The invention relates to aqueous plant protection formulations comprising water-soluble pesticides, agrochemical salts and polymers based on acrylamidopropylmethylenesulfonic acid (AMPS) and “macromonomers”. The formulations show high solubility of the pesticides and of the agrochemical salts, and excellent stability on storage. The addition of the polymers improves the compatibility and solubility in water of the pesticides and agrochemical salts. Salting-out effects are suppressed or minimized. The formulations are preferably concentrated formulations, preferably soluble liquids (SL) and soluble concentrates.