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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Arroz e Feijão; Embrapa Meio-Norte; Embrapa Rondônia; Embrapa Unidades Centrais. |
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Data corrente: |
29/11/1993 |
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Data da última atualização: |
08/09/2020 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
RAPOSO, J. A. de A.; SANTOS, M. A. L. dos; LEAL, E. C.; SOUZA, G. J. de. |
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Afiliação: |
JOÂO ANTONIO DE ARRUDA RAPOSO, CPAF-RO; MARIA ALICE LEITES DOS SANTOS, CPAF-RO; EDNA CASTILHO LEAL, CPAF-RO; GENIVALDO JOSE DE SOUZA, CPAF-RO. |
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Título: |
Avaliação de cultivares de arroz de sequeiro em diferentes épocas de plantio no Território Federal de Rondônia. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Porto Velho: EMBRAPA-UEPAT, 1978. |
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Páginas: |
21p. |
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Série: |
(EMBRAPA-UEPAT Porto Velho. Comunicado técnico, 1). |
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Idioma: |
Português |
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Conteúdo: |
Procurou-se identificar cultivares mais produtivas em epocas de plantio mais favoraveis. Os experimentos foram conduzidos nos campos experimentais da EMBRAPA-UEPAT, em Porto Velho e Ouro Preto no periodo de 1976/77, em uma area total de 1.209,60m2. Usou-se o delineamento experimental de blocos casualizados, com tres repeticoes.Nao se conhecia espacamento ideal para o arroz,optando-se por 30 x 30cm. A densidade de plantio foi 5 a 6 sementes por cova, considerando-se a percentagem de germinacao de sementes na ordem de 82% a 95%. Os resultados demonstram que para Porto Velho, as cultivares IAC-1246, A-19, IAC-1131 e Pratao precoce (periodo ideal em fins de out., ate primeira quinzena de nov.), IAC-1246, A-19, IAC-1246 e IAC-1131 (apos segunda quinzena de nov. a inicio de dez.) mostraram-se mais satisfatoria, e com melhores condicoes em produtividade e outras caracteristicas para o agricultor e consumidor. Em Ouro Preto, se destacaram as cultivares IAC-1246(segunda quinzena de out.) e IAC-1131 (no final de nove., com colheita para fisnm de mar.). Sugere-se a continuidade de pesquisa a fim de substituir e introduzir cultivares mais produtivas e melhor adaptaveis. |
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Palavras-Chave: |
Amazônia Ocidental; Avaliação; Brasil; Cultivar; Época; Plantation; Planting season; Rondônia; Sequeiro; Western Amazon. |
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Thesagro: |
Aclimatação; Arroz; Arroz Sequeiro; Comportamento de Variedade; Condição Ambiental; Época de Plantio; Oryza Sativa; Plantio; Rendimento; Variedade. |
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Thesaurus Nal: |
Acclimation; Brazil; Dryland farming; Environmental factors; rice; Variety trials. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49913/1/CT-id-11250001.pdf
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Marc: |
LEADER 02472nam a2200481 a 4500
001 1698092
005 2020-09-08
008 1978 bl uuuu u0uu1 u #d
100 1 $aRAPOSO, J. A. de A.
245 $aAvaliação de cultivares de arroz de sequeiro em diferentes épocas de plantio no Território Federal de Rondônia.
260 $aPorto Velho: EMBRAPA-UEPAT$c1978
300 $a21p.
490 $a(EMBRAPA-UEPAT Porto Velho. Comunicado técnico, 1).
520 $aProcurou-se identificar cultivares mais produtivas em epocas de plantio mais favoraveis. Os experimentos foram conduzidos nos campos experimentais da EMBRAPA-UEPAT, em Porto Velho e Ouro Preto no periodo de 1976/77, em uma area total de 1.209,60m2. Usou-se o delineamento experimental de blocos casualizados, com tres repeticoes.Nao se conhecia espacamento ideal para o arroz,optando-se por 30 x 30cm. A densidade de plantio foi 5 a 6 sementes por cova, considerando-se a percentagem de germinacao de sementes na ordem de 82% a 95%. Os resultados demonstram que para Porto Velho, as cultivares IAC-1246, A-19, IAC-1131 e Pratao precoce (periodo ideal em fins de out., ate primeira quinzena de nov.), IAC-1246, A-19, IAC-1246 e IAC-1131 (apos segunda quinzena de nov. a inicio de dez.) mostraram-se mais satisfatoria, e com melhores condicoes em produtividade e outras caracteristicas para o agricultor e consumidor. Em Ouro Preto, se destacaram as cultivares IAC-1246(segunda quinzena de out.) e IAC-1131 (no final de nove., com colheita para fisnm de mar.). Sugere-se a continuidade de pesquisa a fim de substituir e introduzir cultivares mais produtivas e melhor adaptaveis.
650 $aAcclimation
650 $aBrazil
650 $aDryland farming
650 $aEnvironmental factors
650 $arice
650 $aVariety trials
650 $aAclimatação
650 $aArroz
650 $aArroz Sequeiro
650 $aComportamento de Variedade
650 $aCondição Ambiental
650 $aÉpoca de Plantio
650 $aOryza Sativa
650 $aPlantio
650 $aRendimento
650 $aVariedade
653 $aAmazônia Ocidental
653 $aAvaliação
653 $aBrasil
653 $aCultivar
653 $aÉpoca
653 $aPlantation
653 $aPlanting season
653 $aRondônia
653 $aSequeiro
653 $aWestern Amazon
700 1 $aSANTOS, M. A. L. dos
700 1 $aLEAL, E. C.
700 1 $aSOUZA, G. J. de
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Registro original: |
Embrapa Rondônia (CPAF-RO) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
07/08/2020 |
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Data da última atualização: |
13/08/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ESTEVES, G. de F.; SOUZA, K. R. D. de; BRESSANIN, L. A.; ANDRADE, P. C. C.; VERONESE JÚNIOR, V.; REIS, P. E. dos; SILVA, A. B. da; MANTOVANI, J. R.; MAGALHAES, P. C.; PASQUAL, M.; SOUZA, T. C. de. |
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Afiliação: |
Gisele de Fatima Esteves, Universidade Federal de Alfenas; Kamila Rezende Dazio de Souza, Universidade Federal de Alfenas; Leticia Aparecida Bressanin, Universidade Federal de Alfenas; Paula Cristina Castro Andrade, UNIFENAS; Valdir Veroneze Júnior, Universidade Federal de Alfenas; Pedro Ernesto dos Reis, Universidade Federal de Alfenas; Adriano Bortolotti da Silva, UNIFENAS; Jose Ricardo Mantovani, UNIFENAS; PAULO CESAR MAGALHAES, CNPMS; Moacir Pasqual, Universidade Federal de Lavras; Thiago Correa de Souza, Universidade Federal de Lavras. |
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Título: |
Vermicompost improves maize, millet and sorghum growth in iron mine tailings. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Environmental Management, v. 264, article 110468, 2020. |
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DOI: |
10.1016/j.jenvman.2020.110468 |
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Idioma: |
Inglês |
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Conteúdo: |
The Fundao dam was designed to store iron mine tailings in the region of Mariana, MG, Brazil. When it ruptured, the tailings overflowed. These tailings affected the soil due to the formation of a thick crust as a result of drying (compaction) and hindered the natural revegetation process. In this context, the use of organic fertilizers, including vermicompost, is method of reducing the physical limitations on root growth caused by soil properties and changing soil-metal interactions. For this reason, vermicompost was added to iron mine tailings, and its morphological and physiological effects on maize, millet and sorghum plants were studied. The experiment was conducted in a greenhouse using 6 dm(3) pots. The plants were subjected to three treatments: mine tailings, mine tailings + vermicompost, and a reference soil. From the V3 stage onwards, biweekly growth, leaf gas exchange and chlorophyll fluorescence evaluations were performed. At the end of the experiment, dry biomass and metal, macro- and micronutrient contents were quantified, and the root morphology was evaluated. The tailings created physical limitations on root growth and had low nutrient content as well as high concentrations of chromium, iron and manganese. The addition of vermicompost favored increases in shoot and root dry biomass, increases in root length, volume, surface area and diameter, and the absorption of macro- and micronutrients, which was reflected in the growth of the studied species. In addition, vermicompost led to greater investment in thick and very thick roots, and in general, the plants showed no symptoms of metal toxicity. Considering the characteristics of the studied tailings, it can be concluded that vermicompost favors the growth of plant species and may be a viable method for beginning the recovery process in areas containing iron mine tailings. MenosThe Fundao dam was designed to store iron mine tailings in the region of Mariana, MG, Brazil. When it ruptured, the tailings overflowed. These tailings affected the soil due to the formation of a thick crust as a result of drying (compaction) and hindered the natural revegetation process. In this context, the use of organic fertilizers, including vermicompost, is method of reducing the physical limitations on root growth caused by soil properties and changing soil-metal interactions. For this reason, vermicompost was added to iron mine tailings, and its morphological and physiological effects on maize, millet and sorghum plants were studied. The experiment was conducted in a greenhouse using 6 dm(3) pots. The plants were subjected to three treatments: mine tailings, mine tailings + vermicompost, and a reference soil. From the V3 stage onwards, biweekly growth, leaf gas exchange and chlorophyll fluorescence evaluations were performed. At the end of the experiment, dry biomass and metal, macro- and micronutrient contents were quantified, and the root morphology was evaluated. The tailings created physical limitations on root growth and had low nutrient content as well as high concentrations of chromium, iron and manganese. The addition of vermicompost favored increases in shoot and root dry biomass, increases in root length, volume, surface area and diameter, and the absorption of macro- and micronutrients, which was reflected in the growth of the studied species. In addition,... Mostrar Tudo |
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Palavras-Chave: |
Desastre de Mariana; Troca gasosa. |
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Thesagro: |
Biomassa; Compactação do Solo; Lodo Residual; Morfologia Vegetal; Raiz; Resíduo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02879naa a2200349 a 4500
001 2124237
005 2020-08-13
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1016/j.jenvman.2020.110468$2DOI
100 1 $aESTEVES, G. de F.
245 $aVermicompost improves maize, millet and sorghum growth in iron mine tailings.$h[electronic resource]
260 $c2020
520 $aThe Fundao dam was designed to store iron mine tailings in the region of Mariana, MG, Brazil. When it ruptured, the tailings overflowed. These tailings affected the soil due to the formation of a thick crust as a result of drying (compaction) and hindered the natural revegetation process. In this context, the use of organic fertilizers, including vermicompost, is method of reducing the physical limitations on root growth caused by soil properties and changing soil-metal interactions. For this reason, vermicompost was added to iron mine tailings, and its morphological and physiological effects on maize, millet and sorghum plants were studied. The experiment was conducted in a greenhouse using 6 dm(3) pots. The plants were subjected to three treatments: mine tailings, mine tailings + vermicompost, and a reference soil. From the V3 stage onwards, biweekly growth, leaf gas exchange and chlorophyll fluorescence evaluations were performed. At the end of the experiment, dry biomass and metal, macro- and micronutrient contents were quantified, and the root morphology was evaluated. The tailings created physical limitations on root growth and had low nutrient content as well as high concentrations of chromium, iron and manganese. The addition of vermicompost favored increases in shoot and root dry biomass, increases in root length, volume, surface area and diameter, and the absorption of macro- and micronutrients, which was reflected in the growth of the studied species. In addition, vermicompost led to greater investment in thick and very thick roots, and in general, the plants showed no symptoms of metal toxicity. Considering the characteristics of the studied tailings, it can be concluded that vermicompost favors the growth of plant species and may be a viable method for beginning the recovery process in areas containing iron mine tailings.
650 $aBiomassa
650 $aCompactação do Solo
650 $aLodo Residual
650 $aMorfologia Vegetal
650 $aRaiz
650 $aResíduo
653 $aDesastre de Mariana
653 $aTroca gasosa
700 1 $aSOUZA, K. R. D. de
700 1 $aBRESSANIN, L. A.
700 1 $aANDRADE, P. C. C.
700 1 $aVERONESE JÚNIOR, V.
700 1 $aREIS, P. E. dos
700 1 $aSILVA, A. B. da
700 1 $aMANTOVANI, J. R.
700 1 $aMAGALHAES, P. C.
700 1 $aPASQUAL, M.
700 1 $aSOUZA, T. C. de
773 $tJournal of Environmental Management$gv. 264, article 110468, 2020.
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Embrapa Milho e Sorgo (CNPMS) |
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