Chemicals used in agriculture, forestry and horticulture; soil treatment compositions and formulations in this class; soil improvement chemicals and agents; plant growth stimulants; plant nutrients; seaweed plant food; fertilizers; fertilizing preparations; fertilizers including solid and liquid fertilizers, nitrogenous fertilizers, phosphates, salts; seaweeds (fertilizers); seaweed extracts for use as a fertilizer; controlled release fertilizers; slow release fertilizers; potting soil; potting mixes; compost; soil additives (fertilizers); soil improvers; soil conditioners; soil conditioning chemicals and agents; trace elements for plants; preparations of trace elements for plants; biological microbial coating; manures; humus; peat; top dressing; manures including nitrogenous lime