| abstract |
Herbicidal compositions are provided which contain combinations of glyphosate (N-(phosphonomethytlglycine) and sulfuric acid, and/or combinations of glyphosate, sulfuric acid and a chalcogen-containing compound of the formula R, - CX- R 2 wherein X is selected from oxygen and sulfur, R, and R 2 are independently selected from hydrogen, monovalent organic radicals, NR 3 R 4 and NR 5 , at least one of R, and R 2 being NR 3 R 4 or NR 5 , R 3 and R 4 are independently selected from hydrogen and monovalent organic radicals, and R s is a divalent organic radical. Such compositions contain reaction products of glyphosate and sulfuric acid, and/or of glyphosate, sulfuric acid and the chalcogen compound, and they may also contain excess glyphosate or sulfuric acid. They effect more rapid, more thorough, broader spectrum vegetation control, and are more stable chemically and less toxic than other glyphosate-containing herbicides. |