Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
Texto Completo: | https://repositorio.ufersa.edu.br/handle/prefix/3727 |
Resumo: | The sunflower (Helianthus annus L.) has been gaining prominence in the world market, because it presents high capacity in oil production, with excellent quality in its achenes. Due to the great nutritional requirement of this crop, especially the potassium nutrient, its supply through fertilization via fertigation, the increase in precision and the use of split doses favor its absorption by the plant, for maximum yield in productive and economic efficiency. In this sense, experiments were conducted in two agricultural crops in 2016 and 2017 to evaluate the efficient use of fertirrigated potassium doses in sunflower cultivars in the northeastern semiarid region, Mossoró-RN. The experimental design was in randomized blocks, in subdivided plots, with four replications. In the plots, five potassium doses were evaluated: 0, 30, 60, 90 and 120 kg ha-1 of K2O, and in the subplots, four sunflower cultivars: Aguará 6, Altis 99, Multissol and BRS 122. The evaluated production characteristics were: Potassium content in the diagnostic leaf (TKF), mass of a thousand achenes (MMA), yield of achenes (PA), oil content (TO) and oil productivity (PO). The potassium doses increased in the productive results of the agricultural crops, the crop 2 obtained a better result in comparison with the harvest 1. The maximum yields of achenes were 77.7; 80.2; 73.7 and 79.9 kg ha-1 of K2O in crop 1, and 65.9; 69.5; 70.4 and 69.1 kg ha-1 of K2O in crop 2, respectively, for the cultivars Aguará 6, Altis 99, Multissol and BRS 122. The cultivars Aguará 6 and Altis 99 obtained the highest yields of achenes and oil in the two agricultural crops. From the economic study, it was verified that the doses of potassium influenced in all the economic variables, through the results obtained between the two agricultural crops. The highest net income was obtained by cultivars Aguará 6 and Altis 99 in the amount of R$ 3,416.09 and R$ 2,462.07 in crop 1, and R$ 2,287.01 and R$ 1,861.99 in crop 2. Variables of nutritional efficiency of the sunflower fertirrigado with potassium, the cultivars showed variations of behavior in the evaluated efficiencies as a function of potassium doses. The doses of 90 and 120 kg ha-1 of K2O, as well as the greater accumulation in the plant, caused a reduction in the value of nutritional efficiencies, and the cultivar Aguará 6 obtained the best result with the dose of 60 kg ha-1 of K2O, showing enough efficiency in the use and accumulation of this nutrient in the two agricultural crops |
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Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiroHelianthus annuus LAdubação potássicaIndicadores econômicosEficiência nutricionalHelianthus annuus LPotassium fertilizationEconomic indicatorsNutritional efficiencyCIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIAThe sunflower (Helianthus annus L.) has been gaining prominence in the world market, because it presents high capacity in oil production, with excellent quality in its achenes. Due to the great nutritional requirement of this crop, especially the potassium nutrient, its supply through fertilization via fertigation, the increase in precision and the use of split doses favor its absorption by the plant, for maximum yield in productive and economic efficiency. In this sense, experiments were conducted in two agricultural crops in 2016 and 2017 to evaluate the efficient use of fertirrigated potassium doses in sunflower cultivars in the northeastern semiarid region, Mossoró-RN. The experimental design was in randomized blocks, in subdivided plots, with four replications. In the plots, five potassium doses were evaluated: 0, 30, 60, 90 and 120 kg ha-1 of K2O, and in the subplots, four sunflower cultivars: Aguará 6, Altis 99, Multissol and BRS 122. The evaluated production characteristics were: Potassium content in the diagnostic leaf (TKF), mass of a thousand achenes (MMA), yield of achenes (PA), oil content (TO) and oil productivity (PO). The potassium doses increased in the productive results of the agricultural crops, the crop 2 obtained a better result in comparison with the harvest 1. The maximum yields of achenes were 77.7; 80.2; 73.7 and 79.9 kg ha-1 of K2O in crop 1, and 65.9; 69.5; 70.4 and 69.1 kg ha-1 of K2O in crop 2, respectively, for the cultivars Aguará 6, Altis 99, Multissol and BRS 122. The cultivars Aguará 6 and Altis 99 obtained the highest yields of achenes and oil in the two agricultural crops. From the economic study, it was verified that the doses of potassium influenced in all the economic variables, through the results obtained between the two agricultural crops. The highest net income was obtained by cultivars Aguará 6 and Altis 99 in the amount of R$ 3,416.09 and R$ 2,462.07 in crop 1, and R$ 2,287.01 and R$ 1,861.99 in crop 2. Variables of nutritional efficiency of the sunflower fertirrigado with potassium, the cultivars showed variations of behavior in the evaluated efficiencies as a function of potassium doses. The doses of 90 and 120 kg ha-1 of K2O, as well as the greater accumulation in the plant, caused a reduction in the value of nutritional efficiencies, and the cultivar Aguará 6 obtained the best result with the dose of 60 kg ha-1 of K2O, showing enough efficiency in the use and accumulation of this nutrient in the two agricultural cropsO girassol (Helianthus annus L.) vem ganhando bastante destaque no mercado mundial, por apresentar alta capacidade em produção de óleo, com execelente qualidade em seus aquênios. Devido à grande exigência nutricional desta cultura, principalmente do nutriente potássio, seu fornecimento por meio da adubação via fertirrigação, o aumento na precisão e a utilização de doses parceladas favorecem sua absorção pela planta, para obtenção máxima em eficiência produtiva e econômica. Neste sentido, foram conduzidos experimentos em duas safras agrícolas nos anos de 2016 e 2017, para avaliar o uso eficiente de doses de potássio fertirrigadas em cultivares de girassol no semiárido nordestino, Mossoró-RN. O delineamento experimental utilizado foi em blocos ao acaso, em parcelas subdivididas, com quatro repetições. Nas parcelas, foram avaliadas cinco doses de potássio: 0, 30, 60, 90 e 120 kg ha-1 de K2O, e nas subparcelas, quatro cultivares de girassol: Aguará 6, Altis 99, Multissol e BRS 122. As características de produção avaliadas foram: Teor de potássio na folha diagnóstica (TKF), massa de mil aquênios (MMA), produtividade de aquênios (PA), teor de óleo (TO) e produtividade de óleo (PO). As doses de potássio incrementaram nos resultados produtivos das safras agrícolas, a safra 2 obteve melhor resultado do que a safra 1. As doses de máxima produtividade de aquênios foram de 77,7; 80,2; 73,7 e 79,9 kg ha-1 de K2O na safra 1 e de 65,9; 69,5; 70,4 e 69,1 kg ha-1 de K2O na safra 2, respectivamente, para os cultivares Aguará 6, Altis 99, Multissol e BRS 122. Os cultivares Aguará 6 e Altis 99 obtiveram as maiores produtividades de aquênios e de óleo nas duas safras agrícolas. A partir do estudo econômico, verificou-se que as doses de potássio influenciaram em todas as variáveis econômicas, através dos resultados obtidos entre as duas safras agrícolas. A maior renda líquida foi alcançada pelos cultivares Aguará 6 e Altis 99, no valor de R$ 3.416,09 e R$ 2.462,07 na safra 1 e de R$ 2.237,01 e R$ 1.861,99 na safra 2. Nas variáveis de eficiência nutricional do girassol fertirrigado com potássio, os cultivares demonstraram variações de comportamento nas eficiências avaliadas em função das doses de potássio. As doses de 90 e 120 kg ha-1 de K2O, assim como o maior acúmulo na planta, ocasionaram redução no valor das eficiências nutricionais, e o cultivar Aguará 6 obteve o melhor resultado com a dose de 60 kg ha-1 de K2O, demonstrando bastante eficiência em aproveitamento e acúmulo deste nutriente nas duas safras agrícolasCoordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESUniversidade Federal Rural do Semi-ÁridoBrasilCentro de Ciências Agrárias - CCAUFERSAPrograma de Pós-Graduação em FitotecniaSilveira, Lindomar Maria da88207340444http://lattes.cnpq.br/2988333573887017Barros Júnior, Aurélio Paes02835623400http://lattes.cnpq.br/7834686741013271Santos, Elizangela Cabral dos02223878407http://lattes.cnpq.br/0404594071278199Silva, Jaeveson da96793120468http://lattes.cnpq.br/2082553893882256Moura, Karidja Kalliany Carlos de Freitas03712151454http://lattes.cnpq.br/291195323117843Santos, Allysson Pereira dos2020-01-28T21:36:09Z2019-05-082020-01-28T21:36:09Z2018-12-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfCitação com autor incluído no texto: Santos (2018) Citação com autor não incluído no texto: (SANTOS, 2018)https://repositorio.ufersa.edu.br/handle/prefix/3727porSANTOS, Allysson Pereira dos. Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro. 2018. 92 f. Tese (Doutorado em Fitotecnia), Universidade Federal Rural do Semi-Árido, Mossoró, 2018.CC-BY-SAinfo:eu-repo/semantics/openAccessreponame:Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU)instname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSA2023-12-14T23:00:03Zoai:repositorio.ufersa.edu.br:prefix/3727Repositório Institucionalhttps://repositorio.ufersa.edu.br/PUBhttps://repositorio.ufersa.edu.br/server/oai/requestrepositorio@ufersa.edu.br || admrepositorio@ufersa.edu.bropendoar:2023-12-14T23:00:03Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) - Universidade Federal Rural do Semi-Árido (UFERSA)false |
dc.title.none.fl_str_mv |
Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro |
title |
Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro |
spellingShingle |
Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro Santos, Allysson Pereira dos Helianthus annuus L Adubação potássica Indicadores econômicos Eficiência nutricional Helianthus annuus L Potassium fertilization Economic indicators Nutritional efficiency CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
title_short |
Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro |
title_full |
Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro |
title_fullStr |
Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro |
title_full_unstemmed |
Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro |
title_sort |
Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro |
author |
Santos, Allysson Pereira dos |
author_facet |
Santos, Allysson Pereira dos |
author_role |
author |
dc.contributor.none.fl_str_mv |
Silveira, Lindomar Maria da 88207340444 http://lattes.cnpq.br/2988333573887017 Barros Júnior, Aurélio Paes 02835623400 http://lattes.cnpq.br/7834686741013271 Santos, Elizangela Cabral dos 02223878407 http://lattes.cnpq.br/0404594071278199 Silva, Jaeveson da 96793120468 http://lattes.cnpq.br/2082553893882256 Moura, Karidja Kalliany Carlos de Freitas 03712151454 http://lattes.cnpq.br/291195323117843 |
dc.contributor.author.fl_str_mv |
Santos, Allysson Pereira dos |
dc.subject.por.fl_str_mv |
Helianthus annuus L Adubação potássica Indicadores econômicos Eficiência nutricional Helianthus annuus L Potassium fertilization Economic indicators Nutritional efficiency CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
topic |
Helianthus annuus L Adubação potássica Indicadores econômicos Eficiência nutricional Helianthus annuus L Potassium fertilization Economic indicators Nutritional efficiency CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
description |
The sunflower (Helianthus annus L.) has been gaining prominence in the world market, because it presents high capacity in oil production, with excellent quality in its achenes. Due to the great nutritional requirement of this crop, especially the potassium nutrient, its supply through fertilization via fertigation, the increase in precision and the use of split doses favor its absorption by the plant, for maximum yield in productive and economic efficiency. In this sense, experiments were conducted in two agricultural crops in 2016 and 2017 to evaluate the efficient use of fertirrigated potassium doses in sunflower cultivars in the northeastern semiarid region, Mossoró-RN. The experimental design was in randomized blocks, in subdivided plots, with four replications. In the plots, five potassium doses were evaluated: 0, 30, 60, 90 and 120 kg ha-1 of K2O, and in the subplots, four sunflower cultivars: Aguará 6, Altis 99, Multissol and BRS 122. The evaluated production characteristics were: Potassium content in the diagnostic leaf (TKF), mass of a thousand achenes (MMA), yield of achenes (PA), oil content (TO) and oil productivity (PO). The potassium doses increased in the productive results of the agricultural crops, the crop 2 obtained a better result in comparison with the harvest 1. The maximum yields of achenes were 77.7; 80.2; 73.7 and 79.9 kg ha-1 of K2O in crop 1, and 65.9; 69.5; 70.4 and 69.1 kg ha-1 of K2O in crop 2, respectively, for the cultivars Aguará 6, Altis 99, Multissol and BRS 122. The cultivars Aguará 6 and Altis 99 obtained the highest yields of achenes and oil in the two agricultural crops. From the economic study, it was verified that the doses of potassium influenced in all the economic variables, through the results obtained between the two agricultural crops. The highest net income was obtained by cultivars Aguará 6 and Altis 99 in the amount of R$ 3,416.09 and R$ 2,462.07 in crop 1, and R$ 2,287.01 and R$ 1,861.99 in crop 2. Variables of nutritional efficiency of the sunflower fertirrigado with potassium, the cultivars showed variations of behavior in the evaluated efficiencies as a function of potassium doses. The doses of 90 and 120 kg ha-1 of K2O, as well as the greater accumulation in the plant, caused a reduction in the value of nutritional efficiencies, and the cultivar Aguará 6 obtained the best result with the dose of 60 kg ha-1 of K2O, showing enough efficiency in the use and accumulation of this nutrient in the two agricultural crops |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-10 2019-05-08 2020-01-28T21:36:09Z 2020-01-28T21:36:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Citação com autor incluído no texto: Santos (2018) Citação com autor não incluído no texto: (SANTOS, 2018) https://repositorio.ufersa.edu.br/handle/prefix/3727 |
identifier_str_mv |
Citação com autor incluído no texto: Santos (2018) Citação com autor não incluído no texto: (SANTOS, 2018) |
url |
https://repositorio.ufersa.edu.br/handle/prefix/3727 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
SANTOS, Allysson Pereira dos. Girassol fertirrigado com doses de potássio em duas safras agrícolas nos semiárido brasileiro. 2018. 92 f. Tese (Doutorado em Fitotecnia), Universidade Federal Rural do Semi-Árido, Mossoró, 2018. |
dc.rights.driver.fl_str_mv |
CC-BY-SA info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
CC-BY-SA |
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 Brasil Centro de Ciências Agrárias - CCA UFERSA Programa de Pós-Graduação em Fitotecnia |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido Brasil Centro de Ciências Agrárias - CCA UFERSA Programa de Pós-Graduação em Fitotecnia |
dc.source.none.fl_str_mv |
reponame:Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
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Universidade Federal Rural do Semi-Árido (UFERSA) |
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UFERSA |
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UFERSA |
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Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
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Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
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Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) - Universidade Federal Rural do Semi-Árido (UFERSA) |
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repositorio@ufersa.edu.br || admrepositorio@ufersa.edu.br |
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1809747493907333120 |