Crescimento e nutrição mineral de Urochloa arrecta
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scielo.br/scielo.php?pid=S0100-83582015000100033&script=sci_arttext&tlng=en http://hdl.handle.net/11449/129485 |
Resumo: | The experiment was carried out aiming to analyze dry mass production and distribution, and the content and accumulation of macronutrients in Urochloa arrecta plants cultivated under mineral nutrition standard conditions. Plants grew in seven-liter pots filled with sand substrate, were daily irrigated with nutrient solution, and maintained under greenhouse conditions. Treatments corresponded to assessment periods (21, 35, 49, 63, 77, 91, 105, 119, 133, 147, and 161 days after emergence - DAE) and were arranged in a completely randomized design with four replicates. Plants of U. arrecta showed low accumulation (less than 7% of the maximum accumulation at 161 DAE) of dry mass (5.1 g DM per planta) and of macronutrients (57.7 mg N per planta, 8.9 mg P per planta, 167.8 mg K per planta, 21.3 mg Ca per planta, 14.7 mg Mg per planta, and 9.2 mg S per planta) up to 49 DAE. Such accumulations increased mainly after 91 DAE. Daily accumulation rate was crescent up to 130 DAE (DM and S), 137 DAE (N), 125 DAE (P), 119 DAE (K), 144 DAE (Ca), and 128 DAE (Mg), when there was accumulation of 87.7 g DM per planta, 918.0 mg N per planta, 105.8 mg P per planta, 1,643.9 K per planta, 390.4 mg Ca per planta, 200.0 mg Mg per planta, and 103.5 mg S per planta. K and N were found to have the highest rates and, hence, they were the most demanded and accumulated in the greatest amounts in U. arrecta plant tissues. |
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Crescimento e nutrição mineral de Urochloa arrectaGrowth and mineral nutrition of Urochloa arrectaAfrican signal-grassWeeddry massNutrientsBraquiária-do-brejoPlanta daninhaMatéria secaNutrientesThe experiment was carried out aiming to analyze dry mass production and distribution, and the content and accumulation of macronutrients in Urochloa arrecta plants cultivated under mineral nutrition standard conditions. Plants grew in seven-liter pots filled with sand substrate, were daily irrigated with nutrient solution, and maintained under greenhouse conditions. Treatments corresponded to assessment periods (21, 35, 49, 63, 77, 91, 105, 119, 133, 147, and 161 days after emergence - DAE) and were arranged in a completely randomized design with four replicates. Plants of U. arrecta showed low accumulation (less than 7% of the maximum accumulation at 161 DAE) of dry mass (5.1 g DM per planta) and of macronutrients (57.7 mg N per planta, 8.9 mg P per planta, 167.8 mg K per planta, 21.3 mg Ca per planta, 14.7 mg Mg per planta, and 9.2 mg S per planta) up to 49 DAE. Such accumulations increased mainly after 91 DAE. Daily accumulation rate was crescent up to 130 DAE (DM and S), 137 DAE (N), 125 DAE (P), 119 DAE (K), 144 DAE (Ca), and 128 DAE (Mg), when there was accumulation of 87.7 g DM per planta, 918.0 mg N per planta, 105.8 mg P per planta, 1,643.9 K per planta, 390.4 mg Ca per planta, 200.0 mg Mg per planta, and 103.5 mg S per planta. K and N were found to have the highest rates and, hence, they were the most demanded and accumulated in the greatest amounts in U. arrecta plant tissues.O experimento foi conduzido com o objetivo de analisar o crescimento e a distribuição de matéria seca e os teores e acúmulos dos macronutrientes em plantas de Urochloa arrecta cultivadas em condições padronizadas de nutrição mineral. As plantas cresceram em vasos de sete litros com substrato de areia, irrigados diariamente com solução nutritiva, e foram mantidas em casa de vegetação. Os tratamentos corresponderam às épocas de avaliação (21, 35, 49, 63, 77, 91, 105, 119, 133, 147 e 161 dias após a emergência – DAE) e foram arranjados em delineamento inteiramente casualizado com quatro repetições. Plantas de U. arrecta apresentaram baixo acúmulo (menor que 7% dos valores máximos acumulados aos 161 DAE) de matéria seca (5,1 g MS por planta) e de macronutrientes (57,7 mg N por planta; 8,9 mg P por planta; 167,8 mg K por planta; 21,3 mg Ca por planta; 14,7 mg Mg por planta; e 9,2 mg S por planta) até 49 DAE. Esses acúmulos se intensificaram principalmente após 91 DAE; a taxa diária de acúmulo foi crescente até 130 DAE (MS e S), 137 DAE (N), 125 DAE (P), 119 DAE (K), 144 DAE (Ca) e 128 DAE (Mg), quando houve acúmulo de 87,7 g MS por planta; 918,0 mg N por planta; 105,8 mg P por planta; 1.643,9 mg K por planta; 390,4 mg Ca por planta; 200,0 mg Mg por planta; e 103,5 mg S por planta. K e N foram os macronutrientes com os maiores teores e, consequentemente, mais requeridos e acumulados em maior quantidade nos tecidos vegetais de plantas de U. arrecta.Univ Estadual Paulista, Jaboticabal, SP, BrazilUniv Estado Santa Catarina, Lages, SC, BrazilUniv Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal, Departamento de Biologia Aplicada à Agropecuária Jaboticabal, SP, BrazilUniv Federal VicosaUniversidade Estadual Paulista (Unesp)Universidade do Estado Santa Catarina (UDESC)Bianco, Silvano [UNESP]Carvalho, L. B.Bianco, Matheus Saraiva [UNESP]Yamauchi, Alfredo Kohiti Feres [UNESP]2015-10-21T21:11:52Z2015-10-21T21:11:52Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article33-40application/pdfhttp://www.scielo.br/scielo.php?pid=S0100-83582015000100033&script=sci_arttext&tlng=enPlanta Daninha. Vicosa: Univ Federal Vicosa, v. 33, n. 1, p. 33-40, 2015.0100-8358http://hdl.handle.net/11449/12948510.1590/S0100-83582015000100004S0100-83582015000100033WOS:000353633900004S0100-83582015000100033.pdf6918834051800256Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporPlanta Daninha0.5440,365info:eu-repo/semantics/openAccess2024-06-06T13:04:45Zoai:repositorio.unesp.br:11449/129485Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:58:37.229741Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Crescimento e nutrição mineral de Urochloa arrecta Growth and mineral nutrition of Urochloa arrecta |
title |
Crescimento e nutrição mineral de Urochloa arrecta |
spellingShingle |
Crescimento e nutrição mineral de Urochloa arrecta Bianco, Silvano [UNESP] African signal-grass Weed dry mass Nutrients Braquiária-do-brejo Planta daninha Matéria seca Nutrientes |
title_short |
Crescimento e nutrição mineral de Urochloa arrecta |
title_full |
Crescimento e nutrição mineral de Urochloa arrecta |
title_fullStr |
Crescimento e nutrição mineral de Urochloa arrecta |
title_full_unstemmed |
Crescimento e nutrição mineral de Urochloa arrecta |
title_sort |
Crescimento e nutrição mineral de Urochloa arrecta |
author |
Bianco, Silvano [UNESP] |
author_facet |
Bianco, Silvano [UNESP] Carvalho, L. B. Bianco, Matheus Saraiva [UNESP] Yamauchi, Alfredo Kohiti Feres [UNESP] |
author_role |
author |
author2 |
Carvalho, L. B. Bianco, Matheus Saraiva [UNESP] Yamauchi, Alfredo Kohiti Feres [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade do Estado Santa Catarina (UDESC) |
dc.contributor.author.fl_str_mv |
Bianco, Silvano [UNESP] Carvalho, L. B. Bianco, Matheus Saraiva [UNESP] Yamauchi, Alfredo Kohiti Feres [UNESP] |
dc.subject.por.fl_str_mv |
African signal-grass Weed dry mass Nutrients Braquiária-do-brejo Planta daninha Matéria seca Nutrientes |
topic |
African signal-grass Weed dry mass Nutrients Braquiária-do-brejo Planta daninha Matéria seca Nutrientes |
description |
The experiment was carried out aiming to analyze dry mass production and distribution, and the content and accumulation of macronutrients in Urochloa arrecta plants cultivated under mineral nutrition standard conditions. Plants grew in seven-liter pots filled with sand substrate, were daily irrigated with nutrient solution, and maintained under greenhouse conditions. Treatments corresponded to assessment periods (21, 35, 49, 63, 77, 91, 105, 119, 133, 147, and 161 days after emergence - DAE) and were arranged in a completely randomized design with four replicates. Plants of U. arrecta showed low accumulation (less than 7% of the maximum accumulation at 161 DAE) of dry mass (5.1 g DM per planta) and of macronutrients (57.7 mg N per planta, 8.9 mg P per planta, 167.8 mg K per planta, 21.3 mg Ca per planta, 14.7 mg Mg per planta, and 9.2 mg S per planta) up to 49 DAE. Such accumulations increased mainly after 91 DAE. Daily accumulation rate was crescent up to 130 DAE (DM and S), 137 DAE (N), 125 DAE (P), 119 DAE (K), 144 DAE (Ca), and 128 DAE (Mg), when there was accumulation of 87.7 g DM per planta, 918.0 mg N per planta, 105.8 mg P per planta, 1,643.9 K per planta, 390.4 mg Ca per planta, 200.0 mg Mg per planta, and 103.5 mg S per planta. K and N were found to have the highest rates and, hence, they were the most demanded and accumulated in the greatest amounts in U. arrecta plant tissues. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-21T21:11:52Z 2015-10-21T21:11:52Z 2015-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.scielo.br/scielo.php?pid=S0100-83582015000100033&script=sci_arttext&tlng=en Planta Daninha. Vicosa: Univ Federal Vicosa, v. 33, n. 1, p. 33-40, 2015. 0100-8358 http://hdl.handle.net/11449/129485 10.1590/S0100-83582015000100004 S0100-83582015000100033 WOS:000353633900004 S0100-83582015000100033.pdf 6918834051800256 |
url |
http://www.scielo.br/scielo.php?pid=S0100-83582015000100033&script=sci_arttext&tlng=en http://hdl.handle.net/11449/129485 |
identifier_str_mv |
Planta Daninha. Vicosa: Univ Federal Vicosa, v. 33, n. 1, p. 33-40, 2015. 0100-8358 10.1590/S0100-83582015000100004 S0100-83582015000100033 WOS:000353633900004 S0100-83582015000100033.pdf 6918834051800256 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Planta Daninha 0.544 0,365 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
33-40 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Federal Vicosa |
publisher.none.fl_str_mv |
Univ Federal Vicosa |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808128880002727936 |