METHODS FOR IMPROVING THE EFFICACY OF ANIONIC HERBICIDES UNDER HARD WATER CONDITIONS AND SUITABLE COMPOSITIONS

摘要

The present invention relates to a method for improving the efficacy of anionic herbicides (B) under hard water conditions, comprising the steps of a) providing at least one anionic herbicide (B) and at least one aminocarboxylate (A), selected from the group consisting of methylglycine diacetate (MGDA; A1), glutamic acid diacetate (GLDA; A2), iminodisuccinate (IDS; A3), N-(2-hydroxyethyl)imino diacetate (HEIDA; A4), ethylenediamine-N,N'-disuccinate (EDDS; A5) and their salts; b)diluting components (A) and (B) with water, wherein the concentration of dissolved calcium, magnesium, iron and aluminum salts in said water is more than 120 ppm; and c) applying the diluted mixture to the area to be treated.