Biostimulants are a core ingredient in our fertilizer products. In the world of crop production, these microorganisms help repair the structure of soil to foster sustainable plant growth. Learn the facts behind biostimulant products with the following review.


While there is not an agreed upon definition as of yet, the 2018 Farm Bill described a biostimulant as a “substance or microorganism that, when applied to seeds, plants, or on the rhizosphere, stimulates natural processes to enhance or benefit nutrient use efficiency, tolerance to abiotic stress, or crop quality and yield.”

Healthy, Sustainable Soil

High Nutrient Uptake

Increased Disease Resistance

Humic Acids

These natural components collect together as a result of the decomposition of plant, animal, and microbial residues. Humic acids have a higher molecular weight and carbon content, and are darker in color than their counterpart, fulvic acids. Together with the other biostimulants, humic substances work to release essential nutrients such as Ca, Mg, K, and others to create a soil microbial biomass for fighting diseases.

Beneficial Bacteria

There are three different types of beneficial bacteria: free-living bacteria located around the root, bacteria that colonize the root surface, and bacteria that live within the roots. Each of these work together to promote plant growth by repairing nitrogen levels, reduce the growth of toxic pathogens, and increase plant resistance to insects and harmful bacterial pathogens.

Beneficial Fungi

Plant-beneficial fungi are a core component of biostimulant activity. By helping to extend the root system beyond the depletion zone, different types of fungi allow for enhanced uptake of nutrients and water. This not only increases a plant’s tolerance to drought stress, but in turn, improves soil aeration – expanding the water-holding capacity and symbiotic life process.


While we’re still discovering all of the advantages of biostimulant products, their use is guaranteed to increase your plant growth. Known advantages include:

  • Neutralized soil salinity to increase nutrients and carbon in soil structure
  • Improved soil aeration allows oxygen and moisture to penetrate the soil, improving water management effectiveness
  • Increased resistance to disease or insect infestation, reducing the need for pesticides


Innovation is at the heart of everything we do. Our research team takes the latest information regarding biostimulant activity and utilizes it to formulate the most effective fertilizer product for your crops. With Sigma AgriScience, you can trust to find an organic solution that will not only enhance your growing conditions but increase crop yields and overall profitability.

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