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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
29/05/1996 |
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Data da última atualização: |
29/05/1996 |
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Autoria: |
NORRIS, L. A.; MONTGOMERY, M. L.; WARREN, L. E.; MOSKER, W. D. |
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Título: |
Brush control with herbicides on hill pasture sites in southern Oregon. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Journal of Range Management, v.35, n.1, p.75-80, Jan. 1982. |
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Idioma: |
Inglês |
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Conteúdo: |
Silvex alone or with 2,4-D in a 1:1 ratio at about 3 to 4 kg/ha gave 60 to 100% control of many brush species including poison oak. Oregon oak, and maples. Picloram at 1 kg/ha plus, 2,4-D at 4 kg/ha was most effective with respect to the amount of picloram; however, the mixture of 1 kg/ha plus 2 kg/ha respectively, was nearly as good. Complete pasture renovation in this area requires brush control, burning, fertilization, and seeding of desirable species. Picloram and 2,4-D disappear from soils in 29 months with no significant leaching into the soil profile at these study sites. Herbicide discharge in streamflow was small, representing 0.35% and 0.014% of applied picloram and 2,4-D. We believe that nearly all of the herbicide discharge from these watersheds represents residue deposited in dry stream channels or that mobilized by fall rains from adjacent streambanks. Significant overland movement of herbicides from upslope did not occur on these study areas. The probability of crop damage from irrigation with water from these watersheds is low. |
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Palavras-Chave: |
Controle de escova; Herbicide; Hill pasture sites; Pasto de colina; Southern Oregon. |
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Thesagro: |
Herbicida. |
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Thesaurus Nal: |
brush control. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01723naa a2200241 a 4500
001 1788825
005 1996-05-29
008 1982 bl --- 0-- u #d
100 1 $aNORRIS, L. A.
245 $aBrush control with herbicides on hill pasture sites in southern Oregon.
260 $c1982
520 $aSilvex alone or with 2,4-D in a 1:1 ratio at about 3 to 4 kg/ha gave 60 to 100% control of many brush species including poison oak. Oregon oak, and maples. Picloram at 1 kg/ha plus, 2,4-D at 4 kg/ha was most effective with respect to the amount of picloram; however, the mixture of 1 kg/ha plus 2 kg/ha respectively, was nearly as good. Complete pasture renovation in this area requires brush control, burning, fertilization, and seeding of desirable species. Picloram and 2,4-D disappear from soils in 29 months with no significant leaching into the soil profile at these study sites. Herbicide discharge in streamflow was small, representing 0.35% and 0.014% of applied picloram and 2,4-D. We believe that nearly all of the herbicide discharge from these watersheds represents residue deposited in dry stream channels or that mobilized by fall rains from adjacent streambanks. Significant overland movement of herbicides from upslope did not occur on these study areas. The probability of crop damage from irrigation with water from these watersheds is low.
650 $abrush control
650 $aHerbicida
653 $aControle de escova
653 $aHerbicide
653 $aHill pasture sites
653 $aPasto de colina
653 $aSouthern Oregon
700 1 $aMONTGOMERY, M. L.
700 1 $aWARREN, L. E.
700 1 $aMOSKER, W. D.
773 $tJournal of Range Management$gv.35, n.1, p.75-80, Jan. 1982.
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Registro original: |
Embrapa Pantanal (CPAP) |
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