Propriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duração
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/11554 |
Resumo: | The intensive use of agricultural soils caused a significant degradation of its chemical, physical, biological and microbiological structure. Aiming to maintain or promote improvements in soil quality, several techniques were developed, including the no-tillage system. The objective of this study was to evaluate the effect of rotation plans and tillage system on physical and hydraulic properties of a Rhodic Eutrudox in grain yield and development of soybean. The study was carried out in a long-lived experiment, implemented in 1993, on a very clayey Rhodic Eutrudox. The experiment presents a 2x3 factorial scheme (tillage system x rotation plans). The tillage factor is composed of: I) conventional tillage; and II) no-tillage. The rotation plans factor is composed of: I) soybean/wheat succession; II) rotation maize/lupine-soybean/oatssoybean/ wheat-soybean/wheat; and III) succession soybean/maize + brachiaria. Soil physical and hydraulic parameters such as density, total porosity, macro and microporosity, infiltration and hydraulic conductivity were evaluated. The plant parameters evaluated were root length density, plant height, weight of one thousand grains and yield of soybean crop. The available water fraction, hydraulic conductivity of unsaturated soil, frequency and volume of pores and uniformity of distribution of pore classes were obtained from the fit of the Van Genuchten model. The no-tillage compared to the conventional tillage provides greater stability in soybean grain yield. The isolated assessment of basic soil physical attributes can provide limited and erroneous information on the actual condition of its structure. Soil hydraulic conductivity, soil water infiltration, and frequency of soil pore distribution were effective in explaining soybean productivity more adequately. The soil pore continuity index proposed in this paper corroborates the other soil attributes, measured and estimated, and can be used quickly and efficiently to estimate soil pore continuity. |
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2017-08-23T12:03:26Z2017-08-23T12:03:26Z2017-02-23http://repositorio.ufsm.br/handle/1/11554The intensive use of agricultural soils caused a significant degradation of its chemical, physical, biological and microbiological structure. Aiming to maintain or promote improvements in soil quality, several techniques were developed, including the no-tillage system. The objective of this study was to evaluate the effect of rotation plans and tillage system on physical and hydraulic properties of a Rhodic Eutrudox in grain yield and development of soybean. The study was carried out in a long-lived experiment, implemented in 1993, on a very clayey Rhodic Eutrudox. The experiment presents a 2x3 factorial scheme (tillage system x rotation plans). The tillage factor is composed of: I) conventional tillage; and II) no-tillage. The rotation plans factor is composed of: I) soybean/wheat succession; II) rotation maize/lupine-soybean/oatssoybean/ wheat-soybean/wheat; and III) succession soybean/maize + brachiaria. Soil physical and hydraulic parameters such as density, total porosity, macro and microporosity, infiltration and hydraulic conductivity were evaluated. The plant parameters evaluated were root length density, plant height, weight of one thousand grains and yield of soybean crop. The available water fraction, hydraulic conductivity of unsaturated soil, frequency and volume of pores and uniformity of distribution of pore classes were obtained from the fit of the Van Genuchten model. The no-tillage compared to the conventional tillage provides greater stability in soybean grain yield. The isolated assessment of basic soil physical attributes can provide limited and erroneous information on the actual condition of its structure. Soil hydraulic conductivity, soil water infiltration, and frequency of soil pore distribution were effective in explaining soybean productivity more adequately. The soil pore continuity index proposed in this paper corroborates the other soil attributes, measured and estimated, and can be used quickly and efficiently to estimate soil pore continuity.O uso intensivo dos solos agrícolas provocou acentuada degradação de sua estrutura química, física, biológica e microbiológicas. Com o intuito de manter ou promover melhorias na qualidade do solo diversas técnicas foram desenvolvidas, entre elas o sistema plantio direto. O objetivo deste trabalho foi de avaliar o efeito de planos de rotação e do sistema de preparo do solo nas propriedades físicas e hídricas de um Latossolo, na produtividade de grãos e no desenvolvimento da cultura da soja. O estudo foi realizado em um experimento de longa duração, implantado em 1993, em um Latossolo Vermelho Distroférrico muito argiloso. O experimento apresenta esquema fatorial 2x3 (sistema de preparo do solo x planos de rotação). O fator preparo do solo é composto por: I) Preparo convencional; e II) Plantio direto. O fator planos de rotação é composto por: I) sucessão soja/trigo; II) rotação milho/tremoço-soja/aveiasoja/ trigo-soja/trigo; e III) sucessão soja/milho+brachiaria. Foram avaliados parâmetros físicos e hídricos do solo como a densidade, porosidade total, macro e microporosidade, infiltração e condutividade hidráulica. Os parâmetros de planta avaliados foram a densidade do comprimento radicular, altura de plantas, peso de mil grãos e produtividade da cultura da soja. A fração de água disponível, condutividade hidráulica de solo não saturado, a frequência e o volume de poros e a uniformidade de distribuição de classes de poros foram obtidos do ajuste do modelo de Van Genuchten. O sistema plantio direto em comparação ao sistema de preparo convencional do solo proporciona maior estabilidade na produtividade de grãos de soja. A avaliação isolada de atributos físicos básicos do solo pode fornecer informações limitadas e errôneas da real condição de sua estrutura. A condutividade hidráulica do solo, infiltração de água do solo, frequência e distribuição de poros do solo foram eficazes para explicar de forma mais adequada a produtividade da soja. O índice de continuidade de poros do solo proposto neste trabalho corrobora com os demais atributos do solo, medidos e estimados, podendo então ser utilizado de forma rápida e eficiente para estimativa da continuidade de poros do solo.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Agronomia - Agricultura e AmbienteUFSMBrasilAgronomiaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessDistribuição de porosÍndice de continuidade de porosCondutividade hidráulicaCompactação do soloProdutividade da sojaDistribution of poresIndex of soil pore continuityHydraulic conductivitySoil compactionSoybean productivityCNPQ::CIENCIAS AGRARIAS::AGRONOMIAPropriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duraçãoPhysical and hydric properties of a rhodic eutrudox in Different long-term crop systemsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisSilva, Vanderlei Rodrigues dahttp://lattes.cnpq.br/7941766438504530Da Ros, Clovis Orlandohttp://lattes.cnpq.br/6947821986020400Kaiser, Douglas Rodrigohttp://lattes.cnpq.br/9066672071907756http://lattes.cnpq.br/2382577036182178Ortigara, Cícero500100000009600f5fff142-7306-4c56-886d-c472944117c74982ba98-7329-4c2d-a567-8a9878f33a7d9ec1bb8a-bfa6-4767-8408-95b2b586542a09145413-68d1-46f8-99f4-4b8ebb729114reponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALOrtigara, Cícero.pdfOrtigara, Cícero.pdfDissertação de Mestradoapplication/pdf3215858http://repositorio.ufsm.br/bitstream/1/11554/1/Ortigara%2c%20C%c3%adcero.pdfc497ad646ad32c21bfbddcd36deb122bMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Propriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duração |
dc.title.alternative.eng.fl_str_mv |
Physical and hydric properties of a rhodic eutrudox in Different long-term crop systems |
title |
Propriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duração |
spellingShingle |
Propriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duração Ortigara, Cícero Distribuição de poros Índice de continuidade de poros Condutividade hidráulica Compactação do solo Produtividade da soja Distribution of pores Index of soil pore continuity Hydraulic conductivity Soil compaction Soybean productivity CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Propriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duração |
title_full |
Propriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duração |
title_fullStr |
Propriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duração |
title_full_unstemmed |
Propriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duração |
title_sort |
Propriedades físicas e hídricas de um latossolo em diferentes Sistemas de cultivo de longa duração |
author |
Ortigara, Cícero |
author_facet |
Ortigara, Cícero |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Silva, Vanderlei Rodrigues da |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/7941766438504530 |
dc.contributor.referee1.fl_str_mv |
Da Ros, Clovis Orlando |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/6947821986020400 |
dc.contributor.referee2.fl_str_mv |
Kaiser, Douglas Rodrigo |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/9066672071907756 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/2382577036182178 |
dc.contributor.author.fl_str_mv |
Ortigara, Cícero |
contributor_str_mv |
Silva, Vanderlei Rodrigues da Da Ros, Clovis Orlando Kaiser, Douglas Rodrigo |
dc.subject.por.fl_str_mv |
Distribuição de poros Índice de continuidade de poros Condutividade hidráulica Compactação do solo Produtividade da soja |
topic |
Distribuição de poros Índice de continuidade de poros Condutividade hidráulica Compactação do solo Produtividade da soja Distribution of pores Index of soil pore continuity Hydraulic conductivity Soil compaction Soybean productivity CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.eng.fl_str_mv |
Distribution of pores Index of soil pore continuity Hydraulic conductivity Soil compaction Soybean productivity |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
The intensive use of agricultural soils caused a significant degradation of its chemical, physical, biological and microbiological structure. Aiming to maintain or promote improvements in soil quality, several techniques were developed, including the no-tillage system. The objective of this study was to evaluate the effect of rotation plans and tillage system on physical and hydraulic properties of a Rhodic Eutrudox in grain yield and development of soybean. The study was carried out in a long-lived experiment, implemented in 1993, on a very clayey Rhodic Eutrudox. The experiment presents a 2x3 factorial scheme (tillage system x rotation plans). The tillage factor is composed of: I) conventional tillage; and II) no-tillage. The rotation plans factor is composed of: I) soybean/wheat succession; II) rotation maize/lupine-soybean/oatssoybean/ wheat-soybean/wheat; and III) succession soybean/maize + brachiaria. Soil physical and hydraulic parameters such as density, total porosity, macro and microporosity, infiltration and hydraulic conductivity were evaluated. The plant parameters evaluated were root length density, plant height, weight of one thousand grains and yield of soybean crop. The available water fraction, hydraulic conductivity of unsaturated soil, frequency and volume of pores and uniformity of distribution of pore classes were obtained from the fit of the Van Genuchten model. The no-tillage compared to the conventional tillage provides greater stability in soybean grain yield. The isolated assessment of basic soil physical attributes can provide limited and erroneous information on the actual condition of its structure. Soil hydraulic conductivity, soil water infiltration, and frequency of soil pore distribution were effective in explaining soybean productivity more adequately. The soil pore continuity index proposed in this paper corroborates the other soil attributes, measured and estimated, and can be used quickly and efficiently to estimate soil pore continuity. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-08-23T12:03:26Z |
dc.date.available.fl_str_mv |
2017-08-23T12:03:26Z |
dc.date.issued.fl_str_mv |
2017-02-23 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/11554 |
url |
http://repositorio.ufsm.br/handle/1/11554 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500100000009 |
dc.relation.confidence.fl_str_mv |
600 |
dc.relation.authority.fl_str_mv |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Agronomia - Agricultura e Ambiente |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Agronomia |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
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UFSM |
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collection |
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