Agents for improving the n-utilization of mineral and/or organic fertilizers that contain urea

摘要

The invention relates to chemical compositions which contain a specific urease inhibitor and at least one compound selected from special nitrification inhibitors and 1H-1,2,4-triazole. The compositions are suited as additives for nitrogen fertilizers containing urea. The yields or biomass production of cultivated plants can be substantially increased by using nitrogen fertilizers of this type. In addition, the inventive compositions can be used to prevent losses of nitrogen or to reduce the ammonia load in animal stalls or during storage of liquid manure.