N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/8764 |
Resumo: | The adequate ratio in the supply of nitrogen (N) and potassium (K) for each phenological growth stage of melon is fundamental for its growth and development with the maximization of the dry mass partition between the vegetative and reproductive parts. The objective of this study was to evaluate the influence of N and K concentrations in two phenological growth stages (vegetative and reproductive stage) of melon and obtain the best N:K ratio for each one. In the first stage, four concentrations of N (8, 11, 14 and 17 mmol L-1) and two concentrations of K (4 and 5 mmol L-1) were evaluated in a randomized block design in a 4 × 2 factorial scheme with five replicates. In the second stage, in a 2 × 2 factorial scheme, the combinations of the two concentrations of N that generated the best characteristics in the previous stage and two concentrations of K (4.5 and 9.0 mmol L-1) were evaluated. The increase of the N concentration in the vegetative stage promoted the increase of the N, P and S content of leaves and the reduction of K, Ca and Mg. Moreover, it increased the number of leaves, the height of the plant (vertically tutored) and the leaf area. Therefore, 17:5 mmol L-1 was considered as the best N:K ratio for the vegetative stage. In the second stage, there was no effect of N and K concentrations on leaf area, yield and fruit quality. So, 14:4.5 mmol L-1 was considered as the best N:K ratio for the reproductive stage. |
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N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM RELAÇÃO N:K PARA OS ESTÁDIOS FENOLÓGICOS DE MELÃO RENDILHADO CULTIVADO EM HIDROPONIACucumis melo. Nutrição mineral. Cultivo protegido. Cultivo sem solo.Cucumis melo. Mineral nutrition. Protected cultivation. Soilless cultivation.The adequate ratio in the supply of nitrogen (N) and potassium (K) for each phenological growth stage of melon is fundamental for its growth and development with the maximization of the dry mass partition between the vegetative and reproductive parts. The objective of this study was to evaluate the influence of N and K concentrations in two phenological growth stages (vegetative and reproductive stage) of melon and obtain the best N:K ratio for each one. In the first stage, four concentrations of N (8, 11, 14 and 17 mmol L-1) and two concentrations of K (4 and 5 mmol L-1) were evaluated in a randomized block design in a 4 × 2 factorial scheme with five replicates. In the second stage, in a 2 × 2 factorial scheme, the combinations of the two concentrations of N that generated the best characteristics in the previous stage and two concentrations of K (4.5 and 9.0 mmol L-1) were evaluated. The increase of the N concentration in the vegetative stage promoted the increase of the N, P and S content of leaves and the reduction of K, Ca and Mg. Moreover, it increased the number of leaves, the height of the plant (vertically tutored) and the leaf area. Therefore, 17:5 mmol L-1 was considered as the best N:K ratio for the vegetative stage. In the second stage, there was no effect of N and K concentrations on leaf area, yield and fruit quality. So, 14:4.5 mmol L-1 was considered as the best N:K ratio for the reproductive stage. A adequada relação no fornecimento de nitrogênio (N) e potássio (K) para cada estádio fenológico do meloeiro é fundamental para seu crescimento e desenvolvimento, com maximização da partição de massa seca entre as partes vegetativas e reprodutivas. O objetivo deste trabalho foi avaliar a influência de concentrações de N e K para duas fases fenológicas (vegetativa e reprodutiva) do meloeiro e obter a melhor relação N:K para cada uma delas. Na primeira fase, foram avaliadas quatro concentrações de N (8, 11, 14 e 17 mmol L-1) e duas concentrações de K (4 e 5 mmol L-1), em delineamento experimental de blocos ao acaso, em esquema fatorial 4x2, com cinco repetições. Na segunda fase, em esquema fatorial 2x2, foram avaliadas as combinações das duas concentrações de N que geraram as melhores características na fase anterior e duas concentrações de K (4,5 e 9,0 mmol L-1). O aumento da concentração de N na fase vegetativa promoveu o aumento dos teores foliares de N, P e S e a redução de K, Ca e Mg. Além disso, aumentou o número de folhas, a altura da planta (tutorada verticalmente) e a área foliar. Por isso, 17:5 mmol L-1 foi considerada como melhor relação N:K para a fase vegetativa. Na segunda fase, não houve efeito das concentrações de N e de K sobre a área foliar, produtividade e a qualidade dos frutos do meloeiro e, assim, considerou-se 14:4,5 mmol L-1 como a melhor relação N:K para a fase reprodutiva. Universidade Federal Rural do Semi-Árido2020-02-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/876410.1590/1983-21252020v33n112rcREVISTA CAATINGA; Vol. 33 No. 01 (2020); 108-115Revista Caatinga; v. 33 n. 01 (2020); 108-1151983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/8764/10160Copyright (c) 2020 Revista Caatingainfo:eu-repo/semantics/openAccessNascimento, Camila SenoNascimento, Carolina SenoCecílio Filho, Arthur Bernardes2023-07-20T18:27:00Zoai:ojs.periodicos.ufersa.edu.br:article/8764Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:42.256062Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM RELAÇÃO N:K PARA OS ESTÁDIOS FENOLÓGICOS DE MELÃO RENDILHADO CULTIVADO EM HIDROPONIA |
title |
N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM |
spellingShingle |
N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM Nascimento, Camila Seno Cucumis melo. Nutrição mineral. Cultivo protegido. Cultivo sem solo. Cucumis melo. Mineral nutrition. Protected cultivation. Soilless cultivation. |
title_short |
N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM |
title_full |
N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM |
title_fullStr |
N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM |
title_full_unstemmed |
N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM |
title_sort |
N:K RATIO FOR PHENOLOGICAL GROWTH STAGES OF NET MELON CULTIVATED IN NFT HYDROPONIC SYSTEM |
author |
Nascimento, Camila Seno |
author_facet |
Nascimento, Camila Seno Nascimento, Carolina Seno Cecílio Filho, Arthur Bernardes |
author_role |
author |
author2 |
Nascimento, Carolina Seno Cecílio Filho, Arthur Bernardes |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Nascimento, Camila Seno Nascimento, Carolina Seno Cecílio Filho, Arthur Bernardes |
dc.subject.por.fl_str_mv |
Cucumis melo. Nutrição mineral. Cultivo protegido. Cultivo sem solo. Cucumis melo. Mineral nutrition. Protected cultivation. Soilless cultivation. |
topic |
Cucumis melo. Nutrição mineral. Cultivo protegido. Cultivo sem solo. Cucumis melo. Mineral nutrition. Protected cultivation. Soilless cultivation. |
description |
The adequate ratio in the supply of nitrogen (N) and potassium (K) for each phenological growth stage of melon is fundamental for its growth and development with the maximization of the dry mass partition between the vegetative and reproductive parts. The objective of this study was to evaluate the influence of N and K concentrations in two phenological growth stages (vegetative and reproductive stage) of melon and obtain the best N:K ratio for each one. In the first stage, four concentrations of N (8, 11, 14 and 17 mmol L-1) and two concentrations of K (4 and 5 mmol L-1) were evaluated in a randomized block design in a 4 × 2 factorial scheme with five replicates. In the second stage, in a 2 × 2 factorial scheme, the combinations of the two concentrations of N that generated the best characteristics in the previous stage and two concentrations of K (4.5 and 9.0 mmol L-1) were evaluated. The increase of the N concentration in the vegetative stage promoted the increase of the N, P and S content of leaves and the reduction of K, Ca and Mg. Moreover, it increased the number of leaves, the height of the plant (vertically tutored) and the leaf area. Therefore, 17:5 mmol L-1 was considered as the best N:K ratio for the vegetative stage. In the second stage, there was no effect of N and K concentrations on leaf area, yield and fruit quality. So, 14:4.5 mmol L-1 was considered as the best N:K ratio for the reproductive stage. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-02-14 |
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 |
https://periodicos.ufersa.edu.br/caatinga/article/view/8764 10.1590/1983-21252020v33n112rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/8764 |
identifier_str_mv |
10.1590/1983-21252020v33n112rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/8764/10160 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 33 No. 01 (2020); 108-115 Revista Caatinga; v. 33 n. 01 (2020); 108-115 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674027873992704 |