Capacity of potassium supply in twelve soil classes in function of maize successive crops
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Revista de Ciências Agrárias (Belém. Online) |
Texto Completo: | https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1910 |
Resumo: | The forms and content of K in soil vary according to soil classes and, consequently with its degree of development, which influence the availability o K to plants. The objective of this study was to evaluate the capacity of K supply in 12 soils through four successive crops of maize. The randomized block experimental design was used, with three replications and twenty-four treatments that consisted in a combination of two doses of K (0 and 100 mg dm-3) and 12 soils. After and before the maize crops, sub-samples sized 0.2 dm3 were taken from each pot in order to determine the content of non-exchangeable K (Knt), exchangeable K (Kt) and soluble K (Ks).The less developed, in which were observed a large presence of secondary 2:1 minerals in clay fraction, showed greater ability to supply K to maize plants over the four successive crops; while the more developed where there is a predominance of kaolinite and goethite in clay fraction showed less ability to supply K, especially the sandy ones. |
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Revista de Ciências Agrárias (Belém. Online) |
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Capacity of potassium supply in twelve soil classes in function of maize successive cropsCapacidade de suprimento de potássio em doze classes de solos em função de cultivos sucessivos de milhoThe forms and content of K in soil vary according to soil classes and, consequently with its degree of development, which influence the availability o K to plants. The objective of this study was to evaluate the capacity of K supply in 12 soils through four successive crops of maize. The randomized block experimental design was used, with three replications and twenty-four treatments that consisted in a combination of two doses of K (0 and 100 mg dm-3) and 12 soils. After and before the maize crops, sub-samples sized 0.2 dm3 were taken from each pot in order to determine the content of non-exchangeable K (Knt), exchangeable K (Kt) and soluble K (Ks).The less developed, in which were observed a large presence of secondary 2:1 minerals in clay fraction, showed greater ability to supply K to maize plants over the four successive crops; while the more developed where there is a predominance of kaolinite and goethite in clay fraction showed less ability to supply K, especially the sandy ones. Os teores e formas de K no solo variam de acordo com as classes de solos e, consequentemente, com o grau de desenvolvimento, o que influencia diretamente a disponibilidade deste nutriente para as plantas. Objetivou-se, com este trabalho, avaliar a capacidade de suprimento de K para as plantas em 12 classes de solos ao longo de quatro cultivos sucessivos de milho em casa de vegetação. O delineamento experimental utilizado foi o de blocos casualizados com três repetições e os 24 tratamentos consistiram da combinação de duas doses de K (0 e 100 mg dm-3) e 12 solos. Antes e após cada cultivo de milho, foram retiradas de cada vaso subamostras de 0,2 dm3 para análises dos teores de K não trocável (Knt), K trocável (Kt) e K solúvel (Ks). Os solos menos desenvolvidos mais argilosos, com predominância de minerais do tipo 2:1 na fração argila, apresentaram maior capacidade de suprimento de K para as plantas de milho ao longo dos quatro cultivos sucessivos, enquanto os solos mais desenvolvidos com predominância de caulinita e goethita na fração argila apresentaram menor capacidade de suprimento de K, especialmente aqueles mais arenosos.Universidade Federal Rural da Amazônia/UFRA2017-01-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/1910Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 59 No 3 (2016): RCA; 219-227Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 59 n. 3 (2016): RCA; 219-2272177-87601517-591Xreponame:Revista de Ciências Agrárias (Belém. Online)instname:Universidade Federal Rural da Amazônia (UFRA)instacron:UFRAporhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/1910/866Vieira, Montesquieu da Silvade Oliveira, Fábio Henrique TavaresSantos, Hemmannuella Costade Medeiros, Jailma dos Santosinfo:eu-repo/semantics/openAccess2017-07-18T16:02:21Zoai:ojs.www.periodicos.ufra.edu.br:article/1910Revistahttps://ajaes.ufra.edu.br/index.php/ajaes/PUBhttps://ajaes.ufra.edu.br/index.php/ajaes/oaiallan.lobato@ufra.edu.br || ajaes.suporte@gmail.com2177-87601517-591Xopendoar:2017-07-18T16:02:21Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA)false |
dc.title.none.fl_str_mv |
Capacity of potassium supply in twelve soil classes in function of maize successive crops Capacidade de suprimento de potássio em doze classes de solos em função de cultivos sucessivos de milho |
title |
Capacity of potassium supply in twelve soil classes in function of maize successive crops |
spellingShingle |
Capacity of potassium supply in twelve soil classes in function of maize successive crops Vieira, Montesquieu da Silva |
title_short |
Capacity of potassium supply in twelve soil classes in function of maize successive crops |
title_full |
Capacity of potassium supply in twelve soil classes in function of maize successive crops |
title_fullStr |
Capacity of potassium supply in twelve soil classes in function of maize successive crops |
title_full_unstemmed |
Capacity of potassium supply in twelve soil classes in function of maize successive crops |
title_sort |
Capacity of potassium supply in twelve soil classes in function of maize successive crops |
author |
Vieira, Montesquieu da Silva |
author_facet |
Vieira, Montesquieu da Silva de Oliveira, Fábio Henrique Tavares Santos, Hemmannuella Costa de Medeiros, Jailma dos Santos |
author_role |
author |
author2 |
de Oliveira, Fábio Henrique Tavares Santos, Hemmannuella Costa de Medeiros, Jailma dos Santos |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Vieira, Montesquieu da Silva de Oliveira, Fábio Henrique Tavares Santos, Hemmannuella Costa de Medeiros, Jailma dos Santos |
description |
The forms and content of K in soil vary according to soil classes and, consequently with its degree of development, which influence the availability o K to plants. The objective of this study was to evaluate the capacity of K supply in 12 soils through four successive crops of maize. The randomized block experimental design was used, with three replications and twenty-four treatments that consisted in a combination of two doses of K (0 and 100 mg dm-3) and 12 soils. After and before the maize crops, sub-samples sized 0.2 dm3 were taken from each pot in order to determine the content of non-exchangeable K (Knt), exchangeable K (Kt) and soluble K (Ks).The less developed, in which were observed a large presence of secondary 2:1 minerals in clay fraction, showed greater ability to supply K to maize plants over the four successive crops; while the more developed where there is a predominance of kaolinite and goethite in clay fraction showed less ability to supply K, especially the sandy ones. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-25 |
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 |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1910 |
url |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1910 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1910/866 |
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 Rural da Amazônia/UFRA |
publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
dc.source.none.fl_str_mv |
Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 59 No 3 (2016): RCA; 219-227 Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 59 n. 3 (2016): RCA; 219-227 2177-8760 1517-591X reponame:Revista de Ciências Agrárias (Belém. Online) instname:Universidade Federal Rural da Amazônia (UFRA) instacron:UFRA |
instname_str |
Universidade Federal Rural da Amazônia (UFRA) |
instacron_str |
UFRA |
institution |
UFRA |
reponame_str |
Revista de Ciências Agrárias (Belém. Online) |
collection |
Revista de Ciências Agrárias (Belém. Online) |
repository.name.fl_str_mv |
Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA) |
repository.mail.fl_str_mv |
allan.lobato@ufra.edu.br || ajaes.suporte@gmail.com |
_version_ |
1797231628024545280 |