Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrate
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Publication Date: | 2005 |
Other Authors: | , , , |
Format: | Article |
Language: | por |
Source: | Pesquisa Agropecuária Brasileira (Online) |
Download full: | https://seer.sct.embrapa.br/index.php/pab/article/view/6951 |
Summary: | Physiologic processes of plants are affected by uptake of cations and anions. The aim of this work was to determine the uptake of cations and anions when plants of coastcross grass received high doses of nitrogen. The experimental design was a randomized block, in a 2x5 factorial arrangement – two N sources: urea and ammonium nitrate and five N rates: 0, 25, 50, 100, and 200 kg ha-1 cutting-1 – with four replications. Treatments were applied after each of five consecutive cutting in the rainy season. Uptake of cations and anions by coastcross grass increased with increasing of N rates with both fertilizers, but was higher with ammonium nitrate. Increasing rates of N caused higher K+ uptake in relation to other cations, and in Cl- among the anions. Except for N, K+ uptake was greater than that of other nutrients, with a reduction on the relative content of Ca2+. High doses of N as urea or ammonium nitrate applied on coastcross grass favor absorption of cations and anions. |
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Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrateAbsorção de cátions e ânions pelo capim-coastcross adubado com uréia e nitrato de amônioCynodon dactylon; nutrients absorption; nitrogen fertilizersCynodon dactylon; absorção de nutrientes; adubos nitrogenadosPhysiologic processes of plants are affected by uptake of cations and anions. The aim of this work was to determine the uptake of cations and anions when plants of coastcross grass received high doses of nitrogen. The experimental design was a randomized block, in a 2x5 factorial arrangement – two N sources: urea and ammonium nitrate and five N rates: 0, 25, 50, 100, and 200 kg ha-1 cutting-1 – with four replications. Treatments were applied after each of five consecutive cutting in the rainy season. Uptake of cations and anions by coastcross grass increased with increasing of N rates with both fertilizers, but was higher with ammonium nitrate. Increasing rates of N caused higher K+ uptake in relation to other cations, and in Cl- among the anions. Except for N, K+ uptake was greater than that of other nutrients, with a reduction on the relative content of Ca2+. High doses of N as urea or ammonium nitrate applied on coastcross grass favor absorption of cations and anions.Os processos fisiológicos das plantas são afetados pelo balanço de cátions e ânions absorvidos. O objetivo deste trabalho foi determinar a absorção de cátions e ânions quando plantas de capim-coastcross receberam doses elevadas de nitrogênio. O delineamento experimental foi o de blocos casualizados com quatro repetições, num esquema fatorial 2x5 – duas fontes de N: uréia e nitrato de amônio, e cinco doses de N: 0, 25, 50, 100, 200 kg ha-1 corte-1. As doses de N foram aplicadas após cada corte num total de cinco cortes, durante a época das chuvas. A absorção de cátions e de ânions pelo capim-coastcross aumentou com o acréscimo das doses de N dos dois fertilizantes, sendo maior com o nitrato de amônio. Com doses crescentes de N, verificou-se entre os cátions maior absorção do K+, e do Cl- entre os ânions. Com exceção do N, a absorção do K+ foi superior à dos demais nutrientes, com redução no teor relativo de cálcio. Doses altas de N aplicadas em capim-coastcross, na forma de uréia ou de nitrato de amônio, favorecem a absorção de cátions e de ânions.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraPrimavesi, Ana CândidaPrimavesi, OdoCorrêa, Luciano AlmeidaCantarella, HeitorSilva, Aliomar Gabriel da2005-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6951Pesquisa Agropecuaria Brasileira; v.40, n.3, mar. 2005; 247-253Pesquisa Agropecuária Brasileira; v.40, n.3, mar. 2005; 247-2531678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6951/3999info:eu-repo/semantics/openAccess2014-09-22T19:04:35Zoai:ojs.seer.sct.embrapa.br:article/6951Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-22T19:04:35Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrate Absorção de cátions e ânions pelo capim-coastcross adubado com uréia e nitrato de amônio |
title |
Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrate |
spellingShingle |
Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrate Primavesi, Ana Cândida Cynodon dactylon; nutrients absorption; nitrogen fertilizers Cynodon dactylon; absorção de nutrientes; adubos nitrogenados |
title_short |
Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrate |
title_full |
Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrate |
title_fullStr |
Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrate |
title_full_unstemmed |
Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrate |
title_sort |
Cations and anions uptake by coastcross grass fertilized with urea and ammonium nitrate |
author |
Primavesi, Ana Cândida |
author_facet |
Primavesi, Ana Cândida Primavesi, Odo Corrêa, Luciano Almeida Cantarella, Heitor Silva, Aliomar Gabriel da |
author_role |
author |
author2 |
Primavesi, Odo Corrêa, Luciano Almeida Cantarella, Heitor Silva, Aliomar Gabriel da |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Primavesi, Ana Cândida Primavesi, Odo Corrêa, Luciano Almeida Cantarella, Heitor Silva, Aliomar Gabriel da |
dc.subject.por.fl_str_mv |
Cynodon dactylon; nutrients absorption; nitrogen fertilizers Cynodon dactylon; absorção de nutrientes; adubos nitrogenados |
topic |
Cynodon dactylon; nutrients absorption; nitrogen fertilizers Cynodon dactylon; absorção de nutrientes; adubos nitrogenados |
description |
Physiologic processes of plants are affected by uptake of cations and anions. The aim of this work was to determine the uptake of cations and anions when plants of coastcross grass received high doses of nitrogen. The experimental design was a randomized block, in a 2x5 factorial arrangement – two N sources: urea and ammonium nitrate and five N rates: 0, 25, 50, 100, and 200 kg ha-1 cutting-1 – with four replications. Treatments were applied after each of five consecutive cutting in the rainy season. Uptake of cations and anions by coastcross grass increased with increasing of N rates with both fertilizers, but was higher with ammonium nitrate. Increasing rates of N caused higher K+ uptake in relation to other cations, and in Cl- among the anions. Except for N, K+ uptake was greater than that of other nutrients, with a reduction on the relative content of Ca2+. High doses of N as urea or ammonium nitrate applied on coastcross grass favor absorption of cations and anions. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-03-01 |
dc.type.none.fl_str_mv |
|
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://seer.sct.embrapa.br/index.php/pab/article/view/6951 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/6951 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/6951/3999 |
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 |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.40, n.3, mar. 2005; 247-253 Pesquisa Agropecuária Brasileira; v.40, n.3, mar. 2005; 247-253 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
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Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416693911912448 |