Relationship between photosynthetic pigments and corn production under nitrogen sources
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/63661 |
Resumo: | Nitrogen (N) is a dynamic element in the soil, so new nitrogen fertilization alternatives are required as a way of maximizing its efficiency. Besides, vegetation sensors are a way to assess and manage the nutritional demands of plants. This study aimed to evaluate the effect of nitrogen sources on photosynthetic pigments and their correlation with corn grain yield and dry biomass. The experiment was carried out in a randomized block design with nitrogen sources (mineral, organic and biological). Contents of chlorophyll a, b and total, as well as carotenoids, were evaluated. The chlorophyll indices evaluated by both methods were positively correlated with each other and with the grain yield per plant. Nitrogen fertilization 100 % mineral was superior, when compared to the other treatments, with increments of up to 44 %. There was a positive relationship between the methods of determining and estimating the chlorophyll contents. The grain yield per plant showed the highest values when using the 100 % mineral fertilizer source, with increments above 10 %, in relation to the other sources, spending US$ 89.77 on fertilizer and earning over US$ 538.60 on grain yield. There was a positive correlation between the photosynthetic pigments obtained by both methods and grain yield per plant. Both methods are recommended for the evaluation of chlorophyll concentrations. KEYWORDS: Azospirillum brasilense, nitrogen fertilization, chlorophyll, poultry litter. |
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Relationship between photosynthetic pigments and corn production under nitrogen sourcesRelação entre pigmentos fotossintéticos e produção de milho sob fontes de nitrogênioNitrogen (N) is a dynamic element in the soil, so new nitrogen fertilization alternatives are required as a way of maximizing its efficiency. Besides, vegetation sensors are a way to assess and manage the nutritional demands of plants. This study aimed to evaluate the effect of nitrogen sources on photosynthetic pigments and their correlation with corn grain yield and dry biomass. The experiment was carried out in a randomized block design with nitrogen sources (mineral, organic and biological). Contents of chlorophyll a, b and total, as well as carotenoids, were evaluated. The chlorophyll indices evaluated by both methods were positively correlated with each other and with the grain yield per plant. Nitrogen fertilization 100 % mineral was superior, when compared to the other treatments, with increments of up to 44 %. There was a positive relationship between the methods of determining and estimating the chlorophyll contents. The grain yield per plant showed the highest values when using the 100 % mineral fertilizer source, with increments above 10 %, in relation to the other sources, spending US$ 89.77 on fertilizer and earning over US$ 538.60 on grain yield. There was a positive correlation between the photosynthetic pigments obtained by both methods and grain yield per plant. Both methods are recommended for the evaluation of chlorophyll concentrations. KEYWORDS: Azospirillum brasilense, nitrogen fertilization, chlorophyll, poultry litter.O nitrogênio (N) é um elemento dinâmico no solo. Dessa forma, novas alternativas de fertilização nitrogenada são demandadas, como forma de maximizar a sua eficiência. Aliado a isso, os sensores de vegetação surgem como forma de avaliar e manejar as demandas nutricionais das plantas. Objetivou-se avaliar o efeito de fontes de nitrogênio nos pigmentos fotossintéticos e sua correlação com o rendimento de grãos e biomassa seca em milho. O experimento foi conduzido em blocos casualizados com fontes de nitrogênio (mineral, orgânica e biológica). Avaliaram-se os teores de clorofila a, b e total, bem como de carotenoides. Os índices de clorofila avaliados por ambos os métodos se correlacionaram positivamente entre si e com o rendimento de grãos por planta. A adubação nitrogenada 100 % mineral foi superior, quando comparada com os demais tratamentos, com incrementos de até 44 %. Verificou-se relação positiva entre os métodos de determinação e a estimativa dos teores de clorofila. O rendimento de grãos por planta apresentou os maiores valores quando se utilizou a fonte de adubação 100 % mineral, apresentando incrementos acima de 10 %, em relação às demais fontes, com gasto de US$ 89.77 com o fertilizante e ganho acima de US$ 538.60 para o rendimento de grãos. Verificou-se correlação positiva entre os pigmentos fotossintetizantes avaliados por ambos os métodos e o rendimento de grãos por planta. Recomendam-se ambos os métodos para a avaliação das concentrações de clorofila. PALAVRAS-CHAVE: Azospirillum brasilense, adubação nitrogenada, clorofila, cama de aves.Escola de Agronomia - Universidade Federal de Goiás2020-10-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/63661Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e63661Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e63661Pesquisa Agropecuária Tropical; v. 50 (2020); e636611983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/63661/35598Copyright (c) 2020 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessZibetti Fornari, EzequielGaviraghi, LucasBasso, Claudir JoséMarques Pinheiro, Marcos Vinícius Vian, André Luis Santi, Antônio Luis 2020-10-21T18:15:56Zoai:ojs.revistas.ufg.br:article/63661Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:28.587908Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Relationship between photosynthetic pigments and corn production under nitrogen sources Relação entre pigmentos fotossintéticos e produção de milho sob fontes de nitrogênio |
title |
Relationship between photosynthetic pigments and corn production under nitrogen sources |
spellingShingle |
Relationship between photosynthetic pigments and corn production under nitrogen sources Zibetti Fornari, Ezequiel |
title_short |
Relationship between photosynthetic pigments and corn production under nitrogen sources |
title_full |
Relationship between photosynthetic pigments and corn production under nitrogen sources |
title_fullStr |
Relationship between photosynthetic pigments and corn production under nitrogen sources |
title_full_unstemmed |
Relationship between photosynthetic pigments and corn production under nitrogen sources |
title_sort |
Relationship between photosynthetic pigments and corn production under nitrogen sources |
author |
Zibetti Fornari, Ezequiel |
author_facet |
Zibetti Fornari, Ezequiel Gaviraghi, Lucas Basso, Claudir José Marques Pinheiro, Marcos Vinícius Vian, André Luis Santi, Antônio Luis |
author_role |
author |
author2 |
Gaviraghi, Lucas Basso, Claudir José Marques Pinheiro, Marcos Vinícius Vian, André Luis Santi, Antônio Luis |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Zibetti Fornari, Ezequiel Gaviraghi, Lucas Basso, Claudir José Marques Pinheiro, Marcos Vinícius Vian, André Luis Santi, Antônio Luis |
description |
Nitrogen (N) is a dynamic element in the soil, so new nitrogen fertilization alternatives are required as a way of maximizing its efficiency. Besides, vegetation sensors are a way to assess and manage the nutritional demands of plants. This study aimed to evaluate the effect of nitrogen sources on photosynthetic pigments and their correlation with corn grain yield and dry biomass. The experiment was carried out in a randomized block design with nitrogen sources (mineral, organic and biological). Contents of chlorophyll a, b and total, as well as carotenoids, were evaluated. The chlorophyll indices evaluated by both methods were positively correlated with each other and with the grain yield per plant. Nitrogen fertilization 100 % mineral was superior, when compared to the other treatments, with increments of up to 44 %. There was a positive relationship between the methods of determining and estimating the chlorophyll contents. The grain yield per plant showed the highest values when using the 100 % mineral fertilizer source, with increments above 10 %, in relation to the other sources, spending US$ 89.77 on fertilizer and earning over US$ 538.60 on grain yield. There was a positive correlation between the photosynthetic pigments obtained by both methods and grain yield per plant. Both methods are recommended for the evaluation of chlorophyll concentrations. KEYWORDS: Azospirillum brasilense, nitrogen fertilization, chlorophyll, poultry litter. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-21 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/63661 |
url |
https://revistas.ufg.br/pat/article/view/63661 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/63661/35598 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e63661 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e63661 Pesquisa Agropecuária Tropical; v. 50 (2020); e63661 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
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1799874820563795968 |