Manufacture and use of agricultural spray adjuvants for hard water conditions
The invention pertains to a method for manufacture and use of pesticides or agricultural spray adjuvants that counteracts the effects of hard water cat ions on anionic pesticides when applied in water spray solutions.
1. A water soluble glyphosate composition consisting essentially of:
(a) an aqueous glyphosate solution consisting of glyphosate or salt thereof as the sole pesticide active ingredient; (b) a mixture consisting of an effective amount of a mineral acid selected from the group consisting of sulfuric acid and hydrochloric acid and 30-50 wt percent of a polyamine surfactant selected from the group consisting of tallow amine ethoxylate and coco amine ethoxylate combined in an agricultural spray solution;
wherein said composition does not contain ammonium sulfate (AMS); and
wherein said composition consists of a ratio of 1 quart to 2 gallons of (b) to 100 gallons of (a); and wherein said composition has a pH above the PKa 2 of glyphosate, and wherein better herbicidal efficacy is provided in comparison to 5-20 pounds AMS per 100 gallons of (a).
2. The composition as claimed in claim 1 , wherein said acid has the ability to completely or nearly completely dissociate in water and react with cations.
3. The composition as claimed in claim 1 , wherein said polyamine surfactant is tallow amine ethoxylate.
4. A water soluble glyphosate composition of claim 1 wherein said composition consists of a ratio of 1 quart to 1 gallon of (b) to 100 gallons of (a).
5. The composition as claimed in claim 1 , wherein said polyamine surfactant is coco amine ethoxylate.
6. The composition as claimed in claim 3 , wherein said mineral acid is sulfuric acid.
7. The composition as claimed in claim 3 , wherein said mineral acid is hydrochloric acid.
8. The composition as claimed in claim 5 , wherein said mineral acid is sulfuric acid.
9. The composition as claimed in claim 5 , wherein said mineral acid is hydrochloric acid.