Synergistic compound and Method for Selective fight against Weeds.

摘要

The present Invention relates to a synergistic Environment, which contains a sulfonylurea herbicide active as formula I M Z - so sub - NH 2.- het (i), in which z means a rest tiofenilo, Benzyl, phenyl substituted pyridinyl pirazinilo, phenyl, or heteroanillado alquilsulfonilamino m means; Hydrogen; or C 1-c 4 sub sub - alcohilo het means; and a five or six members Heterocycles substituted with two or three Atoms of nitrogen Ogeno a synergistically Active quantity, and a 5, 6, 7, 8 - tetrahydro - (1H, 3H - 1, 34) tiadiazolo - [3, 4] pyridazine hydrochloride or 7 -, 8 - dihydro 1H, 3H (1, 3, 4) - - - tiadiazolo [3, 4] pyridazine hydrochloride - The formula II in which X is Oxygen or Sulfur; mean sub - CH 2 - B sub - 2 - ch - CH = CH -; or other means; and a Phe substituted phenyl.The Medium according to the invention is suitable for selectively against weeds in crops of useful plants, especially in Cereals, corn, Rice and soy. The Invention also relates to a process for combatirmalas weeds in crops of useful plants, preferably in Cereals, maize, Rice and soybeans and the use of this new Medium.