Organic residue with high potassium content on sunflower cultivars

Detalhes bibliográficos
Autor(a) principal: Moura,Maria da Conceição Freitas
Data de Publicação: 2018
Outros Autores: Dutra,Alek Sandro, Grangeiro,Darlene Maia, Sousa,Wesley do Nascimento
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista ciência agronômica (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400663
Resumo: ABSTRACT The use of organic sources that include levels of potassium, in addition to having an influence on the achenes and on plant development, reduces production costs and has less impact on the environment. The aim of this study was to evaluate the efficiency of fertilisation using organic residue generated by the coffee roasting process, which has a high level of potassium, on agronomic characteristics, production components and physiological quality of the achenes. The experimental design was a 2x4+2 factorial scheme, with two cultivars, four doses of organic residue (T1=0, T2=40, T3=80 and T4=120 kg K ha-1), plus a control of potassium chloride at a dose of 60 kg K ha-1 for each cultivar. The variables under analysis were plant height, stem diameter at ground level, capitulum diameter, number of leaves, leaf area, leaf area index, 1000-achene weight, productivity and oil content. The physiological quality of the achenes was also determined by the germination test, first germination count, seedling emergence, emergence speed index, shoot length, shoot dry weight and accelerated-ageing test. Fertilisation with organic residue is efficient for the agronomic characteristics and production components of the sunflower; doses of less than 40 kg K ha-1 or over 70 kg K ha-1 from the organic residue may have a negative effect on the physiological quality of sunflower achenes.
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spelling Organic residue with high potassium content on sunflower cultivarsHelianthus annuus L.FertiliserProductivityAchenesABSTRACT The use of organic sources that include levels of potassium, in addition to having an influence on the achenes and on plant development, reduces production costs and has less impact on the environment. The aim of this study was to evaluate the efficiency of fertilisation using organic residue generated by the coffee roasting process, which has a high level of potassium, on agronomic characteristics, production components and physiological quality of the achenes. The experimental design was a 2x4+2 factorial scheme, with two cultivars, four doses of organic residue (T1=0, T2=40, T3=80 and T4=120 kg K ha-1), plus a control of potassium chloride at a dose of 60 kg K ha-1 for each cultivar. The variables under analysis were plant height, stem diameter at ground level, capitulum diameter, number of leaves, leaf area, leaf area index, 1000-achene weight, productivity and oil content. The physiological quality of the achenes was also determined by the germination test, first germination count, seedling emergence, emergence speed index, shoot length, shoot dry weight and accelerated-ageing test. Fertilisation with organic residue is efficient for the agronomic characteristics and production components of the sunflower; doses of less than 40 kg K ha-1 or over 70 kg K ha-1 from the organic residue may have a negative effect on the physiological quality of sunflower achenes.Universidade Federal do Ceará2018-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400663Revista Ciência Agronômica v.49 n.4 2018reponame:Revista ciência agronômica (Online)instname:Universidade Federal do Ceará (UFC)instacron:UFC10.5935/1806-6690.20180075info:eu-repo/semantics/openAccessMoura,Maria da Conceição FreitasDutra,Alek SandroGrangeiro,Darlene MaiaSousa,Wesley do Nascimentoeng2018-10-03T00:00:00Zoai:scielo:S1806-66902018000400663Revistahttp://www.ccarevista.ufc.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||alekdutra@ufc.br|| ccarev@ufc.br1806-66900045-6888opendoar:2018-10-03T00:00Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Organic residue with high potassium content on sunflower cultivars
title Organic residue with high potassium content on sunflower cultivars
spellingShingle Organic residue with high potassium content on sunflower cultivars
Moura,Maria da Conceição Freitas
Helianthus annuus L.
Fertiliser
Productivity
Achenes
title_short Organic residue with high potassium content on sunflower cultivars
title_full Organic residue with high potassium content on sunflower cultivars
title_fullStr Organic residue with high potassium content on sunflower cultivars
title_full_unstemmed Organic residue with high potassium content on sunflower cultivars
title_sort Organic residue with high potassium content on sunflower cultivars
author Moura,Maria da Conceição Freitas
author_facet Moura,Maria da Conceição Freitas
Dutra,Alek Sandro
Grangeiro,Darlene Maia
Sousa,Wesley do Nascimento
author_role author
author2 Dutra,Alek Sandro
Grangeiro,Darlene Maia
Sousa,Wesley do Nascimento
author2_role author
author
author
dc.contributor.author.fl_str_mv Moura,Maria da Conceição Freitas
Dutra,Alek Sandro
Grangeiro,Darlene Maia
Sousa,Wesley do Nascimento
dc.subject.por.fl_str_mv Helianthus annuus L.
Fertiliser
Productivity
Achenes
topic Helianthus annuus L.
Fertiliser
Productivity
Achenes
description ABSTRACT The use of organic sources that include levels of potassium, in addition to having an influence on the achenes and on plant development, reduces production costs and has less impact on the environment. The aim of this study was to evaluate the efficiency of fertilisation using organic residue generated by the coffee roasting process, which has a high level of potassium, on agronomic characteristics, production components and physiological quality of the achenes. The experimental design was a 2x4+2 factorial scheme, with two cultivars, four doses of organic residue (T1=0, T2=40, T3=80 and T4=120 kg K ha-1), plus a control of potassium chloride at a dose of 60 kg K ha-1 for each cultivar. The variables under analysis were plant height, stem diameter at ground level, capitulum diameter, number of leaves, leaf area, leaf area index, 1000-achene weight, productivity and oil content. The physiological quality of the achenes was also determined by the germination test, first germination count, seedling emergence, emergence speed index, shoot length, shoot dry weight and accelerated-ageing test. Fertilisation with organic residue is efficient for the agronomic characteristics and production components of the sunflower; doses of less than 40 kg K ha-1 or over 70 kg K ha-1 from the organic residue may have a negative effect on the physiological quality of sunflower achenes.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400663
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400663
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/1806-6690.20180075
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Universidade Federal do Ceará
publisher.none.fl_str_mv Universidade Federal do Ceará
dc.source.none.fl_str_mv Revista Ciência Agronômica v.49 n.4 2018
reponame:Revista ciência agronômica (Online)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Revista ciência agronômica (Online)
collection Revista ciência agronômica (Online)
repository.name.fl_str_mv Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv ||alekdutra@ufc.br|| ccarev@ufc.br
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