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Resposta do feijoeiro a aplicação foliar de potássio

Common bean is a crop of great importance for the state of Paraná. Aiming the success in the cultivation of this species, several techniques are adopted, seeking better conditions for the development of the plant. The foliar nutrients supply to the leaves is an alternative that aims to improve the p...

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Autor principal:	Zanella, Rodrigo
Formato:	Trabalho de Conclusão de Curso (Graduação)
Idioma:	Português
Publicado em:	Universidade Tecnológica Federal do Paraná 2020
Assuntos:	Micronutrientes Solos - Análise Solos - Teor de potássio Adubação foliar Trace elements in nutrition Soils - Analysis Soils - Potassium content Foliar feeding CNPQ::CIENCIAS AGRARIAS
Acesso em linha:	http://repositorio.utfpr.edu.br/jspui/handle/1/14103
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spelling	riut-1-141032020-11-16T20:36:34Z Resposta do feijoeiro a aplicação foliar de potássio Common bean response to foliar applications of potassium Zanella, Rodrigo Finatto, Taciane Campos, José Ricardo da Rocha Baretta, Douglas Rodrigo Finatto, Taciane Micronutrientes Solos - Análise Solos - Teor de potássio Adubação foliar Trace elements in nutrition Soils - Analysis Soils - Potassium content Foliar feeding CNPQ::CIENCIAS AGRARIAS Common bean is a crop of great importance for the state of Paraná. Aiming the success in the cultivation of this species, several techniques are adopted, seeking better conditions for the development of the plant. The foliar nutrients supply to the leaves is an alternative that aims to improve the physiological processes of the plant and increase productivity. In this study were evaluated the agronomic and physiological characters of two common bean cultivars exposed to K foliar spray in differents phonological stages. The experiment was performed in two years; at the first year in Bom Sucesso do Sul, Paraná, 2014/2015 crop season, with the carioca IPR Tangará common bean cultivar. The treatments were: water foliar spray application (200 L ha-1), Bulk® – composed by 20% of a complexing agent for amino acids + 12% of K2O (2 L ha-1 in 200L ha-1 of water) and Fainal K® - composed by 3% of N and 31% of K2O (2 L ha-1 in 200L ha-1 of water) applied in different stages and the combination of these ones: R5, R7, R8, R5+R7, R7+R8, R5+R7+R8. At the second year, 2015/2016 crop season, the experiment was conduced in Pato Branco, Paraná, using the carioca common bean cultivars IPR Tangará and IAC Imperador. For the both cultivars, the applications followed the same formulations and volumes of applications performed in 2014/2015 crop season, modifying just the phenological stages of application and his combinations, being, in this case: R7, R8, e R7+R8. In both years, the experimental design were in random blocks with three replications, in a bifactorial experiment, with different nutrient sources and stages of application. The agronomical characters evaluated were: number of pods for plant (NVP), number of grains for pods (NGV), thousand grain weight (MMG, g) and yield (RG) in kg ha-1, besides the nitrogen percentage (N), phosphorus (P) and potassium (K) in the leaves and grains, and the physiological characters: CO2 assimilation rate (μmol CO2 m-2 s-1), stomatal conductance (mol H2O m-2 s-1), intracellular concentration of CO2 (μmol CO2 mol-1), transpiration rate (mmol H2O m-2 s-1) and water use efficiency (%). The data were submitted to an analysis of variance and comparation of means by Tukey's range test (P<0,05). For all the variables analyzed, there was no significant interaction between K sources and phenological stages of application for the components of yield and physiological parameters of the common bean crop. For 2014/2015 crop season, considering all stages of application, it is noted that both KG and NG the highest average were to Fainal K®, with no difference for Bulk®, but showing higher to water application, due the product having in it’s formulation 31% of K2O, and 3% of N, but without brings increases in productivity. The foliar applications of potassium did not changed the yield components and physiological common bean parameters, independent of the nutrient source and application stage, not bringing productivity gains for both environments and cultivars evaluated. O feijão é uma cultura de grande importância para o estado do Paraná. Para o sucesso no cultivo desta espécie, várias técnicas são adotadas, buscando melhores condições para o desenvolvimento da planta. O fornecimento de nutrientes via foliar é uma alternativa que visa melhorar os processos fisiológicos da planta e aumentar a produtividade. O objetivo do trabalho foi avaliar caracteres agronômicos e fisiológicos de duas cultivares de feijão submetidas ao fornecimento de K via foliar em diferentes estádios fenológicos. O experimento foi conduzido em dois anos. No primeiro ano foi realizado no município de Bom Sucesso do Sul-PR, safra 2014/2015, com a cultivar de feijão carioca IPR Tangará. Os tratamentos foram: aplicação foliar de água (200 L ha-1), Bulk® – composto por 20% de agente complexante por aminoácidos + 12% de K2O (2 L ha-1 em 200L ha-1 de água) e Fainal K® - composto por 3% de N e 31% de K2O (2 L ha-1 em 200L ha-1 de água) aplicados em diferentes estádios e a combinação destes: R5, R7, R8, R5+R7, R7+R8, R5+R7+R8. No segundo ano, safra 2015/2016 o experimento foi conduzido no município de Pato Branco-PR, utilizando as cultivares de feijão carioca IPR Tangará e IAC Imperador. Para ambas as cultivares as aplicações seguiram as mesmas formulações e volumes de aplicações realizados na safra 2014/2015, alterando apenas os estádios fenológicos de aplicação e suas combinações, sendo neste caso: R7, R8, e R7+R8. Em ambos os anos os delineamentos experimentais foram o de blocos ao acaso com três repetições, sendo um experimento bifatorial, com fontes do nutriente e estádios de aplicação diferentes. Foram avaliados caracteres agronômicos: número de legumes por planta (NLP), número de grãos por legume (NGL), massa de mil grãos (MMG, g) e rendimento de grãos (RG) em kg ha-1, além do teor de nitrogênio (N), fósforo (P) e potássio (K) nas folhas e grãos, e os caracteres fisiológicos: taxa de assimilação de CO2 (μmol CO2 m-2 s-1), condutância estomática (mol H2O m-2 s-1), concentração intracelular de CO2 (μmol CO2 mol-1), taxa de transpiração (mmol H2O m-2 s-1) e eficiência do uso de água (%). Os dados foram submetidos a análise de variância e comparação de médias pelo teste de Tukey (P<0,05). Para todas as variáveis analisadas não houve interação significativa entre fontes de K, e estádios de aplicação para os componentes de rendimento e parâmetros fisiológicos da cultura do feijão. Apenas para a safra 2014/2015, considerando a média de todos os estádios de aplicação, nota-se que tanto para KG e para NG as maiores médias ficaram para Fainal K®, não diferindo de Bulk®, mas se mostrando superior a aplicação de água, devido ao produto conter em sua formulação 31% de K2O, e 3% de N, porém sem trazer acréscimos em produtividade. O fornecimento de potássio foliar, não alterou os componentes de rendimento e os parâmetros fisiológicos do feijoeiro, independente da fonte do nutriente e do estádio de aplicação, não trazendo ganhos de produtividade para ambos os ambientes e cultivares avaliadas. 2020-11-16T20:36:34Z 2020-11-16T20:36:34Z 2016-11-24 bachelorThesis ZANELLA, Rodrigo. Resposta do feijoeiro a aplicação foliar de potássio. 2016. 67 f. Trabalho de Conclusão de Curso (Graduação) - Universidade Tecnológica Federal do Paraná, Pato Branco, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/14103 por embargoedAccess application/pdf Universidade Tecnológica Federal do Paraná Pato Branco Brasil Departamento Acadêmico de Ciências Agrárias Agronomia UTFPR
institution	Universidade Tecnológica Federal do Paraná
collection	RIUT
language	Português
topic	Micronutrientes Solos - Análise Solos - Teor de potássio Adubação foliar Trace elements in nutrition Soils - Analysis Soils - Potassium content Foliar feeding CNPQ::CIENCIAS AGRARIAS
spellingShingle	Micronutrientes Solos - Análise Solos - Teor de potássio Adubação foliar Trace elements in nutrition Soils - Analysis Soils - Potassium content Foliar feeding CNPQ::CIENCIAS AGRARIAS Zanella, Rodrigo Resposta do feijoeiro a aplicação foliar de potássio
description	Common bean is a crop of great importance for the state of Paraná. Aiming the success in the cultivation of this species, several techniques are adopted, seeking better conditions for the development of the plant. The foliar nutrients supply to the leaves is an alternative that aims to improve the physiological processes of the plant and increase productivity. In this study were evaluated the agronomic and physiological characters of two common bean cultivars exposed to K foliar spray in differents phonological stages. The experiment was performed in two years; at the first year in Bom Sucesso do Sul, Paraná, 2014/2015 crop season, with the carioca IPR Tangará common bean cultivar. The treatments were: water foliar spray application (200 L ha-1), Bulk® – composed by 20% of a complexing agent for amino acids + 12% of K2O (2 L ha-1 in 200L ha-1 of water) and Fainal K® - composed by 3% of N and 31% of K2O (2 L ha-1 in 200L ha-1 of water) applied in different stages and the combination of these ones: R5, R7, R8, R5+R7, R7+R8, R5+R7+R8. At the second year, 2015/2016 crop season, the experiment was conduced in Pato Branco, Paraná, using the carioca common bean cultivars IPR Tangará and IAC Imperador. For the both cultivars, the applications followed the same formulations and volumes of applications performed in 2014/2015 crop season, modifying just the phenological stages of application and his combinations, being, in this case: R7, R8, e R7+R8. In both years, the experimental design were in random blocks with three replications, in a bifactorial experiment, with different nutrient sources and stages of application. The agronomical characters evaluated were: number of pods for plant (NVP), number of grains for pods (NGV), thousand grain weight (MMG, g) and yield (RG) in kg ha-1, besides the nitrogen percentage (N), phosphorus (P) and potassium (K) in the leaves and grains, and the physiological characters: CO2 assimilation rate (μmol CO2 m-2 s-1), stomatal conductance (mol H2O m-2 s-1), intracellular concentration of CO2 (μmol CO2 mol-1), transpiration rate (mmol H2O m-2 s-1) and water use efficiency (%). The data were submitted to an analysis of variance and comparation of means by Tukey's range test (P<0,05). For all the variables analyzed, there was no significant interaction between K sources and phenological stages of application for the components of yield and physiological parameters of the common bean crop. For 2014/2015 crop season, considering all stages of application, it is noted that both KG and NG the highest average were to Fainal K®, with no difference for Bulk®, but showing higher to water application, due the product having in it’s formulation 31% of K2O, and 3% of N, but without brings increases in productivity. The foliar applications of potassium did not changed the yield components and physiological common bean parameters, independent of the nutrient source and application stage, not bringing productivity gains for both environments and cultivars evaluated.
format	Trabalho de Conclusão de Curso (Graduação)
author	Zanella, Rodrigo
author_sort	Zanella, Rodrigo
title	Resposta do feijoeiro a aplicação foliar de potássio
title_short	Resposta do feijoeiro a aplicação foliar de potássio
title_full	Resposta do feijoeiro a aplicação foliar de potássio
title_fullStr	Resposta do feijoeiro a aplicação foliar de potássio
title_full_unstemmed	Resposta do feijoeiro a aplicação foliar de potássio
title_sort	resposta do feijoeiro a aplicação foliar de potássio
publisher	Universidade Tecnológica Federal do Paraná
publishDate	2020
citation	ZANELLA, Rodrigo. Resposta do feijoeiro a aplicação foliar de potássio. 2016. 67 f. Trabalho de Conclusão de Curso (Graduação) - Universidade Tecnológica Federal do Paraná, Pato Branco, 2016.
url	http://repositorio.utfpr.edu.br/jspui/handle/1/14103
_version_	1805305287482015744
score	10,814766

Resposta do feijoeiro a aplicação foliar de potássio

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