Acidification evidences of no-tilled soils of the central region of Argentina
- Autores
- Iturri, Laura Antonela; Buschiazzo, Daniel Eduardo; Díaz Zorita, Martín
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fil: Díaz Zorita, Martín. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Fil: Díaz Zorita, Martín. CONICET. Buenos Aires, Argentina.
Fil: Díaz Zorita, Martín. Merck Crop Bioscience Argentina S.A.
Empiric evidences indicate that agricultural soils of Argentina tend to acidify. The objective of this study was to determine the pH values of no-tilled and urea-fertilized-agricultural soils of Argentina during several years. Results indicated that both the actual pH (pHA) and the potential pH (pHP) values were lower in humid than in dry environments. The ratio between «mean annual precipitation:mean annual temperature» of the sites explained between 60 and 80 percent of the variability in pH values. This suggests that climatic conditions were responsible for current soil pH values. The pHA was 1.14 points higher tan pHP in all studied sites (p less than 0.01), indicating that a generalized natural acidification process existed. In soils of drier environments, differences between both pHA and pHP were, on average, higher than 1.21, indicating a more intense acidification process. However, pH values were not low enough to affect the normal growth of crops and soil organisms. In soils of humid environments, differences between pHA and pHP were higher than 1.10, being pHA values (6.17 and 5.80) acidic enough to affect the microbial activity and the development of pH sensitive crops. Fertilization with urea decreased pHA between 0.18 and 0.32 points compared to non-fertilized treatments (p less than 0.05), indicating that fertilization contributed to a decrease in pH values in the studied soils. In conclusion, fertilization with urea slightly increased the natural tendency to soil acidification in most of the studied soils. - Fuente
- Ciencia del suelo : revista de la Asociación Argentina de la Ciencia del Suelo
Vol.29, no.1
13-19
http://www.suelos.org.ar/ - Materia
-
NITROGEN FERTILIZERS
SOIL ACIDIFICATION
SOIL DEGRADATION
ACIDIFICATION
AGRICULTURAL SOIL
DEGRADATION
FERTILIZER APPLICATION
GROWTH RESPONSE
MICROBIAL ACTIVITY
NITROGEN
PH
SOIL CHEMISTRY
UREA
ARGENTINA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- acceso abierto
- Repositorio
- Institución
- Universidad de Buenos Aires. Facultad de Agronomía
- OAI Identificador
- snrd:2011Iturri
Ver los metadatos del registro completo
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oai_identifier_str |
snrd:2011Iturri |
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spelling |
Acidification evidences of no-tilled soils of the central region of ArgentinaIturri, Laura AntonelaBuschiazzo, Daniel EduardoDíaz Zorita, MartínNITROGEN FERTILIZERSSOIL ACIDIFICATIONSOIL DEGRADATIONACIDIFICATIONAGRICULTURAL SOILDEGRADATIONFERTILIZER APPLICATIONGROWTH RESPONSEMICROBIAL ACTIVITYNITROGENPHSOIL CHEMISTRYUREAARGENTINAFil: Díaz Zorita, Martín. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.Fil: Díaz Zorita, Martín. CONICET. Buenos Aires, Argentina.Fil: Díaz Zorita, Martín. Merck Crop Bioscience Argentina S.A.Empiric evidences indicate that agricultural soils of Argentina tend to acidify. The objective of this study was to determine the pH values of no-tilled and urea-fertilized-agricultural soils of Argentina during several years. Results indicated that both the actual pH (pHA) and the potential pH (pHP) values were lower in humid than in dry environments. The ratio between «mean annual precipitation:mean annual temperature» of the sites explained between 60 and 80 percent of the variability in pH values. This suggests that climatic conditions were responsible for current soil pH values. The pHA was 1.14 points higher tan pHP in all studied sites (p less than 0.01), indicating that a generalized natural acidification process existed. In soils of drier environments, differences between both pHA and pHP were, on average, higher than 1.21, indicating a more intense acidification process. However, pH values were not low enough to affect the normal growth of crops and soil organisms. In soils of humid environments, differences between pHA and pHP were higher than 1.10, being pHA values (6.17 and 5.80) acidic enough to affect the microbial activity and the development of pH sensitive crops. Fertilization with urea decreased pHA between 0.18 and 0.32 points compared to non-fertilized treatments (p less than 0.05), indicating that fertilization contributed to a decrease in pH values in the studied soils. In conclusion, fertilization with urea slightly increased the natural tendency to soil acidification in most of the studied soils.2011articleinfo:eu-repo/semantics/articlepublishedVersioninfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfissn:0326-3169http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2011IturriCiencia del suelo : revista de la Asociación Argentina de la Ciencia del SueloVol.29, no.113-19http://www.suelos.org.ar/reponame:FAUBA Digital (UBA-FAUBA)instname:Universidad de Buenos Aires. Facultad de AgronomíaengARGinfo:eu-repo/semantics/openAccessopenAccesshttp://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section42025-09-29T13:41:00Zsnrd:2011Iturriinstacron:UBA-FAUBAInstitucionalhttp://ri.agro.uba.ar/Universidad públicaNo correspondehttp://ri.agro.uba.ar/greenstone3/oaiserver?verb=ListSetsmartino@agro.uba.ar;berasa@agro.uba.ar ArgentinaNo correspondeNo correspondeNo correspondeopendoar:27292025-09-29 13:41:01.024FAUBA Digital (UBA-FAUBA) - Universidad de Buenos Aires. Facultad de Agronomíafalse |
dc.title.none.fl_str_mv |
Acidification evidences of no-tilled soils of the central region of Argentina |
title |
Acidification evidences of no-tilled soils of the central region of Argentina |
spellingShingle |
Acidification evidences of no-tilled soils of the central region of Argentina Iturri, Laura Antonela NITROGEN FERTILIZERS SOIL ACIDIFICATION SOIL DEGRADATION ACIDIFICATION AGRICULTURAL SOIL DEGRADATION FERTILIZER APPLICATION GROWTH RESPONSE MICROBIAL ACTIVITY NITROGEN PH SOIL CHEMISTRY UREA ARGENTINA |
title_short |
Acidification evidences of no-tilled soils of the central region of Argentina |
title_full |
Acidification evidences of no-tilled soils of the central region of Argentina |
title_fullStr |
Acidification evidences of no-tilled soils of the central region of Argentina |
title_full_unstemmed |
Acidification evidences of no-tilled soils of the central region of Argentina |
title_sort |
Acidification evidences of no-tilled soils of the central region of Argentina |
dc.creator.none.fl_str_mv |
Iturri, Laura Antonela Buschiazzo, Daniel Eduardo Díaz Zorita, Martín |
author |
Iturri, Laura Antonela |
author_facet |
Iturri, Laura Antonela Buschiazzo, Daniel Eduardo Díaz Zorita, Martín |
author_role |
author |
author2 |
Buschiazzo, Daniel Eduardo Díaz Zorita, Martín |
author2_role |
author author |
dc.subject.none.fl_str_mv |
NITROGEN FERTILIZERS SOIL ACIDIFICATION SOIL DEGRADATION ACIDIFICATION AGRICULTURAL SOIL DEGRADATION FERTILIZER APPLICATION GROWTH RESPONSE MICROBIAL ACTIVITY NITROGEN PH SOIL CHEMISTRY UREA ARGENTINA |
topic |
NITROGEN FERTILIZERS SOIL ACIDIFICATION SOIL DEGRADATION ACIDIFICATION AGRICULTURAL SOIL DEGRADATION FERTILIZER APPLICATION GROWTH RESPONSE MICROBIAL ACTIVITY NITROGEN PH SOIL CHEMISTRY UREA ARGENTINA |
dc.description.none.fl_txt_mv |
Fil: Díaz Zorita, Martín. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. Fil: Díaz Zorita, Martín. CONICET. Buenos Aires, Argentina. Fil: Díaz Zorita, Martín. Merck Crop Bioscience Argentina S.A. Empiric evidences indicate that agricultural soils of Argentina tend to acidify. The objective of this study was to determine the pH values of no-tilled and urea-fertilized-agricultural soils of Argentina during several years. Results indicated that both the actual pH (pHA) and the potential pH (pHP) values were lower in humid than in dry environments. The ratio between «mean annual precipitation:mean annual temperature» of the sites explained between 60 and 80 percent of the variability in pH values. This suggests that climatic conditions were responsible for current soil pH values. The pHA was 1.14 points higher tan pHP in all studied sites (p less than 0.01), indicating that a generalized natural acidification process existed. In soils of drier environments, differences between both pHA and pHP were, on average, higher than 1.21, indicating a more intense acidification process. However, pH values were not low enough to affect the normal growth of crops and soil organisms. In soils of humid environments, differences between pHA and pHP were higher than 1.10, being pHA values (6.17 and 5.80) acidic enough to affect the microbial activity and the development of pH sensitive crops. Fertilization with urea decreased pHA between 0.18 and 0.32 points compared to non-fertilized treatments (p less than 0.05), indicating that fertilization contributed to a decrease in pH values in the studied soils. In conclusion, fertilization with urea slightly increased the natural tendency to soil acidification in most of the studied soils. |
description |
Fil: Díaz Zorita, Martín. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011 |
dc.type.none.fl_str_mv |
article info:eu-repo/semantics/article publishedVersion info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
issn:0326-3169 http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2011Iturri |
identifier_str_mv |
issn:0326-3169 |
url |
http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2011Iturri |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess openAccess http://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section4 |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
openAccess http://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section4 |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
ARG |
dc.source.none.fl_str_mv |
Ciencia del suelo : revista de la Asociación Argentina de la Ciencia del Suelo Vol.29, no.1 13-19 http://www.suelos.org.ar/ reponame:FAUBA Digital (UBA-FAUBA) instname:Universidad de Buenos Aires. Facultad de Agronomía |
reponame_str |
FAUBA Digital (UBA-FAUBA) |
collection |
FAUBA Digital (UBA-FAUBA) |
instname_str |
Universidad de Buenos Aires. Facultad de Agronomía |
repository.name.fl_str_mv |
FAUBA Digital (UBA-FAUBA) - Universidad de Buenos Aires. Facultad de Agronomía |
repository.mail.fl_str_mv |
martino@agro.uba.ar;berasa@agro.uba.ar |
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1844618850850570240 |
score |
13.070432 |