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    <subfield code="a">Carbonari, Caio Antonio </subfield>
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    <subfield code="a">Gomes, Giovanna Larissa Gimenes Cotrick </subfield>
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    <subfield code="a">Velini, Edivaldo Domingues</subfield>
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    <subfield code="a">Efeitos de per&#xED;odos sem a ocorr&#xEA;ncia de chuva na efic&#xE1;cia do flumioxazin aplicado no solo e na palha de cana-de-a&#xE7;&#xFA;car</subfield>
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Resumo  

O presente trabalho teve por objetivo avaliar a efic&#xE1;cia do flumioxazin aplicado sobre o  solo  e  em  associa&#xE7;&#xE3;o  com  a  palha  de  cana-de-a&#xE7;&#xFA;car,  seguido  de  diferentes  per&#xED;odos  sem ocorr&#xEA;ncia  de  chuvas.   O  experimento  foi  conduzido  em  vasos  em  casa-de-vegeta&#xE7;&#xE3;o,  no munic&#xED;pio  de  Botucatu/SP.  Os  vasos  foram  preenchidos  com  solo  e  as  plantas  daninhas Brachiaria decumbens, Digitaria horizontalis, Ipomoea nil, Ipomoea grandifolia, Bidens pilosa e Sida  rhombifolia,  foram  semeadas  e  em  seguida  cobertos  ou  n&#xE3;o  com  palha  de  cana-de-a&#xE7;&#xFA;car, dependendo  do  tratamento  utilizado.  O  delineamento experimental  utilizado  foi  inteiramente casualizado  com  quatro  repeti&#xE7;&#xF5;es.  Os  tratamentos  foram  dispostos  em  esquema  fatorial  4  x  2, sendo  os  fatores,  quatro  per&#xED;odos  sem  ocorr&#xEA;ncia  de  chuvas,  1,  15,  30  e  60  dias  e  dois posicionamentos  do  produto,  sobre  o  solo  sem  palha e  sobre  a  palha  de  cana-de-a&#xE7;&#xFA;car.  Foram realizadas  avalia&#xE7;&#xF5;es  de  controle  aos  14,  28  e  42  dias  ap&#xF3;s  a  ocorr&#xEA;ncia  da  chuva.  De  maneira geral, pode-se observar que a aplica&#xE7;&#xE3;o do flumioxazin sobre o solo ou sobre a palha de cana-de-a&#xE7;&#xFA;car  promoveu  bons  n&#xED;veis  de  controle  das  plantas  daninhas.  Foram  observadas  redu&#xE7;&#xF5;es  nos n&#xED;veis  de  controle  para  algumas  esp&#xE9;cies  de  plantas  daninhas,  quando  o  produto  foi  exposto  ao per&#xED;odo de 60 dias sem ocorr&#xEA;ncia de chuvas.  

Palavras-chaves: controle qu&#xED;mico, cobertura morta, plantas daninhas. 




Abstract  

The present work aimed to evaluate the efficacy of flumioxazin applied over the soil or   in   association   with   sugarcane   mulch,   followed   by   different   periods   without   the   rain occurrence.  The  experiment  was  conducted  in  vases  under  greenhouse  conditions  in  Botucatu County,  S&#xE3;o  Paulo,  Brazil.  Vases  were  filled  with  soil  and Brachiaria  decumbens,  Digitaria horizontalis, Ipomoea nil, Ipomoea grandifolia,Bidens pilosa and Sida rhombifolia weeds were sown  and  then  covered  or  not  with  sugarcane  mulch, depending  on  the  treatment  used.  The experimental  design  used  was  entirely  randomized  with  four  replications.  Treatments  were displaced  in  4  x  2  factorial  scheme,  with  factors  representing  four  periods  without  rain occurrence, 1, 15, 30 and 60 days and two herbicides positioning, over the soil without sugarcane mulch and over sugarcane mulch. Control evaluations were carried out at 14, 28 and 42 days after rain occurrence. In general mode, it was possible to observe that flumioxazin application over the soil  or  over  sugarcane  mulch  promoted  control  satisfactory  levels  of  weeds.  Reductions  on control levels of some weed species were observed when the herbicide  was exposed  to  a  period of 60 days without rain occurrence.  

Key-words: chemical control, mulch, weeds.</subfield>
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  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">COBERTURA MORTA;</subfield>
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  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">CONTROLE QU&#xCD;MICO;</subfield>
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  <datafield tag="650" ind1=" " ind2=" ">
    <subfield code="a">ERVA DANINHA;</subfield>
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  <datafield tag="773" ind1="0" ind2=" ">
    <subfield code="0">3935</subfield>
    <subfield code="9">347778</subfield>
    <subfield code="d">Bras&#xED;lia-DF Grupo de Especialista em Plantas Daninhas nos Cerrados 2000</subfield>
    <subfield code="o">2025-0280</subfield>
    <subfield code="t">Weed Control Journal (Brazil)</subfield>
    <subfield code="x">2236-1065 (on-line at&#xE9; v. 19(4); (2020))</subfield>
    <subfield code="g">v. 9(3) p. 81-88; (Sep-Dec 2010)</subfield>
    <subfield code="w">BR2026002265</subfield>
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  <datafield tag="856" ind1=" " ind2=" ">
    <subfield code="u">https://www.rbherbicidas.com.br/index.php/rbh/article/view/78/pdf</subfield>
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  <datafield tag="942" ind1=" " ind2=" ">
    <subfield code="c">ANA</subfield>
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  <datafield tag="999" ind1=" " ind2=" ">
    <subfield code="c">348650</subfield>
    <subfield code="d">348650</subfield>
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