The research results confirming that the most toxic metal for test-plants is cadmium are presented in the article. The toxicity row Cd > Pb > Cu is determined. It is shown that "Ribav-extra" preparation facilitates the leveling of the toxicant negative action.
heavy metals, lead, copper, cadmium, cucumber, «Ribav-extra» preparation, seed sowing qualities, bio-stimulator, length of sprouts and roots, biometric indices, test-plant
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