinfo:eu-repo/semantics/publishedVersionhttps://hdl.handle.net/20.500.12381/3396FSA_1_2018_152514https://doi.org/10.31285/AGRO.28.1422reponame:REDIinstname:Agencia Nacional de Investigación e Innovacióninstacron:Agencia Nacional de Investigación e Innovaciónenghttps://hdl.handle.net/20.500.12381/3395https://hdl.handle.net/20.500.12381/3397https://hdl.handle.net/20.500.12381/3398https://hdl.handle.net/20.500.12381/3399https://hdl.handle.net/20.500.12381/3400https://hdl.handle.net/20.500.12381/3401https://hdl.handle.net/20.500.12381/3402https://hdl.handle.net/20.500.12381/3403Acceso abiertoinfo:eu-repo/semantics/openAccessReconocimiento 4.0 Internacional. (CC BY)oai:redi.anii.org.uy:20.500.12381/33962026-06-16T05:03:11Z |
| spellingShingle | Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.) Puppo Collazo, Lucia Productividad forraje Riego pasturas Umbral de riego Ciencias Agrícolas Agricultura, Silvicultura y Pesca Ciencias del Suelo Agricultura |
| status_str | publishedVersion |
| title | Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.) |
| title_full | Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.) |
| title_fullStr | Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.) |
| title_full_unstemmed | Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.) |
| title_short | Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.) |
| title_sort | Effect of irrigation and grazing on the production of an alfalfa pasture (Medicago sativa L.) |
| topic | Productividad forraje Riego pasturas Umbral de riego Ciencias Agrícolas Agricultura, Silvicultura y Pesca Ciencias del Suelo Agricultura |
| url | https://hdl.handle.net/20.500.12381/3396 https://doi.org/10.31285/AGRO.28.1422 |