Homogeneous aqueous composition containing from 10 to 350 g/Kg of ammonium sulfate and from 10 to 200 g/Kg of anionic esters of linear or branched C6-C20 alkyl polyglycosides, and diluted sprayable herbicidal formulation comprising the above homogeneous aqueous composition and from 0.01 to 5% by weight at least a herbicide.