Inhibition percents (as measured by reduction in chlorophyll content relative to a control) of MS formulations applied at several rates in pot experiments.^a

<p>The field rate was 100 g ha⁻¹.</p

Phase solubility diagrams of the herbicides in the presence of surfactants.

<p>Phase solubility diagrams of the herbicides in the presence of surfactants.</p

Solubility enhancement factor for the herbicide-surfactant systems.

<p>Solubility enhancement factor for the herbicide-surfactant systems.</p

Sorption isotherms of surfactants on sepiolite at added concentrations below their cmc.

<p>Sorption isotherms of surfactants on sepiolite at added concentrations below their cmc.</p

Clay-surfactant formulations.

<p>Clay-surfactant formulations.</p

Surface and chemical properties of the surfactants.

§<p>HLB, hydrophilic-lipophilic balance; cmc, critical micellar concentration.</p>f<p>Determined from surface tension measurements.</p

Sorption isotherms of the herbicides on clay.

<p>Sorption isotherms of the herbicides on clay.</p

Parameters of the Freundlich equation describing the adsoption isotherms of the herbicides and surfactants on sepiolite.

<p>Parameters of the Freundlich equation describing the adsoption isotherms of the herbicides and surfactants on sepiolite.</p