Glyphosate compositions and their use

Details Glyphosate compositions and their use Glyphosate compositions and their use

A - Human Necessities

01

N

A01N 57/20 (2006.01) A01N 25/30 (2006.01)

Patent

CA 2446694

The invention relates to a herbicidal composition comprising: (a) glyphosate acid or an agriculturally acceptable salt or derivative thereof, and (b) a surface active component having formula (i) or a quaternized form thereof or the amine oxide derivative thereof, wherein R1 and R2 each independently represent a straight or branched chain alkyl or alkenyl group having from 4 to 24 C-atoms, R3 in each (R3-O)-group may be the same or different and represents alkylene having from 2 to 4 carbon atoms, and x and y are average numbers such that x+y is in the range from 2 to 160. It further relates to adjuvant compositions comprising such surface active compounds and to a method for the control compositions. These compositions show improved herbicidal efficacy and may contain high concentrations of glyphosate.

L'invention concerne une composition herbicide contenant (a) de l'acide glyphosate ou un sel acceptable en agriculture ou un dérivé dudit acide, et (b) un composant tensioactif de formule (I) ou une forme quaternisée ou le dérivé d'oxyde d'amine dudit composant ; R1 et R2 sont chacun indépendamment l'un de l'autre un groupe alkyle ou alcényle linéaire ou ramifié portant 4 à 24 atomes de carbone ; R¿3? de chaque groupe (R¿3?-O) peut être identique ou différent de l'autre et est alkylène portant 2 à 4 atomes de carbone ; et, x et y sont des valeurs moyennes de manière que x+y vaut entre 2 et 160. L'invention concerne également une composition additive contenant de tels composés tensioactifs, ainsi qu'un procédé de contrôle ou de suppression de végétation nuisible au moyen d'une telle composition. Les compositions selon l'invention présentent une action herbicide améliorée et peuvent contenir des concentrations élevées de glyphosate.

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