METHOD OF DETERMINING SYNERGETIC EFFECT OF SURFACTANTS IN HERBICIDE HETEROGENEOUS SYSTEMS Russian patent published in 2011 - IPC A01N25/30 A01N25/04 A01P13/00 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. Active substance is mixed with a first surfactant (surfactant I) and an organic solvent. The active substance is separately mixed with a second surfactant (surfactant II) and an organic solvent. The active substance is separately mixed with a mixture of these two surfactants and an organic solvent. The obtained concentrates undergo separate emulsification in water. The particle size of the dispersion phase of the emulsion is determined. Dispersion (D) is calculated and these figures are expressed in percentages (% actual D). Synergetic effect is calculated using the formula: % actual D - % calculated D, where % calculated D = % actual D surfactant I + % actual D surfactant II - (% actual D surfactant I x % actual D surfactant II): 100.

EFFECT: invention enables to optimise content of surfactant in herbicide heterogeneous systems and increase herbicide activity of the agents.

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