Chemical and biochemical preparations for strengthening the natural defenses of plants used alone or in combination, for agricultural use in protecting plants and plant products against disease and stress and promoting plant health; Biostimulants as plant nutrition preparations and plant growth stimulators for agricultural purposes; Phytosanitary preparations for, namely, to strengthen the plants' natural defenses against stress and disease, i.e. yeast and yeast extracts for use in plant production to improve plants' growth; Agricultural biostimulant preparations used to promote plant health, reduce the effect of stress on plants, stimulate the internal metabolism of plants, and improve the efficiency of nutrient use by plants, i.e. plant hormones; agents against deficiencies in plants, namely, preparation for fortifying plants; soil fertilizers; fertilizing preparation for plants; plant fertilizers; fertilizer for plants, namely, vinasse, foliar fertilizer