Ammonium Sulfate Defoamer Formulated with liquid ammonium sulfate solution, 34% Liquid AMS improves herbicide performance by modifying solution pH and reducing active ingredient interaction with hard water ions. The ammoniacal nitrogen 34% Liquid AMS has been proven to promote the uptake of herbicides like glyphosate in foliar applications. 34% Liquid AMS works as a water conditioner that prevents cold water sedimentation and nozzle plugging that is commonly found with dry AMS. 34% Liquid AMS contains a pH-stable antifoaming agent that reduces foaming when tank mixing. 34% Liquid AMS is recommended for use on a broad range of crop and non-crop uses including agriculture, turf, ornamental, industrial vegetation management (IVM); and specialty crops.