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Registro Completo |
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Biblioteca(s): |
Embrapa Acre; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Meio Norte / UEP-Parnaíba; Embrapa Unidades Centrais. |
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Data corrente: |
28/01/1993 |
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Data da última atualização: |
24/05/2023 |
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Autoria: |
PIMENTEL, F. A.; LODI, N. V. |
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Afiliação: |
FLAVIO ARAUJO PIMENTEL, CPAF-AC; NELSON VALDIR LODI, CPAF-AC. |
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Título: |
Avaliação de cultivares de milho precoce no município de Brasiléia-Acre. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Rio Branco, AC: Embrapa-UEPAE Rio Branco, 1990. |
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Páginas: |
5 p. |
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Série: |
(Embrapa-UEPAE Rio Branco. Pesquisa em andamento, 51). |
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ISSN: |
0100-6075 |
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Idioma: |
Português |
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Conteúdo: |
Este estudo tem como objetivo obter cultivares de ciclo curto visando efetuar dois cultivos por ano, iniciando o primeiro plantio em setembro/outubro e colhendo em março/abril, uma vez que o agricultor tem o hábito de quebrar o milho no campo. |
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Palavras-Chave: |
Aclimatación; Acre; Amazonia Occidental; Amazônia Ocidental; Avaliação; Brasil; Brasiléia; Brasiléia (AC); Cultivares; Desarrollo temprano; Ensayos de variedades; Evaluation; Factores ambientales; Fitomejoramiento; Maíz; Maize; PAD Quixadá; Rendimiento de los cultivos; Western Amazon. |
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Thesagro: |
Aclimatação; Características Agronômicas; Comportamento de Variedade; Condição Ambiental; Melhoramento Genético Vegetal; Milho; Milho Precoce; Rendimento; Variedade; Zea Mays. |
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Thesaurus Nal: |
Acclimation; Agronomic traits; Corn; Crop yield; Early development; Environmental factors; Plant breeding; Variety trials. |
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Categoria do assunto: |
--
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/132288/1/959.pdf
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Marc: |
LEADER 01873nam a2200601 a 4500
001 1492204
005 2023-05-24
008 1990 bl uuuu u0uu1 u #d
022 $a0100-6075
100 1 $aPIMENTEL, F. A.
245 $aAvaliação de cultivares de milho precoce no município de Brasiléia-Acre.
260 $aRio Branco, AC: Embrapa-UEPAE Rio Branco$c1990
300 $a5 p.
490 $a(Embrapa-UEPAE Rio Branco. Pesquisa em andamento, 51).
520 $aEste estudo tem como objetivo obter cultivares de ciclo curto visando efetuar dois cultivos por ano, iniciando o primeiro plantio em setembro/outubro e colhendo em março/abril, uma vez que o agricultor tem o hábito de quebrar o milho no campo.
650 $aAcclimation
650 $aAgronomic traits
650 $aCorn
650 $aCrop yield
650 $aEarly development
650 $aEnvironmental factors
650 $aPlant breeding
650 $aVariety trials
650 $aAclimatação
650 $aCaracterísticas Agronômicas
650 $aComportamento de Variedade
650 $aCondição Ambiental
650 $aMelhoramento Genético Vegetal
650 $aMilho
650 $aMilho Precoce
650 $aRendimento
650 $aVariedade
650 $aZea Mays
653 $aAclimatación
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aAvaliação
653 $aBrasil
653 $aBrasiléia
653 $aBrasiléia (AC)
653 $aCultivares
653 $aDesarrollo temprano
653 $aEnsayos de variedades
653 $aEvaluation
653 $aFactores ambientales
653 $aFitomejoramiento
653 $aMaíz
653 $aMaize
653 $aPAD Quixadá
653 $aRendimiento de los cultivos
653 $aWestern Amazon
700 1 $aLODI, N. V.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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Biblioteca |
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Origem |
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Classificação |
Cutter |
Registro |
Volume |
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URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
14/11/2019 |
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Data da última atualização: |
13/11/2023 |
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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: |
ZANATTA, J. A.; VIEIRA, F. C. B.; BRIEDIS, C.; DIECKOW, J.; BAYER, C. |
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Afiliação: |
JOSILEIA ACORDI ZANATTA, CNPF; FREDERICO COSTA BEBER VIEIRA, UNIVERSIDADE FEDERAL DO PAMPA; CLEVER BRIEDIS, BOLSISTA NA EMBRAPA INSTRUMENTAÇÃO; JEFERSON DIECKOW, UNIVERSIDADE FEDERAL DO PARANÁ; CIMÉLIO BAYER, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL. |
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Título: |
Carbon indices to assess quality of management systems in a Subtropical Acrisol. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Scientia Agricola, Piracicaba, v. 76, n. 6, p. 501-508, Nov./Dec. 2019. |
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DOI: |
http://dx.doi.org/10.1590/1678-992X-2017-0322 |
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Idioma: |
Inglês |
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Conteúdo: |
Management systems to improve soil quality are essential for agricultural and environmental sustainability. We assessed the quality of soil management systems applied to a subtropical Acrisol in terms of the carbon management index (CMI), the stratification ratio for total organic carbon (SR-TOC) and light fraction of organic matter (SR-LF). In addition, we examined their relationship to chemical, physical and biological soil quality indicators, as well as to maize yield. The study was conducted on a long-term experiment (18 years) in southern Brazil involving two different systems [no tillage (NT) and conventional tillage (CT)], two cropping systems [black oat/maize (O/M) and black oat + vetch/maize + cowpea (OV/MC)] and two nitrogen fertilizer rates for maize (0 and 180 kg ha?1). Based on the three indices, the best managements for soil quality comprised NT (50-212 % better than CT), legume cover crops (10-47 % better than O/M) and N fertilization (8-33 % better than no fertilizer). All three indices proved accurate to assess the impact of soil management systems, especially SR-LF, which showed increased sensitivity and close relationships with chemical, physical and biological soil quality indicators. On the other hand, a poor relationship was observed between soil C indices and maize yield, which was improved only by legume cover crops and N fertilization. The results showed that the association of no-till system to an abundant supply of crop residues is key to ensure high soil quality and crop yields in humid subtropical regions. MenosManagement systems to improve soil quality are essential for agricultural and environmental sustainability. We assessed the quality of soil management systems applied to a subtropical Acrisol in terms of the carbon management index (CMI), the stratification ratio for total organic carbon (SR-TOC) and light fraction of organic matter (SR-LF). In addition, we examined their relationship to chemical, physical and biological soil quality indicators, as well as to maize yield. The study was conducted on a long-term experiment (18 years) in southern Brazil involving two different systems [no tillage (NT) and conventional tillage (CT)], two cropping systems [black oat/maize (O/M) and black oat + vetch/maize + cowpea (OV/MC)] and two nitrogen fertilizer rates for maize (0 and 180 kg ha?1). Based on the three indices, the best managements for soil quality comprised NT (50-212 % better than CT), legume cover crops (10-47 % better than O/M) and N fertilization (8-33 % better than no fertilizer). All three indices proved accurate to assess the impact of soil management systems, especially SR-LF, which showed increased sensitivity and close relationships with chemical, physical and biological soil quality indicators. On the other hand, a poor relationship was observed between soil C indices and maize yield, which was improved only by legume cover crops and N fertilization. The results showed that the association of no-till system to an abundant supply of crop residues is key to ensure hi... Mostrar Tudo |
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Palavras-Chave: |
Agricultura conservativa; Conservation agriculture; No-till; Quality indicator. |
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Thesagro: |
Carbono. |
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Thesaurus NAL: |
Carbon; Cropping systems. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/204739/1/2019-Josileia-SA-Carbon.pdf
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Marc: |
LEADER 02361naa a2200265 a 4500
001 2114374
005 2023-11-13
008 2019 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/1678-992X-2017-0322$2DOI
100 1 $aZANATTA, J. A.
245 $aCarbon indices to assess quality of management systems in a Subtropical Acrisol.$h[electronic resource]
260 $c2019
520 $aManagement systems to improve soil quality are essential for agricultural and environmental sustainability. We assessed the quality of soil management systems applied to a subtropical Acrisol in terms of the carbon management index (CMI), the stratification ratio for total organic carbon (SR-TOC) and light fraction of organic matter (SR-LF). In addition, we examined their relationship to chemical, physical and biological soil quality indicators, as well as to maize yield. The study was conducted on a long-term experiment (18 years) in southern Brazil involving two different systems [no tillage (NT) and conventional tillage (CT)], two cropping systems [black oat/maize (O/M) and black oat + vetch/maize + cowpea (OV/MC)] and two nitrogen fertilizer rates for maize (0 and 180 kg ha?1). Based on the three indices, the best managements for soil quality comprised NT (50-212 % better than CT), legume cover crops (10-47 % better than O/M) and N fertilization (8-33 % better than no fertilizer). All three indices proved accurate to assess the impact of soil management systems, especially SR-LF, which showed increased sensitivity and close relationships with chemical, physical and biological soil quality indicators. On the other hand, a poor relationship was observed between soil C indices and maize yield, which was improved only by legume cover crops and N fertilization. The results showed that the association of no-till system to an abundant supply of crop residues is key to ensure high soil quality and crop yields in humid subtropical regions.
650 $aCarbon
650 $aCropping systems
650 $aCarbono
653 $aAgricultura conservativa
653 $aConservation agriculture
653 $aNo-till
653 $aQuality indicator
700 1 $aVIEIRA, F. C. B.
700 1 $aBRIEDIS, C.
700 1 $aDIECKOW, J.
700 1 $aBAYER, C.
773 $tScientia Agricola, Piracicaba$gv. 76, n. 6, p. 501-508, Nov./Dec. 2019.
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Registro original: |
Embrapa Florestas (CNPF) |
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