| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to production of claydite gravel which is used to decorate flower gardens, flower beds and as drainage in pots for houseplants. In the method of making claydite gravel, involving preparation of a clay mass, moistening said mass, moulding granules, drying said granules, firing and cooling, a layer of a water-soluble adhesive substance is applied onto the surface of the cooled granules, followed by a layer of mineral fertiliser, and then held until hardening of the layer of adhesive substance, wherein volumes of the layers are in ratio of 1:2-2:1. In the method of making claydite gravel, involving preparation of a clay mass, moistening said mass, moulding granules, drying said granules, firing and cooling, a layer of a mixture of a water-soluble adhesive substance and a mineral fertiliser, taken in volume ratio of 1:2-2:1, is applied onto the surface of the cooled granules and held until the layer of adhesive substance hardens.EFFECT: broader functional properties: when the claydite gravel is used to decorate flower gardens, flower beds and as drainage, the gravel gradually releases mineral fertiliser into the soil, thereby improving nourishment of plants as they grow.10 cl, 7 ex |
