Plant nutrients.

Chemicals used in agriculture, horticulture and forestry; plant nutrients and plant supplements; plant food; preparations and substances for promoting or regulating plant growth; fertilisers; organic or chemical fertilisers; fertilising preparations; liquid fertilisers; mulch for soil enrichment (fertiliser); soil additives (fertilising); soil conditioning preparations and improvement substances; manures; compost; chemical additives for compost; bacterial preparations for use in horticulture; hydroponic materials; hydroponic fertlisers and substrates