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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
09/03/2021 |
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Data da última atualização: |
10/03/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SETE, P. B.; CIOTTA, M. N.; NAVA, G.; STEFANELLO, L. de O.; BRACKMANN, A.; BERGHETTI, M. R. P.; CADONÁ, E. A.; BRUNETTO, G. |
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Afiliação: |
PAULA BEATRIZ SETE; MARLISE NARA CIOTTA; GILBERTO NAVA, CPACT; LINCON DE OLIVEIRA STEFANELLO; AURI BRACKMANN; MAGNO ROBERTO PASQUETTI BERGHETTI; ELIANA APARECIDA CADONÁ; GUSTAVO BRUNETTO. |
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Título: |
Potassium fertilization effects on quality, economics, and yield in a pear orchard. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Agronomy Journal, v.112, n. 4, p. 3065-3075, 2020. |
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DOI: |
https://doi.org/10.1002/agj2.20235 |
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Idioma: |
Inglês |
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Conteúdo: |
Potassium (K) nutrient existent in the soil does not always supply pear tree (Pyrus communis L.) demand, which makes the use of potassium-based fertilizer necessary. The objective of this study was to evaluate the impact of potassium fertilization on yield and pears quality in order to establish critical K levels in soil and leaves. The treatments consisted of K application rates of control, 40, 80, 120 and 160 kg K2O ha?1 yr?1 during four crops (2013 to 2017). The fruit quantity, mass and yield were evaluated, and leaves were collected for nutrient analysis. Stratified soil samples were collected, prepared and subjected to exchangeable K extraction by Mehlich-1. In the last two crops, peel color, ethylene production, and respiratory rate were also evaluated after 90 days inside a controlled atmosphere storage chamber. After storage, pears were submitted to a shelf life of 7 days to evaluate the epidermis color, ethylene production, respiratory rate, total titratable acidity (TTA), soluble solids (SS), and pulp firmness. Potassium fertilization increased the exchangeable K contents in the soil, but it was not always correlated with an increase of K concentration in the leaves and fruit. The most economical dose was 45.40 kg K2O ha?1 in the 2016/2017 crop season. It was not possible to estimate K critical levels in the soil and leaves. The fruits submitted to higher doses of K showed the lowest values of ethylene production and respiration rate, which resulted in an increase in storage life in cold rooms and on the shelves. MenosPotassium (K) nutrient existent in the soil does not always supply pear tree (Pyrus communis L.) demand, which makes the use of potassium-based fertilizer necessary. The objective of this study was to evaluate the impact of potassium fertilization on yield and pears quality in order to establish critical K levels in soil and leaves. The treatments consisted of K application rates of control, 40, 80, 120 and 160 kg K2O ha?1 yr?1 during four crops (2013 to 2017). The fruit quantity, mass and yield were evaluated, and leaves were collected for nutrient analysis. Stratified soil samples were collected, prepared and subjected to exchangeable K extraction by Mehlich-1. In the last two crops, peel color, ethylene production, and respiratory rate were also evaluated after 90 days inside a controlled atmosphere storage chamber. After storage, pears were submitted to a shelf life of 7 days to evaluate the epidermis color, ethylene production, respiratory rate, total titratable acidity (TTA), soluble solids (SS), and pulp firmness. Potassium fertilization increased the exchangeable K contents in the soil, but it was not always correlated with an increase of K concentration in the leaves and fruit. The most economical dose was 45.40 kg K2O ha?1 in the 2016/2017 crop season. It was not possible to estimate K critical levels in the soil and leaves. The fruits submitted to higher doses of K showed the lowest values of ethylene production and respiration rate, which resulted in an increase ... Mostrar Tudo |
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Palavras-Chave: |
Crop nutrit ion; Soi l fert i l i ty. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02268naa a2200241 a 4500
001 2130561
005 2021-03-10
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1002/agj2.20235$2DOI
100 1 $aSETE, P. B.
245 $aPotassium fertilization effects on quality, economics, and yield in a pear orchard.$h[electronic resource]
260 $c2020
520 $aPotassium (K) nutrient existent in the soil does not always supply pear tree (Pyrus communis L.) demand, which makes the use of potassium-based fertilizer necessary. The objective of this study was to evaluate the impact of potassium fertilization on yield and pears quality in order to establish critical K levels in soil and leaves. The treatments consisted of K application rates of control, 40, 80, 120 and 160 kg K2O ha?1 yr?1 during four crops (2013 to 2017). The fruit quantity, mass and yield were evaluated, and leaves were collected for nutrient analysis. Stratified soil samples were collected, prepared and subjected to exchangeable K extraction by Mehlich-1. In the last two crops, peel color, ethylene production, and respiratory rate were also evaluated after 90 days inside a controlled atmosphere storage chamber. After storage, pears were submitted to a shelf life of 7 days to evaluate the epidermis color, ethylene production, respiratory rate, total titratable acidity (TTA), soluble solids (SS), and pulp firmness. Potassium fertilization increased the exchangeable K contents in the soil, but it was not always correlated with an increase of K concentration in the leaves and fruit. The most economical dose was 45.40 kg K2O ha?1 in the 2016/2017 crop season. It was not possible to estimate K critical levels in the soil and leaves. The fruits submitted to higher doses of K showed the lowest values of ethylene production and respiration rate, which resulted in an increase in storage life in cold rooms and on the shelves.
653 $aCrop nutrit ion
653 $aSoi l fert i l i ty
700 1 $aCIOTTA, M. N.
700 1 $aNAVA, G.
700 1 $aSTEFANELLO, L. de O.
700 1 $aBRACKMANN, A.
700 1 $aBERGHETTI, M. R. P.
700 1 $aCADONÁ, E. A.
700 1 $aBRUNETTO, G.
773 $tAgronomy Journal$gv.112, n. 4, p. 3065-3075, 2020.
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| Registros recuperados : 39 | |
| 3. |  | CRUZ, J. C.; GARCIA, J. C.; ALBERNAZ, W. M. Caracterização de sistemas de produção de milho na região de Sete Lagoas, MG. In: CONGRESSO NACIONAL DE MILHO E SORGO, 26.; SIMPÓSIO BRASILEIRO SOBRE A LAGARTA-DO-CARTUCHO, SPODOPTERA FRUGIPERDA, 2.; SIMPÓSIO SOBRE COLLETOTRICHUM GRAMINICOLA, 1., 2006, Belo Horizonte. Inovação para sistemas integrados de produção: trabalhos apresentados. [Sete Lagoas]: ABMS, 2006. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 7. | | ALVARENGA, R. C.; NETO, M. M. G.; ALBERNAZ, W. M.; VIANA, M. C. M. Integração lavoura-pecuária na região Central de Minas Gerais. In: SIMPÓSIO, 7.; CONGRESSO DE FORRAGICULTURA E PASTAGENS, 3., 2009, Lavras: UFLA, 2009. Anais... Lavras: UFLA, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 9. | | VIANA, M. C. M.; ALVARENGA, R. C.; GONTIJO NETO, M. M.; BOTELHO, W.; ALBERNAZ, W. M. Integração lavoura/pecuária. In: YAMAGUCHI, L. C. T.; MENDES, L. C. R.; LIMA, I. B. de; RODRIGUES, C. do C.; RESENDE, M. L. de. (Ed.). Aspectos sócio-econômicos e ambientais da produção de leite. Juiz de Fora: Embrapa Gado de Leite, 2007. cap. 10, p. 125-134.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 10. | | NOCE, M. A.; ALBERNAZ, W. M.; CARVALHO, D. de O.; CHAVES, F. F. Transferência de tecnologias associadas à eficácia da adubação orgânica com cama de frango em sistema de integração lavoura-pecuária-floresta. In: CONGRESSO NACIONAL DE MILHO E SORGO, 28.; SIMPÓSIO BRASILEIRO SOBRE A LAGARTA DO CARTUCHO, 4., 2010, Goiânia. Potencialidades, desafios e sustentabilidade: resumos expandidos... Sete Lagoas: ABMS, 2010. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 13. | | MATRANGOLO, W. J. R.; OLIVEIRA, M. F. de; ALBERNAZ, W. M.; SILVA, I. H. S. da; MIRANDA, G. A. Percepção ambiental de produtores de milho relativa às plantas espontâneas na região Central de Minas Gerais. In: CONGRESSO INTERNACIONAL DE TECNOLOGIA PARA O MEIO AMBIENTE, 3.; SEMINÁRIO DE GESTÃO AMBIENTAL NA AGROPECUÁRIA, 3., 2012, Bento Gonçalves. Anais. Caxias do Sul: Universidade de Caxias do Sul, 2012. 1 CD-ROM.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 16. | | ALVARENGA, R. C.; ALBERNAZ, W. M.; VIANA, M. C. M.; GONTIJO NETO, M. M.; PINTO JUNIOR, E. de S. Integração Lavoura-Pecuária-Floresta em latossolo vermelho distrófico de Maravilhas-MG, região do cerrado: implantação do eucalipto e do milho e resultados do primeiro ano. In: CONGRESSO NACIONAL DE MILHO E SORGO, 28.; SIMPÓSIO BRASILEIRO SOBRE A LAGARTA DO CARTUCHO, 4., 2010, Goiânia. Potencialidades, desafios e sustentabilidade: resumos expandidos... Sete Lagoas: ABMS, 2010. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 18. | | VIANA, M. C. M.; GONTIJO NETO, M. M.; ALVARENGA, R. C.; ALBERNAZ, W. M.; MENDES, M. A. Cultura do milho na integração lavoura-pecuária-floresta. Jornal Cooperando, Sete Lagoas, ano 44, n. 512, p. 6, ago. 2012.| Tipo: Artigo de Divulgação na Mídia |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 19. | | CRUZ, J. C.; MONTEIRO, M. A. R.; LOUREIRO, J. E.; PEREIRA FILHO, I. A.; NOCE, M. A.; VIANA, A. C.; ALBERNAZ, W. M. Avaliação de cultivares de milho na região de Sete Lagoas, MG. Sete Lagoas: Embrapa Milho e Sorgo, 2005. 6 p. (Embrapa Milho e Sorgo. Circular técnica, 65).| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 39 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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