Persistence of long-term effects of phosphate fertilization and legume introduction in grasslands of Uruguay

In natural grasslands (NG) of Uruguay the introduction of legumes and P fertilization (NG+LP) prevents nutritional restrictions, but the long-term effects on soil and pasture are little known. To evaluate its long-term effects, a previous experiment was used, which involved the introduction of Lotus...

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Autores principales: del Pino Machado, Amabelia, Lezama, F., Pezzani, F., Parodi, G.
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agropecuarias 2021
Materias:
nutrientes en plantas
micorrizas
siembra en cobertura
producción primaria neta aérea
diversidad
nutrients in plant
mycorrhiza
reseeding
above ground net primary
diversity
Acceso en línea:https://revistas.unc.edu.ar/index.php/agris/article/view/26856
Aporte de:
AgriScientia de Universidad Nacional de Córdoba
id I10-R352-article-26856
record_format ojs
spelling I10-R352-article-268562024-06-18T19:25:38Z Persistence of long-term effects of phosphate fertilization and legume introduction in grasslands of Uruguay Persistencia de efectos a largo plazo de la fertilización fosfatada y la introducción de leguminosas en pastizales del Uruguay del Pino Machado, Amabelia Lezama, F. Pezzani, F. Parodi, G. nutrientes en plantas micorrizas siembra en cobertura producción primaria neta aérea diversidad nutrients in plant mycorrhiza reseeding above ground net primary diversity In natural grasslands (NG) of Uruguay the introduction of legumes and P fertilization (NG+LP) prevents nutritional restrictions, but the long-term effects on soil and pasture are little known. To evaluate its long-term effects, a previous experiment was used, which involved the introduction of Lotus corniculatus and phosphate fertilisation with a control treatment of NG (1994 -1999). Between 2013 and 2015 the aboveground net primary production (ANPP), plant nutrient content, floristic composition and diversity were determined. In the soil, pH, organic C content, available P and organic P were analyzed. The mycorrhizal colonization of two native grasses was evaluated. The NG+LP soil presented higher content of available P, but there were not differences in organic  C. Although ANPP was similar, the forage P content was higher in of Lotus corniculatus compared to NG, while the mycorrhizal colonization was higherin NG. Floristic composition and diversity did not differ. It is concluded that, although in the long term the ANPP increase was not sustained in the NG+LP treatment, there was an improvement in quality of the forage, due to its higher P content. However, there was not any effect on provision of key ecosystem services, such as species diversity. En el campo natural (CN) de Uruguay la introducción de leguminosas con fertilización fosfatada (CN+LP) evita restricciones nutricionales, pero son poco conocidos sus efectos sobre el suelo y la pastura. Para evaluar estos efectos en el largo plazo se utilizó un experimento previo de introducción de Lotus corniculatus y fertilización fosfatada con un tratamiento testigo de CN (1995-2002). Entre 2013 y 2015 se determinó la producción primaria neta aérea (PPNA), contenido de nutrientes de la planta, composición y diversidad florística. En el suelo se analizó pH, contenido de C orgánico, P disponible y orgánico. En dos gramíneas nativas se  evaluó la colonización micorrícica. El suelo CN+LP presentó mayor contenido de P disponible, pero no hubo diferencias en C orgánico. Aunque la PPNA fue similar, el contenido de P del forraje fue mayor en CN+LP respecto a CN, mientras que la micorrización fue mayor en CN. La composición florística y la diversidad no difirieron. Se concluye que, aunque no se mantuvieron las ventajas productivas de CN+LP en PPNA, hubo una mejora en la calidad del forraje debido a su mayor contenido de P. Sin embargo, no hubo efectos en servicios ecosistémicos claves  como la diversidad de especies. Facultad de Ciencias Agropecuarias 2021-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion text/html application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/26856 10.31047/1668.298x.v38.n1.26856 AgriScientia; Vol. 38 No. 1 (2021): ; 99-109 AgriScientia; Vol. 38 Núm. 1 (2021): ; 99-109 1668-298X 10.31047/1668.298x.v38.n1 spa https://revistas.unc.edu.ar/index.php/agris/article/view/26856/34967 https://revistas.unc.edu.ar/index.php/agris/article/view/26856/34001 Derechos de autor 2021 Amabelia del Pino Machado, F. Lezama, F. Pezzani, G. Parodi https://creativecommons.org/licenses/by-sa/4.0
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-352
container_title_str AgriScientia
language Español
format Artículo revista
topic nutrientes en plantas
micorrizas
siembra en cobertura
producción primaria neta aérea
diversidad
nutrients in plant
mycorrhiza
reseeding
above ground net primary
diversity
spellingShingle nutrientes en plantas
micorrizas
siembra en cobertura
producción primaria neta aérea
diversidad
nutrients in plant
mycorrhiza
reseeding
above ground net primary
diversity
del Pino Machado, Amabelia
Lezama, F.
Pezzani, F.
Parodi, G.
Persistence of long-term effects of phosphate fertilization and legume introduction in grasslands of Uruguay
topic_facet nutrientes en plantas
micorrizas
siembra en cobertura
producción primaria neta aérea
diversidad
nutrients in plant
mycorrhiza
reseeding
above ground net primary
diversity
author del Pino Machado, Amabelia
Lezama, F.
Pezzani, F.
Parodi, G.
author_facet del Pino Machado, Amabelia
Lezama, F.
Pezzani, F.
Parodi, G.
author_sort del Pino Machado, Amabelia
title Persistence of long-term effects of phosphate fertilization and legume introduction in grasslands of Uruguay
title_short Persistence of long-term effects of phosphate fertilization and legume introduction in grasslands of Uruguay
title_full Persistence of long-term effects of phosphate fertilization and legume introduction in grasslands of Uruguay
title_fullStr Persistence of long-term effects of phosphate fertilization and legume introduction in grasslands of Uruguay
title_full_unstemmed Persistence of long-term effects of phosphate fertilization and legume introduction in grasslands of Uruguay
title_sort persistence of long-term effects of phosphate fertilization and legume introduction in grasslands of uruguay
description In natural grasslands (NG) of Uruguay the introduction of legumes and P fertilization (NG+LP) prevents nutritional restrictions, but the long-term effects on soil and pasture are little known. To evaluate its long-term effects, a previous experiment was used, which involved the introduction of Lotus corniculatus and phosphate fertilisation with a control treatment of NG (1994 -1999). Between 2013 and 2015 the aboveground net primary production (ANPP), plant nutrient content, floristic composition and diversity were determined. In the soil, pH, organic C content, available P and organic P were analyzed. The mycorrhizal colonization of two native grasses was evaluated. The NG+LP soil presented higher content of available P, but there were not differences in organic  C. Although ANPP was similar, the forage P content was higher in of Lotus corniculatus compared to NG, while the mycorrhizal colonization was higherin NG. Floristic composition and diversity did not differ. It is concluded that, although in the long term the ANPP increase was not sustained in the NG+LP treatment, there was an improvement in quality of the forage, due to its higher P content. However, there was not any effect on provision of key ecosystem services, such as species diversity.
publisher Facultad de Ciencias Agropecuarias
publishDate 2021
url https://revistas.unc.edu.ar/index.php/agris/article/view/26856
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AT lezamaf persistenceoflongtermeffectsofphosphatefertilizationandlegumeintroductioningrasslandsofuruguay
AT pezzanif persistenceoflongtermeffectsofphosphatefertilizationandlegumeintroductioningrasslandsofuruguay
AT parodig persistenceoflongtermeffectsofphosphatefertilizationandlegumeintroductioningrasslandsofuruguay
AT delpinomachadoamabelia persistenciadeefectosalargoplazodelafertilizacionfosfatadaylaintroducciondeleguminosasenpastizalesdeluruguay
AT lezamaf persistenciadeefectosalargoplazodelafertilizacionfosfatadaylaintroducciondeleguminosasenpastizalesdeluruguay
AT pezzanif persistenciadeefectosalargoplazodelafertilizacionfosfatadaylaintroducciondeleguminosasenpastizalesdeluruguay
AT parodig persistenciadeefectosalargoplazodelafertilizacionfosfatadaylaintroducciondeleguminosasenpastizalesdeluruguay
first_indexed 2024-09-03T22:16:26Z
last_indexed 2024-09-03T22:16:26Z
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