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Registro Completo |
Biblioteca(s): |
Embrapa Agrossilvipastoril. |
Data corrente: |
08/07/2019 |
Data da última atualização: |
04/12/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
Effect of soil coverage on dual crop coefficient of maize in a region of Mato Grosso, Brazil. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Journal of Agricultural Science, v. 11, n. 14, p. 143-155, 2019. |
ISSN: |
1916-9752 |
Idioma: |
Inglês |
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 |
Thesagro: |
Cerrado; Milho; Zea Mays. |
Thesaurus Nal: |
Cerrado soils; Crop coefficient; Evaporation; Lysimeters; Soil water. |
Categoria do assunto: |
A Sistemas de Cultivo |
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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Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
28/09/2011 |
Data da última atualização: |
01/08/2018 |
Autoria: |
XAVIER, L. M. S.; LAUMANN, R. A.; BORGES, M.; MAGALHÃES, D. M.; VILELA, E. F.; BLASSIOLI-MORAES, M. C. |
Afiliação: |
Luciane Modenez Saldivar Xavier, Universidade Federal de Viçosa, Departamento de Biologia Animal; RAUL ALBERTO LAUMANN, CENARGEN; MIGUEL BORGES, CENARGEN; Diego Martins Magalhães, CENARGEN; Evaldo Ferreira Vilela, Universidade Federal de Viçosa, Departamento de Biologia Animal; MARIA CAROLINA BLASSIOLI MORAES, CENARGEN. |
Título: |
Trichogramma pretiosum attraction due to the Elasmopalpus lignosellus damage in maize. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 6, p. 578-585, jun. 2011 |
Idioma: |
Inglês |
Notas: |
Título em português: Atração de Trichogramma pretiosum devida ao dano causado por Elasmopalpus lignosellus em milho. |
Conteúdo: |
The objective of this work was to evaluate if corn plants damaged by the lesser cornstalk borer (Elasmopalpus lignosellus) larvae release volatile organic compounds capable of attracting the egg parasitoid Trichogramma pretiosum. The treatments consisted of plants subjected to harm caused by E. lignosellus larvae, plants subjected to mechanical damage, and undamaged plants. The parasitoid was more attracted by the volatiles released by the insect damaged plants than to those released by undamaged corn plants, after 24 and 72 hours. The volatiles (Z)-3-hexenyl acetate, β-pinene, β-myrcene, (E)-4,8-dimethylnona-1,3,7-triene, and benzothiazole were released in significantly larger quantities by damaged plants. Volatiles released by corn plants damaged by E. lignosellus larvae may act as an indirect defense, attracting by T. pretiosum. |
Palavras-Chave: |
Egg parasitoid; Interação tritrófica; Parasitoide de ovo; Semioquímico; Tritrophic interaction. |
Thesaurus NAL: |
Semiochemicals; Volatile organic compounds. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42569/1/46n06a02.pdf
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Marc: |
LEADER 01798naa a2200277 a 4500 001 1901612 005 2018-08-01 008 2011 bl uuuu u00u1 u #d 100 1 $aXAVIER, L. M. S. 245 $aTrichogramma pretiosum attraction due to the Elasmopalpus lignosellus damage in maize. 260 $c2011 500 $aTítulo em português: Atração de Trichogramma pretiosum devida ao dano causado por Elasmopalpus lignosellus em milho. 520 $aThe objective of this work was to evaluate if corn plants damaged by the lesser cornstalk borer (Elasmopalpus lignosellus) larvae release volatile organic compounds capable of attracting the egg parasitoid Trichogramma pretiosum. The treatments consisted of plants subjected to harm caused by E. lignosellus larvae, plants subjected to mechanical damage, and undamaged plants. The parasitoid was more attracted by the volatiles released by the insect damaged plants than to those released by undamaged corn plants, after 24 and 72 hours. The volatiles (Z)-3-hexenyl acetate, β-pinene, β-myrcene, (E)-4,8-dimethylnona-1,3,7-triene, and benzothiazole were released in significantly larger quantities by damaged plants. Volatiles released by corn plants damaged by E. lignosellus larvae may act as an indirect defense, attracting by T. pretiosum. 650 $aSemiochemicals 650 $aVolatile organic compounds 653 $aEgg parasitoid 653 $aInteração tritrófica 653 $aParasitoide de ovo 653 $aSemioquímico 653 $aTritrophic interaction 700 1 $aLAUMANN, R. A. 700 1 $aBORGES, M. 700 1 $aMAGALHÃES, D. M. 700 1 $aVILELA, E. F. 700 1 $aBLASSIOLI-MORAES, M. C. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 46, n. 6, p. 578-585, jun. 2011
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