Micronutrientes em perfis de solos do Escudo Sul-riograndense.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFPel - Guaiaca |
Texto Completo: | http://repositorio.ufpel.edu.br/handle/ri/1178 |
Resumo: | The highlands from the southern region of State of Rio Grande do Sul have been traditionally used for extensive cattle raising, which practically does not demand soil analysis and fertilization. The sustainable use of the soils with other agricultural activities, such as forestry, that has been increased in the last few years, needs a more suitable and accurate knowledge of the needs of soil fertilization, including the micronutrients. In this context, this study has the objective of quantifying the micronutrients availability and reserve present in the different types of soils of the region. For this purpose, 22 soil profiles representative of the different soil parent material and profile development found in the region were sampled and chemical analysis of the total, available and oxide bound Cu, Zn, B, Fe and Mn were performed. The results indicate that for the majority of the soils the available and total contents of micronutrients are high, with more likely deficiency possibilities for Cu and B, in this order, related to specific soil parent material types. For Zn and Mn, despite the high available contents, there is the possibility of deficiency in the future due to a low reserve in case the crop withdraw be not returned. The ammonium oxalate extracted Cu and Zn data indicate that the reserve of these micronutrients in low cristallinity Fe (and Mn) is negligible. Only a small fraction of the total Cu is found in oxides in the soils studied, in opposition to the Zn, where in a topsoil it reached around 65%. |
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http://lattes.cnpq.br/6715070315999808http://lattes.cnpq.br/9700460071937173Pinto, Luiz Fernando Spinellihttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4703626H5Castilhos, Rosa Maria VargasSilva, Juliana Brito da2014-08-20T13:25:42Z2011-03-242014-08-20T13:25:42Z2009-03-31SILVA, Juliana Brito da. Micronutrients in soil profiles from the Sulriograndense Shield, Brazil.. 2009. 153 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Pelotas, Pelotas, 2009.http://repositorio.ufpel.edu.br/handle/ri/1178The highlands from the southern region of State of Rio Grande do Sul have been traditionally used for extensive cattle raising, which practically does not demand soil analysis and fertilization. The sustainable use of the soils with other agricultural activities, such as forestry, that has been increased in the last few years, needs a more suitable and accurate knowledge of the needs of soil fertilization, including the micronutrients. In this context, this study has the objective of quantifying the micronutrients availability and reserve present in the different types of soils of the region. For this purpose, 22 soil profiles representative of the different soil parent material and profile development found in the region were sampled and chemical analysis of the total, available and oxide bound Cu, Zn, B, Fe and Mn were performed. The results indicate that for the majority of the soils the available and total contents of micronutrients are high, with more likely deficiency possibilities for Cu and B, in this order, related to specific soil parent material types. For Zn and Mn, despite the high available contents, there is the possibility of deficiency in the future due to a low reserve in case the crop withdraw be not returned. The ammonium oxalate extracted Cu and Zn data indicate that the reserve of these micronutrients in low cristallinity Fe (and Mn) is negligible. Only a small fraction of the total Cu is found in oxides in the soils studied, in opposition to the Zn, where in a topsoil it reached around 65%.As terras altas da região sul do estado do Rio Grande do Sul vêm sendo tradicionalmente utilizadas com pecuária extensiva, que praticamente não demanda análise e correção de solo. O uso sustentável do solo com outras atividades como a silvicultura, que começou a ser implantada em maior escala nos últimos anos, necessita de um conhecimento mais adequado com relação às necessidades de correção do solo, incluindo os micronutrientes. Nesse contexto, este trabalho tem como objetivo quantificar a disponibilidade e a reserva de micronutrientes presentes nos diferentes tipos de solos da região. Para tal, foram coletadas amostras de 22 perfis de solos representativos da variedade do material de origem e do grau de desenvolvimento dos solos presentes na região e realizadas análises químicas dos teores disponíveis, totais e ligados aos óxidos dos micronutrientes Cu, Zn, B, Fe e Mn. Os resultados indicam que para a maioria dos solos os teores disponíveis e a reserva são altos, com maiores possibilidades de deficiência de Cu e B, nessa ordem, em solos oriundos de materiais de origem específicos. No caso do Zn e do Mn, apesar dos teores disponíveis altos, em casos particulares, uma baixa reserva pode gerar possibilidade de deficiência desses micronutrientes no futuro. Os dados de Cu e Zn com oxalato de amônio indicam que a reserva dos micronutrientes Cu e Zn em óxidos de Fe (e de Mn) de baixa cristalinidade é inexpressiva. Nos solos estudados, apenas uma pequena fração do Cu total está presente nos óxidos, ao contrário do Zn onde essa chegou, em um determinado solo, a atingir 65%.application/pdfporUniversidade Federal de PelotasPrograma de Pós-Graduação em AgronomiaUFPelBRFaculdade de Agronomia Eliseu MacielMicronutrientesFertilidadeReservaMaterial de origemMicronutrientsSoil fertilityReserve of nutrientsParent materialCNPQ::CIENCIAS AGRARIAS::AGRONOMIAMicronutrientes em perfis de solos do Escudo Sul-riograndense.Micronutrients in soil profiles from the Sulriograndense Shield, Brazil.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFPel - Guaiacainstname:Universidade Federal de Pelotas (UFPEL)instacron:UFPELORIGINALDissertacao_Juliana_ Brito_da_Silva.pdfapplication/pdf17044768http://guaiaca.ufpel.edu.br/xmlui/bitstream/123456789/1178/1/Dissertacao_Juliana_%20Brito_da_Silva.pdf1320d3e5fc898021a6254c663f4ed2f3MD51open accessTEXTDissertacao_Juliana_ Brito_da_Silva.pdf.txtDissertacao_Juliana_ Brito_da_Silva.pdf.txtExtracted Texttext/plain210730http://guaiaca.ufpel.edu.br/xmlui/bitstream/123456789/1178/2/Dissertacao_Juliana_%20Brito_da_Silva.pdf.txte32d97571b0d0b494d9b044fb3e82a0fMD52open accessTHUMBNAILDissertacao_Juliana_ Brito_da_Silva.pdf.jpgDissertacao_Juliana_ Brito_da_Silva.pdf.jpgGenerated Thumbnailimage/jpeg1378http://guaiaca.ufpel.edu.br/xmlui/bitstream/123456789/1178/3/Dissertacao_Juliana_%20Brito_da_Silva.pdf.jpgd7b3b87e7e41bee7d0bc6a45a136d6d4MD53open access123456789/11782022-12-22 20:47:12.612open accessoai:guaiaca.ufpel.edu.br:123456789/1178Repositório InstitucionalPUBhttp://repositorio.ufpel.edu.br/oai/requestrippel@ufpel.edu.br || repositorio@ufpel.edu.br || aline.batista@ufpel.edu.bropendoar:2022-12-22T23:47:12Repositório Institucional da UFPel - Guaiaca - Universidade Federal de Pelotas (UFPEL)false |
dc.title.por.fl_str_mv |
Micronutrientes em perfis de solos do Escudo Sul-riograndense. |
dc.title.alternative.eng.fl_str_mv |
Micronutrients in soil profiles from the Sulriograndense Shield, Brazil. |
title |
Micronutrientes em perfis de solos do Escudo Sul-riograndense. |
spellingShingle |
Micronutrientes em perfis de solos do Escudo Sul-riograndense. Silva, Juliana Brito da Micronutrientes Fertilidade Reserva Material de origem Micronutrients Soil fertility Reserve of nutrients Parent material CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Micronutrientes em perfis de solos do Escudo Sul-riograndense. |
title_full |
Micronutrientes em perfis de solos do Escudo Sul-riograndense. |
title_fullStr |
Micronutrientes em perfis de solos do Escudo Sul-riograndense. |
title_full_unstemmed |
Micronutrientes em perfis de solos do Escudo Sul-riograndense. |
title_sort |
Micronutrientes em perfis de solos do Escudo Sul-riograndense. |
author |
Silva, Juliana Brito da |
author_facet |
Silva, Juliana Brito da |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/6715070315999808 |
dc.contributor.advisorLattes.por.fl_str_mv |
http://lattes.cnpq.br/9700460071937173 |
dc.contributor.advisor-co1.fl_str_mv |
Pinto, Luiz Fernando Spinelli |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4703626H5 |
dc.contributor.advisor1.fl_str_mv |
Castilhos, Rosa Maria Vargas |
dc.contributor.author.fl_str_mv |
Silva, Juliana Brito da |
contributor_str_mv |
Pinto, Luiz Fernando Spinelli Castilhos, Rosa Maria Vargas |
dc.subject.por.fl_str_mv |
Micronutrientes Fertilidade Reserva Material de origem |
topic |
Micronutrientes Fertilidade Reserva Material de origem Micronutrients Soil fertility Reserve of nutrients Parent material CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.eng.fl_str_mv |
Micronutrients Soil fertility Reserve of nutrients Parent material |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
The highlands from the southern region of State of Rio Grande do Sul have been traditionally used for extensive cattle raising, which practically does not demand soil analysis and fertilization. The sustainable use of the soils with other agricultural activities, such as forestry, that has been increased in the last few years, needs a more suitable and accurate knowledge of the needs of soil fertilization, including the micronutrients. In this context, this study has the objective of quantifying the micronutrients availability and reserve present in the different types of soils of the region. For this purpose, 22 soil profiles representative of the different soil parent material and profile development found in the region were sampled and chemical analysis of the total, available and oxide bound Cu, Zn, B, Fe and Mn were performed. The results indicate that for the majority of the soils the available and total contents of micronutrients are high, with more likely deficiency possibilities for Cu and B, in this order, related to specific soil parent material types. For Zn and Mn, despite the high available contents, there is the possibility of deficiency in the future due to a low reserve in case the crop withdraw be not returned. The ammonium oxalate extracted Cu and Zn data indicate that the reserve of these micronutrients in low cristallinity Fe (and Mn) is negligible. Only a small fraction of the total Cu is found in oxides in the soils studied, in opposition to the Zn, where in a topsoil it reached around 65%. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009-03-31 |
dc.date.available.fl_str_mv |
2011-03-24 2014-08-20T13:25:42Z |
dc.date.accessioned.fl_str_mv |
2014-08-20T13:25:42Z |
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.citation.fl_str_mv |
SILVA, Juliana Brito da. Micronutrients in soil profiles from the Sulriograndense Shield, Brazil.. 2009. 153 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Pelotas, Pelotas, 2009. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufpel.edu.br/handle/ri/1178 |
identifier_str_mv |
SILVA, Juliana Brito da. Micronutrients in soil profiles from the Sulriograndense Shield, Brazil.. 2009. 153 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Pelotas, Pelotas, 2009. |
url |
http://repositorio.ufpel.edu.br/handle/ri/1178 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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 Federal de Pelotas |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Agronomia |
dc.publisher.initials.fl_str_mv |
UFPel |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Faculdade de Agronomia Eliseu Maciel |
publisher.none.fl_str_mv |
Universidade Federal de Pelotas |
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UFPEL |
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