2012
DOI: 10.7824/rbh.v11i1.148
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Pulverização de glyphosate utilizando solução de uréia + sulfato de amônio

Abstract: Resumo -Diversos experimentos têm sido realizados com intuito de elevar a eficácia do herbicida glyphosate na dessecação de plantas daninhas, incluindo-se o uso de sulfato de amônio ou ureia como adjuvantes. Em termos fisiológicos, existem explicações para o efeito complementar destes produtos quando adicionados concomitantemente à calda herbicida. Desta forma, três experimentos foram desenvolvidos em campo com o objetivo de avaliar a eficácia do herbicida glyphosate para dessecação de espécies de plantas dani… Show more

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“…In a weed community, the joint application of glyphosate and (NH 4 ) 2 SO 4 resulted in a 93% reduction in plant biomass, while treatments without this adjuvant reduced biomass by 77% (Mahoney et al 2014). The control of Urochloa decumbens with glyphosate was not increased by the use of (NH 4 ) 2 SO 4 , but this combination resulted in greater control in S. halepense (Carvalho et al 2012). These results demonstrate that plant responses to the (NH 4 ) 2 SO 4 are species-dependent, and can also vary according to the biotype.…”
Section: Discussionmentioning
confidence: 96%
“…In a weed community, the joint application of glyphosate and (NH 4 ) 2 SO 4 resulted in a 93% reduction in plant biomass, while treatments without this adjuvant reduced biomass by 77% (Mahoney et al 2014). The control of Urochloa decumbens with glyphosate was not increased by the use of (NH 4 ) 2 SO 4 , but this combination resulted in greater control in S. halepense (Carvalho et al 2012). These results demonstrate that plant responses to the (NH 4 ) 2 SO 4 are species-dependent, and can also vary according to the biotype.…”
Section: Discussionmentioning
confidence: 96%