Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systems
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6640 |
Resumo: | The aim of this work is to characterize, using a micromorphometric analysis, the aggregates of a Hapludox submitted to different management systems. This work was carried out in a Rhodic Hapludox in Dourados-MS. The experimental design was in randomized blocks with four replications and treatments arranged in sub-subdivided plots. Treatments were established in two management systems (conventional and no-tillage), two doses of gypsum (zero and 2 t ha-1) and the use of two summer crops (soybean and corn). Aggregates were collected, in depths of 0 to 10 and 10 to 20 cm, using, in experimental proceedings, those held in diameter intervals of 9.52 and 4.76 mm, after sieving in a standard sieve set. For collecting aggregates, 40 x 40 cm trenches were opened and sieving was done in the field. Aggregate analyses were done by digital images obtained by scanner (300 dpi) of 60 aggregates arranged in a tray with untidy holes in order to preserve the principle of randomization. Images were later analyzed using the QUANTPORO program, and the analyzed characteristics of the aggregates were the area and its inter-relation with chemical attributes of the soil. The results demonstrated that no-tillage promoted the formation of larger aggregates; soybean as summer culture contributed to that structural effect in the soil; and the application of gypsum increased the aggregation in larger depths. |
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Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systemsAnálise micromorfométrica de agregados de um LATOSSOLO VERMELHO Distroférrico em diferentes sistemas de manejo - DOI: 10.4025/actasciagron.v31i1.6640no-tillagedigital imagesaggregatesplantio diretoimagens digitaisagregados.The aim of this work is to characterize, using a micromorphometric analysis, the aggregates of a Hapludox submitted to different management systems. This work was carried out in a Rhodic Hapludox in Dourados-MS. The experimental design was in randomized blocks with four replications and treatments arranged in sub-subdivided plots. Treatments were established in two management systems (conventional and no-tillage), two doses of gypsum (zero and 2 t ha-1) and the use of two summer crops (soybean and corn). Aggregates were collected, in depths of 0 to 10 and 10 to 20 cm, using, in experimental proceedings, those held in diameter intervals of 9.52 and 4.76 mm, after sieving in a standard sieve set. For collecting aggregates, 40 x 40 cm trenches were opened and sieving was done in the field. Aggregate analyses were done by digital images obtained by scanner (300 dpi) of 60 aggregates arranged in a tray with untidy holes in order to preserve the principle of randomization. Images were later analyzed using the QUANTPORO program, and the analyzed characteristics of the aggregates were the area and its inter-relation with chemical attributes of the soil. The results demonstrated that no-tillage promoted the formation of larger aggregates; soybean as summer culture contributed to that structural effect in the soil; and the application of gypsum increased the aggregation in larger depths.O objetivo deste trabalho é caracterizar micromorfometricamente os agregados de um Latossolo submetido a diferentes formas de manejo do solo. O trabalho desenvolveu-se em um LATOSSOLO VERMELHO Distroférrico, de Dourados, Mato Grosso do Sul. O delineamento experimental utilizado foi o de blocos casualizados com quatro repetições e os tratamentos foram arranjados em parcelas sub-subdivididas. Os tratamentos consistiram de dois sistemas de manejo (convencional e plantio direto), duas doses de gesso (zero e 2 t ha-1) e a utilização de duas culturas de verão (soja e milho). Os agregados foram coletados, nas profundidades de 0 a 10 e 10 a 20 cm, utilizando-se, nos procedimentos experimentais, os retidos no intervalo de diâmetro de 9,52 e 4,76 mm, após peneiramento em um jogo de peneiras-padrão. As análises dos agregados foram realizadas por meio de imagens digitais obtidas via scanner (300 dpi) em 60 agregados dispostos em um tabuleiro de furos desencontrados. As imagens foram posteriormente analisadas com o programa QUANTPORO, e a característica analisada dos agregados foi a área e sua inter-relação com atributos químicos do solo. Os resultados demonstraram que o sistema de plantio direto proporcionou a formação de agregados maiores, a soja como cultura de verão contribuiu para esse efeito estrutural no solo e a aplicação de gesso agrícola incrementou a agregação em maiores profundidades.Universidade Estadual de Maringá2009-03-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/664010.4025/actasciagron.v31i1.6640Acta Scientiarum. Agronomy; Vol 31 No 1 (2009); 139-146Acta Scientiarum. Agronomy; v. 31 n. 1 (2009); 139-1461807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6640/6640Cremon, CassianoRosa Júnior, Edgard JardimSerafim, Milson EvaldoOno, Fábio Beneditoinfo:eu-repo/semantics/openAccess2022-11-23T18:38:19Zoai:periodicos.uem.br/ojs:article/6640Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:19Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systems Análise micromorfométrica de agregados de um LATOSSOLO VERMELHO Distroférrico em diferentes sistemas de manejo - DOI: 10.4025/actasciagron.v31i1.6640 |
title |
Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systems |
spellingShingle |
Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systems Cremon, Cassiano no-tillage digital images aggregates plantio direto imagens digitais agregados. |
title_short |
Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systems |
title_full |
Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systems |
title_fullStr |
Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systems |
title_full_unstemmed |
Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systems |
title_sort |
Micromorphometric analysis of aggregates of Rhodic Hapludox under different management systems |
author |
Cremon, Cassiano |
author_facet |
Cremon, Cassiano Rosa Júnior, Edgard Jardim Serafim, Milson Evaldo Ono, Fábio Benedito |
author_role |
author |
author2 |
Rosa Júnior, Edgard Jardim Serafim, Milson Evaldo Ono, Fábio Benedito |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Cremon, Cassiano Rosa Júnior, Edgard Jardim Serafim, Milson Evaldo Ono, Fábio Benedito |
dc.subject.por.fl_str_mv |
no-tillage digital images aggregates plantio direto imagens digitais agregados. |
topic |
no-tillage digital images aggregates plantio direto imagens digitais agregados. |
description |
The aim of this work is to characterize, using a micromorphometric analysis, the aggregates of a Hapludox submitted to different management systems. This work was carried out in a Rhodic Hapludox in Dourados-MS. The experimental design was in randomized blocks with four replications and treatments arranged in sub-subdivided plots. Treatments were established in two management systems (conventional and no-tillage), two doses of gypsum (zero and 2 t ha-1) and the use of two summer crops (soybean and corn). Aggregates were collected, in depths of 0 to 10 and 10 to 20 cm, using, in experimental proceedings, those held in diameter intervals of 9.52 and 4.76 mm, after sieving in a standard sieve set. For collecting aggregates, 40 x 40 cm trenches were opened and sieving was done in the field. Aggregate analyses were done by digital images obtained by scanner (300 dpi) of 60 aggregates arranged in a tray with untidy holes in order to preserve the principle of randomization. Images were later analyzed using the QUANTPORO program, and the analyzed characteristics of the aggregates were the area and its inter-relation with chemical attributes of the soil. The results demonstrated that no-tillage promoted the formation of larger aggregates; soybean as summer culture contributed to that structural effect in the soil; and the application of gypsum increased the aggregation in larger depths. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-03-19 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6640 10.4025/actasciagron.v31i1.6640 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6640 |
identifier_str_mv |
10.4025/actasciagron.v31i1.6640 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6640/6640 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 31 No 1 (2009); 139-146 Acta Scientiarum. Agronomy; v. 31 n. 1 (2009); 139-146 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305907627098112 |