In a method of producing granular or pulverulent materials containing sulphur, particles of sulphur are mixed with an inert or filler material, preferably bentonite, to form said granular or pulverulent materials. The method of producing such materials may be by including an aqueous solution of a binding material therein, mixing being effected at ambient temperature, preferably in a granulating mixer suitably having an inclined granulating surface. Alternatively, the granular or pulverulent material may be produced by feeding the mixture of sulphur particles and inert or filler material between counter-rotating synchronous rollers where pressure is applied to form material of suitable size. In such method, it is possible to add a metallic soap to the mixture to act as a release agent. The material so produced can then be applied to the land. The method is also applicable to producing granular or pulverulent mixtures containing particles of magnesium, copper, zinc or iron.
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