Division 1 A plant biostimulant shall be an EU fertilising product the function of which is to stimulate plant nutrition processes independently of the product’s nutrient content with the sole aim of improving one or more of the following characteristics of the plant or the plant rhizosphere:
United Kingdom
- (a)
nutrient use efficiency,
- (b)
tolerance to abiotic stress,
- (c)
quality traits, or
- (d)
availability of confined nutrients in the soil or rhizosphere.