Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/7033 |
Resumo: | Two experiments were carried out, one in summer-autumn and the other during spring-summer, in Coimbra, Minas Gerais State, in order to evaluate the effect of different doses of nitrogen and molybdenum on bean plants. The experimental design was randomized blocks, with four repetitions, in a 4 x 2 x 2 factorial arrangement, consisting of four levels of molybdenum (0, 40, 80 and 120 g ha-1), applied by foliar spraying at 25 days after plant emergence, two doses of nitrogen during sowing (0 and 20 kg ha-1) and two doses of nitrogen applied on the surface (0 and 50 kg ha-1). In the presence and in the absence of nitrogen in the planting or on the surface, the increment of the molybdenum dose up to 80 g ha-1 elevates the number of pods per plant and the productivity of grains of bean. In general, increasing doses of molybdenum also elevate the number of grains of bean per pod and the mass of 100 seeds, but these effects are more dependent on the presence of sowing nitrogen or surface. The effects of molybdenum on the level of N in the leaves, molybdenum content in the seed and SPAD readings are less solid; for this reason, they should not be generalized. |
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Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033Combinações de doses de molibdênio e nitrogênio na adubação da cultura do feijoeiro-comum - DOI: 10.4025/actasciagron.v31i2.7033Phaseolus vulgarisfoliar fertilizationmineral nutritionPhaseolus vulgarisadubação foliarnutrição mineralTwo experiments were carried out, one in summer-autumn and the other during spring-summer, in Coimbra, Minas Gerais State, in order to evaluate the effect of different doses of nitrogen and molybdenum on bean plants. The experimental design was randomized blocks, with four repetitions, in a 4 x 2 x 2 factorial arrangement, consisting of four levels of molybdenum (0, 40, 80 and 120 g ha-1), applied by foliar spraying at 25 days after plant emergence, two doses of nitrogen during sowing (0 and 20 kg ha-1) and two doses of nitrogen applied on the surface (0 and 50 kg ha-1). In the presence and in the absence of nitrogen in the planting or on the surface, the increment of the molybdenum dose up to 80 g ha-1 elevates the number of pods per plant and the productivity of grains of bean. In general, increasing doses of molybdenum also elevate the number of grains of bean per pod and the mass of 100 seeds, but these effects are more dependent on the presence of sowing nitrogen or surface. The effects of molybdenum on the level of N in the leaves, molybdenum content in the seed and SPAD readings are less solid; for this reason, they should not be generalized.Foram conduzidos dois experimentos em Coimbra, Estado de Minas Gerais, um no verão-outono e outro na primavera-verão com o objetivo de avaliar o efeito de diferentes doses de molibdênio e nitrogênio sobre o feijoeiro, cultivar Meia Noite, utilizando delineamento em blocos casualizados, com quatro repetições, e esquema fatorial 4 x 2 x 2, envolvendo quatro níveis de molibdênio (0, 40, 80 e 120 g há-1) aplicados em pulverização foliar aos 25 dias após a emergência das plantas, duas doses nitrogênio aplicadas na semeadura (0 e 20 kg há-1) e aplicadas duas doses de nitrogênio em cobertura (0 e 50 kg há-1). Tanto na presença como na ausência de nitrogênio na semeadura ou cobertura, o incremento da dose de molibdênio até 80 g há-1 eleva o número de vagens por planta e a produtividade de grãos do feijoeiro. Em geral, as doses crescentes de molibdênio também elevam o número de grãos por vagem e a massa de 100 sementes, mas estes efeitos são mais dependentes do emprego de nitrogênio de semeadura ou cobertura. Os efeitos do molibdênio sobre o teor de N total nas folhas, conteúdo de molibdênio na semente e leituras SPAD são menos consistentes, por esta razão, não devem ser generalizados.Universidade Estadual de Maringá2009-05-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/703310.4025/actasciagron.v31i2.7033Acta Scientiarum. Agronomy; Vol 31 No 2 (2009); 227-234Acta Scientiarum. Agronomy; v. 31 n. 2 (2009); 227-2341807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/7033/7033Araújo, Paulo Roberto de AndradeAraujo, Geraldo Antonio de AndradeRocha, Paulo Roberto RibeiroCarneiro, José Eustáquio de Souzainfo:eu-repo/semantics/openAccess2022-11-23T18:38:21Zoai:periodicos.uem.br/ojs:article/7033Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:21Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033 Combinações de doses de molibdênio e nitrogênio na adubação da cultura do feijoeiro-comum - DOI: 10.4025/actasciagron.v31i2.7033 |
title |
Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033 |
spellingShingle |
Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033 Araújo, Paulo Roberto de Andrade Phaseolus vulgaris foliar fertilization mineral nutrition Phaseolus vulgaris adubação foliar nutrição mineral |
title_short |
Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033 |
title_full |
Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033 |
title_fullStr |
Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033 |
title_full_unstemmed |
Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033 |
title_sort |
Combinations of molybdenum and nitrogen doses on common bean fertilization - DOI: 10.4025/actasciagron.v31i2.7033 |
author |
Araújo, Paulo Roberto de Andrade |
author_facet |
Araújo, Paulo Roberto de Andrade Araujo, Geraldo Antonio de Andrade Rocha, Paulo Roberto Ribeiro Carneiro, José Eustáquio de Souza |
author_role |
author |
author2 |
Araujo, Geraldo Antonio de Andrade Rocha, Paulo Roberto Ribeiro Carneiro, José Eustáquio de Souza |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Araújo, Paulo Roberto de Andrade Araujo, Geraldo Antonio de Andrade Rocha, Paulo Roberto Ribeiro Carneiro, José Eustáquio de Souza |
dc.subject.por.fl_str_mv |
Phaseolus vulgaris foliar fertilization mineral nutrition Phaseolus vulgaris adubação foliar nutrição mineral |
topic |
Phaseolus vulgaris foliar fertilization mineral nutrition Phaseolus vulgaris adubação foliar nutrição mineral |
description |
Two experiments were carried out, one in summer-autumn and the other during spring-summer, in Coimbra, Minas Gerais State, in order to evaluate the effect of different doses of nitrogen and molybdenum on bean plants. The experimental design was randomized blocks, with four repetitions, in a 4 x 2 x 2 factorial arrangement, consisting of four levels of molybdenum (0, 40, 80 and 120 g ha-1), applied by foliar spraying at 25 days after plant emergence, two doses of nitrogen during sowing (0 and 20 kg ha-1) and two doses of nitrogen applied on the surface (0 and 50 kg ha-1). In the presence and in the absence of nitrogen in the planting or on the surface, the increment of the molybdenum dose up to 80 g ha-1 elevates the number of pods per plant and the productivity of grains of bean. In general, increasing doses of molybdenum also elevate the number of grains of bean per pod and the mass of 100 seeds, but these effects are more dependent on the presence of sowing nitrogen or surface. The effects of molybdenum on the level of N in the leaves, molybdenum content in the seed and SPAD readings are less solid; for this reason, they should not be generalized. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-05-14 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/7033 10.4025/actasciagron.v31i2.7033 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/7033 |
identifier_str_mv |
10.4025/actasciagron.v31i2.7033 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/7033/7033 |
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 Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 31 No 2 (2009); 227-234 Acta Scientiarum. Agronomy; v. 31 n. 2 (2009); 227-234 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
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1750315305396076544 |