A herbicidal composition comprises in aqueous solution a mixture of salts ofglyphosate at a total glyphosate a.e. concentration not less than about 360g/l, wherein (a) said glyphosate is in anionic form accompanied by lowmolecular weight non-amphiphilic cations in a total molar amount of about 100%to about 120% of the molar amount of said glyphosate； (b) said cationscomprise potassium and propylammonium (e.g., isopropylammonium) cations in amole ratio of about 70:30 to about 90:10； and (c) said potassium andpropylammonium cations together constitute about 90 to 100 molar percent ofall of said low molecular weight non-amphiphilic cations in the composition.
