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Sorption of oxadiazon in soils cultivated in the brazilian cerrado 87
Mendes,K.F.; Reis,M.R.; Pereira,A.A.; Nunes,A.R.S.; Santos,C.E.M.; Assis,A.C.L.P..
The objective of this study was to evaluate oxadiazon sorption in different soils of the Brazilian Cerrado, highlighting the correlations of lethal doses of this herbicide capable of inhibiting 50% of the dry matter accumulation of the bio-indicator (LD50) among the chemical characteristics of the soil and its direct and indirect effects. The experiment was carried out in a greenhouse in a randomized block design and four repetitions. Each experimental unit consisted of a pot with increasing rates of oxadiazon and oat (Avena sativa), as the bio-indicator species. For sorption evaluation, washed sand and 22 soils (substrates) from Cerrado Brazilian's Alliaceae cultivated areas were used. LD50 and sorption ratio (SR) = [(LD50soil - LD50sand)/LD50sand] to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioassay; Neutral herbicide; Organic matter.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000100024
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