Efficiency of phonolite as a potassium source for Paiaguás palisadegrass
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/67857 |
Resumo: | Potassium chloride (KCl) is the most widely used potassium source to meet crops requirements. However, Brazil’s dependence on imports to meet the national demand demonstrates the need to assess the efficiency of other sources of this nutrient. The present study aimed to assess the agronomic efficiency of phonolite in natura and its mixture with a water-soluble source (KCl), for Paiaguás palisadegrass. The experiment was conducted in a greenhouse, with a sandy clay loam typic Hapludox. A completely randomized block design was used, in a 3 x 5 factorial scheme, consisting of three K sources (KCl, phonolite and a 30 % of KCl + 70 % of phonolite blend) and five doses of the nutrient (0, 50, 100, 150 and 200 mg kg-1), with four replications. The phonolite doses promoted a linear increase in the dry weight production, albeit inferior to KCl for all the cuttings, whereas the KCl (30 %) and phonolite (70 %) blend showed a better fertilization efficiency than phonolite alone, which exhibited an intermediate effect. The agronomic efficiency was 29 % for the phonolite alone and 63 % for the blend, and the critical K levels in the soil and shoots were, respectively, 1.4 mmolc dm-3 and 8.7 g kg-1. KEYWORDS: Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster, potassium fertilizer, potassium silicate. |
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Efficiency of phonolite as a potassium source for Paiaguás palisadegrassEficiência de fonolito como fonte de potássio para capim PaiaguásPotassium chloride (KCl) is the most widely used potassium source to meet crops requirements. However, Brazil’s dependence on imports to meet the national demand demonstrates the need to assess the efficiency of other sources of this nutrient. The present study aimed to assess the agronomic efficiency of phonolite in natura and its mixture with a water-soluble source (KCl), for Paiaguás palisadegrass. The experiment was conducted in a greenhouse, with a sandy clay loam typic Hapludox. A completely randomized block design was used, in a 3 x 5 factorial scheme, consisting of three K sources (KCl, phonolite and a 30 % of KCl + 70 % of phonolite blend) and five doses of the nutrient (0, 50, 100, 150 and 200 mg kg-1), with four replications. The phonolite doses promoted a linear increase in the dry weight production, albeit inferior to KCl for all the cuttings, whereas the KCl (30 %) and phonolite (70 %) blend showed a better fertilization efficiency than phonolite alone, which exhibited an intermediate effect. The agronomic efficiency was 29 % for the phonolite alone and 63 % for the blend, and the critical K levels in the soil and shoots were, respectively, 1.4 mmolc dm-3 and 8.7 g kg-1. KEYWORDS: Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster, potassium fertilizer, potassium silicate.Dentre as alternativas para suprir as demandas de K das culturas, o cloreto de potássio (KCl) é a fonte mais utilizada. Porém, a alta dependência de sua importação para suprir a demanda nacional leva à necessidade de se avaliar a eficiência de outras fontes desse nutriente. Objetivou-se avaliar a eficiência agronômica de fonolito in natura e de sua mistura com uma fonte solúvel em água (KCl), para capim Paiaguás. O experimento foi conduzido em casa-de-vegetação, com Latossolo Vermelho distrófico de textura média, adotando-se delineamento inteiramente casualizado, em esquema fatorial 3 x 5, sendo três fontes (KCl, fonolito e mistura de 30 % de KCl + 70 % de fonolito) e cinco doses (0; 50; 100; 150; e 200 mg kg-1) de K, com quatro repetições. As doses de fonolito promoveram aumento linear na produção de massa seca, mas foi inferior ao KCl em todos os cortes, enquanto a mistura de KCl (30 %) e fonolito (70 %) aumentou a eficiência fertilizante, em relação ao fonolito aplicado exclusivamente, mostrando-se intermediária. A eficiência agronômica foi de 29 e 63 % para o fonolito e a mistura, respectivamente, e os níveis críticos de K no solo e na parte aérea foram, respectivamente, 1,4 mmolc dm-3 e 8,7 g kg-1. PALAVRAS-CHAVE: Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster, fertilizante potássico, silicato potássico.Escola de Agronomia - Universidade Federal de Goiás2021-07-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/67857Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 51 (2021); e67857Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e67857Pesquisa Agropecuária Tropical; v. 51 (2021); e678571983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/67857/37009Copyright (c) 2021 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessCruz, Carlos Augusto Campos daOrioli Júnior, ValdeciBernardes, João Victor SilvaSargentim, Mateus MartiniSilva, Gabriel AugustoKochenborger, Ana Clara Dutra2021-07-29T17:24:25Zoai:ojs.revistas.ufg.br:article/67857Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:32.080127Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Efficiency of phonolite as a potassium source for Paiaguás palisadegrass Eficiência de fonolito como fonte de potássio para capim Paiaguás |
title |
Efficiency of phonolite as a potassium source for Paiaguás palisadegrass |
spellingShingle |
Efficiency of phonolite as a potassium source for Paiaguás palisadegrass Cruz, Carlos Augusto Campos da |
title_short |
Efficiency of phonolite as a potassium source for Paiaguás palisadegrass |
title_full |
Efficiency of phonolite as a potassium source for Paiaguás palisadegrass |
title_fullStr |
Efficiency of phonolite as a potassium source for Paiaguás palisadegrass |
title_full_unstemmed |
Efficiency of phonolite as a potassium source for Paiaguás palisadegrass |
title_sort |
Efficiency of phonolite as a potassium source for Paiaguás palisadegrass |
author |
Cruz, Carlos Augusto Campos da |
author_facet |
Cruz, Carlos Augusto Campos da Orioli Júnior, Valdeci Bernardes, João Victor Silva Sargentim, Mateus Martini Silva, Gabriel Augusto Kochenborger, Ana Clara Dutra |
author_role |
author |
author2 |
Orioli Júnior, Valdeci Bernardes, João Victor Silva Sargentim, Mateus Martini Silva, Gabriel Augusto Kochenborger, Ana Clara Dutra |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Cruz, Carlos Augusto Campos da Orioli Júnior, Valdeci Bernardes, João Victor Silva Sargentim, Mateus Martini Silva, Gabriel Augusto Kochenborger, Ana Clara Dutra |
description |
Potassium chloride (KCl) is the most widely used potassium source to meet crops requirements. However, Brazil’s dependence on imports to meet the national demand demonstrates the need to assess the efficiency of other sources of this nutrient. The present study aimed to assess the agronomic efficiency of phonolite in natura and its mixture with a water-soluble source (KCl), for Paiaguás palisadegrass. The experiment was conducted in a greenhouse, with a sandy clay loam typic Hapludox. A completely randomized block design was used, in a 3 x 5 factorial scheme, consisting of three K sources (KCl, phonolite and a 30 % of KCl + 70 % of phonolite blend) and five doses of the nutrient (0, 50, 100, 150 and 200 mg kg-1), with four replications. The phonolite doses promoted a linear increase in the dry weight production, albeit inferior to KCl for all the cuttings, whereas the KCl (30 %) and phonolite (70 %) blend showed a better fertilization efficiency than phonolite alone, which exhibited an intermediate effect. The agronomic efficiency was 29 % for the phonolite alone and 63 % for the blend, and the critical K levels in the soil and shoots were, respectively, 1.4 mmolc dm-3 and 8.7 g kg-1. KEYWORDS: Urochloa brizantha (Hochst. ex A. Rich.) R. D. Webster, potassium fertilizer, potassium silicate. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-07-29 |
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/67857 |
url |
https://revistas.ufg.br/pat/article/view/67857 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/67857/37009 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Pesquisa Agropecuária Tropical info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 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. 51 (2021); e67857 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e67857 Pesquisa Agropecuária Tropical; v. 51 (2021); e67857 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 |
_version_ |
1799874821062918144 |