Abstract: The invention relates to an aqueous solution of a mixture for treating urea-based fertilizers/fertilizers containing ammonium that contains 1,2,4-triazole and 3-methylpyrazole in the weight ratio 2/1 and at least one polyvinyl alcohol, polyvinylpyrrolidone and a tenside.

Abstract: The invention relates to N-phenylphosphoric acid triamides of general formula (I) to a method for the production thereof and to their use as agents for regulating or inhibiting enzymatic urea hydrolysis.

Abstract: This patent describes nitrification inhibitors characterized by the fact that they contain as their active ingredients 1-hydro-1,2,4-triazole, a substituted 1-hydro-1,2,4-triazole, or their salts or metallic complexes, plus at least one other chemical compound, such as a substituted pyrazole, or its salts or metallic complexes, dicyanodiamide, guanyl thiocarbamide, thiocarbamide, ammonium rhodanide, or ammonium thiosulfate, where said combination exhibit readily recognizable synergetic effects compared to the case where said chemical compounds are employed alone, and thus provide benefits in terms of better efficacies, reduced dosages, and/or cost savings.

Abstract: This patent describes nitrification inhibitors characterized by the fact that they contain as their active ingredients 1-hydro-1,2,4-triazole, a substituted 1-hydro-1,2,4-triazole, or their salts or metallic complexes, plus at least one other chemical compound, such as a substituted pyrazole, or its salts or metallic complexes, dicyanodiamide, guanyl thiocarbamide, thiocarbamide, ammonium rhodanide, or ammonium thiosulfate, where said combinations exhibit readily recognizable synergetic effects compared to the case where said chemical compounds are employed alone, and thus provide benefits in terms of better efficacies, reduced dosages, and/or cost savings.

Abstract: This patent describes nitrification inhibitors characterized by the fact that they contain as their active ingredients a substituted pyrazole, or a salt or metallic complex thereof, dicyanodiamide, and one of the compoundsammonium thiosulfate,biguanide, orammonium rhodanide. The combinations of the present invention are more efficacious than the individual ingredients alone and binary combinations of the same ingredients, and are thus superior to same from the ecological, phytotoxicity, and cost-effectiveness stand-points, as well as in terms of their tendencies to form undesirable residues.

Abstract: It is the object of the present invention to develop agent combinations having an improved synergistic effect with regard to the inhibition or control of ammonium nitrogen nitrification.It was unexpectedly found that agent combinations which consist of at least one compound of the general formula ##STR1## with M with n=1 and greater than 1--in case of coordination compounds--standing for several mono- and multivalent metal ions, but being negated with n=0 in case of metal salts of substituted pyrazoles,A being the counterion in case of anion complexes and pyrazolates, preferably ammonium, alkali and alkaline earth, the 3-methyl pyrazolium cation in case of anion complexes and additionally Fe and Al in case of metal salts; b being in the range of 0 to 4,X being the same or different and embodying several mono- and multivalent inorganic or organic anions with q=0 to 6,R.sub.1 being hydrogen, methyl or halogen andZ representing hydrogen, CONH.sub.2, CNHNH.sub.2 or CSNH.sub.