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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
08/07/2019 |
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Data da última atualização: |
04/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ANDREA, M. C. da S.; VIEIRA, F. F.; DALLACORT, R.; BARBIERI, J. D.; FREITAS, P. S. L. de; TIEPPO, R. C.; ZOLIN, C. A.; KRAUSE, W.; DANIEL, D. F. |
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Afiliação: |
MARIA CAROLINA DA SILVA ANDREA, UNEMAT, Tangará da Serra, MT; FRANCIELLE FREITAS VIEIRA, UNEMAT, Tangará da Serra, MT; RIVANILDO DALLACORT, UNEMAT, Tangará da Serra, MT; JOÃO DANILO BARBIERI, UEM, Maringa, PR; PAULO SÉRGIO LOURENÇO DE FREITAS, UEM, Maringa, PR; RAFAEL CESAR TIEPPO, UNEMAT, Tangará da Serra, MT; CORNELIO ALBERTO ZOLIN, CPAMT; WILLIAN KRAUSE, UNEMAT, Tangará da Serra, MT; DIEGO FERNANDO DANIEL, UNEMAT, Tangará da Serra, MT. |
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Título: |
Effect of soil coverage on dual crop coefficient of maize in a region of Mato Grosso, Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Agricultural Science, v. 11, n. 14, p. 143-155, 2019. |
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ISSN: |
1916-9752 |
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Idioma: |
Inglês |
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Conteúdo: |
With the objective of determining maize?s specific water requirements in different soil cover conditions in a Cerrado region of Mato Grosso, Brazil, this study used the dual?s crop coefficient (Kc dual) approach, according to FAO methods. An experiment was carried out in 2016, with three treatments: without vegetation soil cover; soil cover of 4 t ha-1 and soil cover of 8 t ha-1 dry matter of brachiaria grass. The used methodology accounts for crop?s transpiration component (through its basal coefficient, Kcb) and soil evaporation component (through its coefficient, Ke), which were determined for initial, intermediate and final phases of crop development. Experiments were carried in lysimeters to determine crop?s evapotranspiration, and in microlysimeters to determine soil evaporation. Crop?s transpiration, on three soil coverage treatments, showed overall highest values for the treatment with greater coverage (Kcb maximum values of 0.88, 1.00 and 1.03 from the lowest to greater soil coverage), while between crop?s phases, coefficient values were always higher at the intermediate stage, presenting decreases with crop senescence. Soil evaporation was highest on treatment without coverage in all crop?s stages (Ke = 0.37-0.78) and lowest in the treatment with greater coverage (Ke = 0.11-0.35). Yields were higher on treatments with coverage (9929.18 and 9939.52 kg ha-1 for treatments with 4 and 8 t ha-1) and lower when cultivated in soil without cover (8264.67 kg ha-1). Despite relatively higher crop?s transpiration with greater soil coverage, this treatment was identified as the best management option in the assessed tropical region of Brazilian Cerrado, in terms of rational use of water, due to lowest losses through evaporation, as also providing the highest grain yields. MenosWith the objective of determining maize?s specific water requirements in different soil cover conditions in a Cerrado region of Mato Grosso, Brazil, this study used the dual?s crop coefficient (Kc dual) approach, according to FAO methods. An experiment was carried out in 2016, with three treatments: without vegetation soil cover; soil cover of 4 t ha-1 and soil cover of 8 t ha-1 dry matter of brachiaria grass. The used methodology accounts for crop?s transpiration component (through its basal coefficient, Kcb) and soil evaporation component (through its coefficient, Ke), which were determined for initial, intermediate and final phases of crop development. Experiments were carried in lysimeters to determine crop?s evapotranspiration, and in microlysimeters to determine soil evaporation. Crop?s transpiration, on three soil coverage treatments, showed overall highest values for the treatment with greater coverage (Kcb maximum values of 0.88, 1.00 and 1.03 from the lowest to greater soil coverage), while between crop?s phases, coefficient values were always higher at the intermediate stage, presenting decreases with crop senescence. Soil evaporation was highest on treatment without coverage in all crop?s stages (Ke = 0.37-0.78) and lowest in the treatment with greater coverage (Ke = 0.11-0.35). Yields were higher on treatments with coverage (9929.18 and 9939.52 kg ha-1 for treatments with 4 and 8 t ha-1) and lower when cultivated in soil without cover (8264.67 kg ha-1). Despite ... Mostrar Tudo |
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Thesagro: |
Cerrado; Milho; Zea Mays. |
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Thesaurus Nal: |
Cerrado soils; Crop coefficient; Evaporation; Lysimeters; Soil water. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 02697naa a2200325 a 4500
001 2110476
005 2019-12-04
008 2019 bl uuuu u00u1 u #d
022 $a1916-9752
100 1 $aANDREA, M. C. da S.
245 $aEffect of soil coverage on dual crop coefficient of maize in a region of Mato Grosso, Brazil.$h[electronic resource]
260 $c2019
520 $aWith the objective of determining maize?s specific water requirements in different soil cover conditions in a Cerrado region of Mato Grosso, Brazil, this study used the dual?s crop coefficient (Kc dual) approach, according to FAO methods. An experiment was carried out in 2016, with three treatments: without vegetation soil cover; soil cover of 4 t ha-1 and soil cover of 8 t ha-1 dry matter of brachiaria grass. The used methodology accounts for crop?s transpiration component (through its basal coefficient, Kcb) and soil evaporation component (through its coefficient, Ke), which were determined for initial, intermediate and final phases of crop development. Experiments were carried in lysimeters to determine crop?s evapotranspiration, and in microlysimeters to determine soil evaporation. Crop?s transpiration, on three soil coverage treatments, showed overall highest values for the treatment with greater coverage (Kcb maximum values of 0.88, 1.00 and 1.03 from the lowest to greater soil coverage), while between crop?s phases, coefficient values were always higher at the intermediate stage, presenting decreases with crop senescence. Soil evaporation was highest on treatment without coverage in all crop?s stages (Ke = 0.37-0.78) and lowest in the treatment with greater coverage (Ke = 0.11-0.35). Yields were higher on treatments with coverage (9929.18 and 9939.52 kg ha-1 for treatments with 4 and 8 t ha-1) and lower when cultivated in soil without cover (8264.67 kg ha-1). Despite relatively higher crop?s transpiration with greater soil coverage, this treatment was identified as the best management option in the assessed tropical region of Brazilian Cerrado, in terms of rational use of water, due to lowest losses through evaporation, as also providing the highest grain yields.
650 $aCerrado soils
650 $aCrop coefficient
650 $aEvaporation
650 $aLysimeters
650 $aSoil water
650 $aCerrado
650 $aMilho
650 $aZea Mays
700 1 $aVIEIRA, F. F.
700 1 $aDALLACORT, R.
700 1 $aBARBIERI, J. D.
700 1 $aFREITAS, P. S. L. de
700 1 $aTIEPPO, R. C.
700 1 $aZOLIN, C. A.
700 1 $aKRAUSE, W.
700 1 $aDANIEL, D. F.
773 $tJournal of Agricultural Science$gv. 11, n. 14, p. 143-155, 2019.
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Embrapa Agrossilvipastoril (CPAMT) |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
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URL |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Unidades Centrais. |
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Data corrente: |
13/08/2001 |
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Data da última atualização: |
07/06/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARVALHO, C. J. R. de. |
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Afiliação: |
CLAUDIO JOSÉ REIS DE CARVALHO, CNPSE. |
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Título: |
Indução de floração precoce em clones de Hevea Brasiliensis e híbridos de Hevea Brasiliensis X Hevea Benthamiana. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 15, n. 4, p. 405-411, out. 1980 |
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Idioma: |
Português |
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Notas: |
Título em inglês: Induction of early flowering in clones ar Hevea Brasiliensis and Hevea Brasiliensis x Hevea Benthamiana hybrid clones. |
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Conteúdo: |
Foi obtida floracao precoce em plantas jovens de seringueira (Hevea brasíliensis) de IAN 873 e PFB 5, de quatorze meses de idade, tratadas para esse fim. Os fitorreguladores Cumarina e Ethephon foram eficientes so quando aplicados em plantas aneladas. A poda das raizes ou o crescimento forcado dos caules na posicao horizontal produziram efeito de inducao de floracao; porem na posicao horizontal observou-se queda de dominancia apical. O uso de Dimetil Sulfoxido aparenternente aumentou a penetracao dos fitorreguladores nas folhas. Nenhum tratamento foi eficiente para inducao de floracao precoce em hibridos de H. bendiamiam (clones de IAN 717 e Fx 3899). E possivel que as plantas jovens tenham sido induzidas a floracao principalmente pelo bloqueio da exportação de fitoassimilados e consequente acumulo de substrato organico no caule, o que aumenta sua disponibilidade em zonas quiescentes do meristema apical. |
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Palavras-Chave: |
juvenilidade; variacao. |
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Thesagro: |
Fisiologia; Indução. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/198301/1/Inducao-de-floracao-precoce-e-clones-de-Hevea.pdf
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Marc: |
LEADER 01616naa a2200181 a 4500
001 1105370
005 2019-06-07
008 1980 bl uuuu u00u1 u #d
100 1 $aCARVALHO, C. J. R. de
245 $aIndução de floração precoce em clones de Hevea Brasiliensis e híbridos de Hevea Brasiliensis X Hevea Benthamiana.
260 $c1980
500 $aTítulo em inglês: Induction of early flowering in clones ar Hevea Brasiliensis and Hevea Brasiliensis x Hevea Benthamiana hybrid clones.
520 $aFoi obtida floracao precoce em plantas jovens de seringueira (Hevea brasíliensis) de IAN 873 e PFB 5, de quatorze meses de idade, tratadas para esse fim. Os fitorreguladores Cumarina e Ethephon foram eficientes so quando aplicados em plantas aneladas. A poda das raizes ou o crescimento forcado dos caules na posicao horizontal produziram efeito de inducao de floracao; porem na posicao horizontal observou-se queda de dominancia apical. O uso de Dimetil Sulfoxido aparenternente aumentou a penetracao dos fitorreguladores nas folhas. Nenhum tratamento foi eficiente para inducao de floracao precoce em hibridos de H. bendiamiam (clones de IAN 717 e Fx 3899). E possivel que as plantas jovens tenham sido induzidas a floracao principalmente pelo bloqueio da exportação de fitoassimilados e consequente acumulo de substrato organico no caule, o que aumenta sua disponibilidade em zonas quiescentes do meristema apical.
650 $aFisiologia
650 $aIndução
653 $ajuvenilidade
653 $avariacao
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 15, n. 4, p. 405-411, out. 1980
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Embrapa Unidades Centrais (AI-SEDE) |
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