PFC 6: PLANT BIOSTIMULANTU.K.
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:U.K.
(a)
nutrient use efficiency,
(b)
tolerance to abiotic stress,
(c)
quality traits, or
(d)
availability of confined nutrients in the soil or rhizosphere.
2.Contaminants in a plant biostimulant must not exceed the following limit values:U.K.
(a) cadmium (Cd)
:
1,5 mg/kg dry matter,
(b) hexavalent chromium (Cr VI)
:
2 mg/kg dry matter,
(c) lead (Pb)
:
120 mg/kg dry matter,
(d) mercury (Hg)
:
1 mg/kg dry matter,
(e) nickel (Ni)
:
50 mg/kg dry matter, and
(f) inorganic arsenic (As)
:
40 mg/kg dry matter.