Abstract: The present invention relates to mixtures comprising a carrier A comprising a compound I (first nitrification inhibitor) and a carrier B optionally comprising a compound II (second nitrification inhibitor), wherein the compound I (first nitrification inhibitor) and the compound II (second nitrification inhibitor) are both selected from the group consisting of different nitrification inhibitors; to a method for improving the nitrification-inhibiting effect, or for increasing the health of a plant using mixtures of one compound I and one compound II; to the use of mixtures comprising compounds I and compounds II for increasing the health of a plant; to agrochemical compositions comprising these mixtures; and to plant propagation material, comprising these mixtures or these agrochemical compositions. The present invention especially relates to mixtures comprising DMPSA and DMP/DMPP.

Abstract: The present invention relates to mixtures comprising a solid carrier comprising an urease inhibitor and a further solid carrier comprising a nitrification inhibitor such as 3,4-dimethyl pyrazole phosphate (DMPP) or 2-(3,4-dimethyl-1H-pyrazol-1-yl) succinic acid (DMPSA), to a method for improving the nitrification-inhibiting effect, or for increasing the health of a plant using mixtures of at least one compound I and at least one compound II; to the use of mixtures comprising compounds I and compounds II for increasing the health of a plant.