Humus M.O. 80 as a seed diluent for direct sowing of lettuce
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/16946 |
Resumo: | M.O. 80, a by-product of lignite production, was used as a seed diluent with the following concentrations: 90, 80, 70, 60, 50 and 0%. A Planet Jr. seed-drill model 300-A was used to sow the treated lettuce seed. Seed use, and thinning operations were recorded. Treatments involving 90 and 80% of M.O. 80 showed economical use of seed in relation to the control (0% of M.O. 80). It was observed that seed-drill discharge increased proportionally with diluent concentration. Concerning to stand the treatment involving 90% of M.O. 80 presented significant differences in comparison to the other treatments. M .O. 80 at a concentration of 90% differed from the levels with respect to thinning 70, 60 and 50%. |
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Humus M.O. 80 as a seed diluent for direct sowing of lettuceHumus M.O 80 como diluente na semeadura mecânica da alface ( Lactuca sativa)Lettuce; Lactuca sativa; seeding; mechanization; seed diluent; Humus M.O. 80Alface; Lactuca sativa; semeadura; mecanização; Humus M.O. 80; veículo de sementesM.O. 80, a by-product of lignite production, was used as a seed diluent with the following concentrations: 90, 80, 70, 60, 50 and 0%. A Planet Jr. seed-drill model 300-A was used to sow the treated lettuce seed. Seed use, and thinning operations were recorded. Treatments involving 90 and 80% of M.O. 80 showed economical use of seed in relation to the control (0% of M.O. 80). It was observed that seed-drill discharge increased proportionally with diluent concentration. Concerning to stand the treatment involving 90% of M.O. 80 presented significant differences in comparison to the other treatments. M .O. 80 at a concentration of 90% differed from the levels with respect to thinning 70, 60 and 50%.Foi estudada a possibilidade de utilização do Humus M.0. 80, produto derivado da linhita, como veículo de sementes de alface (Lactuca sativa L.) na semeadura mecânica direta, analisando-se os fatores comumente limitantes desta operação: consumo excessivo de sementes e desbaste. Foi utilizada a semeadeira Planet Jr. modelo 300-A, testando-se as seguintes concentrações de Humus M.O. 80: 90, 80, 70, 60, 50 e 0% (testemunha). Apenas os tratamentos com 80 e 90% de Humus M .O. 80 apresentaram consumo econômico de sementes em relação à testemunha. O consumo de material em cada tratamento mostrou que a vazão da semeadeira crescia quando aumentava a proporção de Humus M.O. 80 na mistura. Não houve diferença entre os tratamentos quanto ao desbaste, "stand" final e produção, com exceção do tratamento composto de 90% de Humus M .O. 80. Este diferiu estatisticamente dos demais no "stand" final, considerado baixo, e dos tratamentos com 70, 60 e 50% de Humus M.0. 80, no desbaste.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMesquita, Cesar de MelloPereira, Alberto LeandroCastro, Luiz Antônio Barreto de2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16946Pesquisa Agropecuaria Brasileira; v.11, n.12, 1976: Série Agronomia; 81-84Pesquisa Agropecuária Brasileira; v.11, n.12, 1976: Série Agronomia; 81-841678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporenghttps://seer.sct.embrapa.br/index.php/pab/article/view/16946/11265https://seer.sct.embrapa.br/index.php/pab/article/view/16946/11266info:eu-repo/semantics/openAccess2014-04-15T19:05:05Zoai:ojs.seer.sct.embrapa.br:article/16946Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:05:05Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Humus M.O. 80 as a seed diluent for direct sowing of lettuce Humus M.O 80 como diluente na semeadura mecânica da alface ( Lactuca sativa) |
title |
Humus M.O. 80 as a seed diluent for direct sowing of lettuce |
spellingShingle |
Humus M.O. 80 as a seed diluent for direct sowing of lettuce Mesquita, Cesar de Mello Lettuce; Lactuca sativa; seeding; mechanization; seed diluent; Humus M.O. 80 Alface; Lactuca sativa; semeadura; mecanização; Humus M.O. 80; veículo de sementes |
title_short |
Humus M.O. 80 as a seed diluent for direct sowing of lettuce |
title_full |
Humus M.O. 80 as a seed diluent for direct sowing of lettuce |
title_fullStr |
Humus M.O. 80 as a seed diluent for direct sowing of lettuce |
title_full_unstemmed |
Humus M.O. 80 as a seed diluent for direct sowing of lettuce |
title_sort |
Humus M.O. 80 as a seed diluent for direct sowing of lettuce |
author |
Mesquita, Cesar de Mello |
author_facet |
Mesquita, Cesar de Mello Pereira, Alberto Leandro Castro, Luiz Antônio Barreto de |
author_role |
author |
author2 |
Pereira, Alberto Leandro Castro, Luiz Antônio Barreto de |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Mesquita, Cesar de Mello Pereira, Alberto Leandro Castro, Luiz Antônio Barreto de |
dc.subject.por.fl_str_mv |
Lettuce; Lactuca sativa; seeding; mechanization; seed diluent; Humus M.O. 80 Alface; Lactuca sativa; semeadura; mecanização; Humus M.O. 80; veículo de sementes |
topic |
Lettuce; Lactuca sativa; seeding; mechanization; seed diluent; Humus M.O. 80 Alface; Lactuca sativa; semeadura; mecanização; Humus M.O. 80; veículo de sementes |
description |
M.O. 80, a by-product of lignite production, was used as a seed diluent with the following concentrations: 90, 80, 70, 60, 50 and 0%. A Planet Jr. seed-drill model 300-A was used to sow the treated lettuce seed. Seed use, and thinning operations were recorded. Treatments involving 90 and 80% of M.O. 80 showed economical use of seed in relation to the control (0% of M.O. 80). It was observed that seed-drill discharge increased proportionally with diluent concentration. Concerning to stand the treatment involving 90% of M.O. 80 presented significant differences in comparison to the other treatments. M .O. 80 at a concentration of 90% differed from the levels with respect to thinning 70, 60 and 50%. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-15 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/16946 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/16946 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/16946/11265 https://seer.sct.embrapa.br/index.php/pab/article/view/16946/11266 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.11, n.12, 1976: Série Agronomia; 81-84 Pesquisa Agropecuária Brasileira; v.11, n.12, 1976: Série Agronomia; 81-84 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
_version_ |
1793416664119771136 |