The present invention relates to an agrochemical mixture for reducing nitrous oxide and/or ammonia emission from soils, comprising: 1) a composition (component A) comprising N-n-butylthiophosphoric triamide (NBTPT) and/or N-n-propylthiophosphoric triamide (NPTPT)； and 2) at least one strobilurin (component B) selected from the group consisting of pyraclostrobin, azoxystrobin, dimoxystrobin, enestroburin, fluoxastrobin, kresoxim-methyl, metominostrobin, orysastrobin, picoxystrobin, trifloxystrobin, pyrametostrobin, pyraoxystrobin, coumoxystrobin, coumethoxystrobin, fenaminostrobin (=diclofenoxystrobin), flufenoxystrobin, 2-(2-(6-(3-chloro-2-methyl-phenoxy)-5-fluoro-pyrimidin-4-yloxy)-phenyl)-2-methoxyimino-N-methyl-acetamide, 3-methoxy-2-(2-(N-(4-methoxy-phenyl)-cyclopropane-carboximidoylsulfanylmethyl)-phenyl)-acrylic acid methyl ester, methyl (2-chloro-5-[(1-(3-methylbenzyloxyimino)ethyl]benzyl)carbamate and 2-(2-(3-(2,6-dichlorophenyl)-1-methyl-allylideneaminooxymethyl)-phenyl)-2-methoxyimino-N methyl-acetamide in synergistically effective amounts. In addition, the present invention relates to the use of a mixture as defined above for synergistically reducing nitrous oxide emission from soils. Moreover, the present invention relates to the use of a mixture as defined above for synergistically reducing ammonia emission from soils.
