| 摘要 |
The invention relates to a method for colouring fertilisers, characterised in that a pigment-preparation containing 5-60 wt.-% of at least one pigment, 40-95 wt.-% of a paraffin oil and/or vegetable oil, 0 10 wt.-% of a dispersing agent or dispersing agent mixture and 0-5 wt.-% usual additives is produced, each of the percentages being in relation to the total weight of the pigment preparation; the pigment-preparation is optionally diluted with paraffin oil and/or vegetable oil and the pigment preparation or the diluted pigment-preparation is applied to the fertiliser which is to be coloured.
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