Chemical additives for fertilisers; fertilisers; fertilisers consisting of compounds of nitrogen; liquid fertilisers; mulch for soil enrichment (fertiliser); nitrogenous fertilisers; peat (fertiliser); phosphates (fertilisers); salts (fertilisers); seaweeds (fertilisers); slag (fertilisers); superphosphates (fertilisers); manures; manures for the soil; soil conditioners (other than sterilising); soil improvement substances; preparations of trace elements for plants; trace elements for use in agriculture; trace elements for use in horticulture