hydroponic substrates; substrates for hydroponics; humus; humus top dressing; substrates for soil-free growing [agriculture]; chemicals used in agriculture, horticulture and forestry; soil conditioners for agricultural use; fertilisers and chemicals for use in agriculture, horticulture and forestry; soil conditioners for agricultural purposes; chemicals used in horticulture; synthetic fertilisers for agricultural purposes; soil conditioners for horticultural use; soil conditioners for horticultural purposes; soil amendments for horticultural use; soil conditioners; soil amendments for horticultural purposes; potting soil; organic potting soil; soil amendments; soil improving agents; soil improving preparations; chemical products for soil improvement; turf wetting agents; peat pots for horticulture; peat pots for horticultural use; peat for use as fertiliser; wood pulp; compost; compost [fertiliser]