Basf Aktiengesellschaft

Thomas Barth

Norbert Rieber

Klaus Erhardt

Stefan Rittinger

Edgar Leibold

Randall Evan Gold

Klaus Horchler Von Locquengh

J&uuml;rgen Dressel

Jurgen Dressel

The use of inorganic or organic polyacids for the treatment of inorganic fertilizers, in particular the use of the polyacids as a mixture with at least one nitrification inhibitor for the treatment of inorganic fertilizers; the use of selected pyrazole derivatives as nitrification inhibitor in inorganic fertilizers and also as stabilizers of liquid manure or liquid fertilizer formulations, as well as the corresponding treated inorganic fertilizers per se; and novel pyrazole derivatives which can be used as nitrification inhibitors in inorganic fertilizers and also as stabilizers of liquid manure or liquid fertilizer formulations are described.

Nitrification inhibitors, and the use of polyacids which contain a nitrification inhibitor for the treatment of inorganic fertilizers

Nitrification inhibitors and the use of polyacids to treat mineral

A process for preparing pyrazoles of the formula I ##STR1## in which R.sup.1,R.sup.2,R.sup.3 independently of one another are C.sub.1 - to C.sub.20 -alkyl, C.sub.3 - to C.sub.8 -cycloalkyl, or C.sub.7 - to C.sub.20 -aralkyl or aryl, unsubstituted or substituted by C.sub.1 - to C.sub.4 -alkyl, halogen and/or nitro,

Process for preparing pyrazoles

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Ludwigshafen, Germany

Thomas Barth