A bioestimulant is any substance or microorganism that, on having be applied to the plants, is capable of improving the efficiency of these in the absorption and assimilation of nutrients, tolerance to biotic or abiotic stress or of improving someone of his agronomic characteristics, independently of the content in nutrients of the substance.
The agricultural bioestimulants act on the physiology of the plant of different forms and for different routes to improve the vigor of the culture, the performance and quality of the crop.
They are products of varied origins, without residues and insurances, increasingly used in a great variety of cultures.