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Product Description

Ag + Humus

Bio S.I. Ag Formula + Humus is a liquid soil inoculant with a broad and diverse spectrum of naturally occurring, beneficial soil borne microbes. They help rebuild the soil, convert organic matter to humus and help free up nutrients tied up in the soil. Plants are in a constant struggle to get nutrients they need at critical growth stages. Microbes work “hand in hand” with plants to get these nutrients to the plant in exchange for nutrients for their own use from plant exudates. If plant’s health is compromised, the exudates may not contain what the microbes need to survive. Ag Formula should be used as a part of your fertilizer program to improve the efficiency of both fertilizers and chemicals you use. It is hard for us to remember in today’s world but prior to the development of industrial means to fix nitrogen plants were totally dependent on microbes for nitrogen. Microbes are the only know organisms that can transform gaseous nitrogen into an organic form (ammonia) that can be used by plants.

Bio S.I. Agricultural Formula is not crop specific. It is used on any crop to help improve the root system, reduce stress, and it helps improve nutrient and water efficiency. It is not to be used as a replacement for fertilizer. You should not reduce fertilizer without proper soil testing to determine if sufficient nutrients are in your soil for the crops you are growing. Ag Formula + Humus will help release many tied up nutrients that the plant would not normally be able to get. This helps the crop be more productive and many times more disease resistant. Using compost is an excellent way of providing food for the microbes in the soil and those in Bio S.I. Ag Formula. The soil has many different forms of microbial life that are there to work with your crop to help release nutrients, improve roots systems, improve the plants immune system and help keep pathogens from becoming a problem naturally. Use fungicides when you must but remember to re-apply the Ag Formula at 4 – 6 ounces per acre to help re-establish the microbial community the fungicide just wiped out. This can help prevent the return of the pathogens in many cases. This application is a cost effective way to help your crop achieve maximum production.

Benefits of using Ag Formula + Humus:

  • Reduce crusting
  • Improve water and fertilizer efficiency
  • Improved plant vigor and disease resistance
  • Improved plant root mass


Apply Bio S.I. Ag Formula + Humus using surface spray rigs, pivots with injection systems, drip systems, and/or sprinkler systems. To avoid damage to microbes you will need to use impeller or diaphragm pumps—no roller or piston pumps—and keep the pressure at 40 psi or less. Ag Formula may be applied with fertilizers with a pH from 6.0 to 7.2 otherwise apply separately. Also apply the product as soon as possible; do not store for hours before spraying. Best results from applying the Ag Formula when you get to the field to spray if possible.

Do not mix with fungicides or pesticides.

Application rates: Normal application is one pint per acre before planting. If disease pressure is present such as fusarium or other pathogens then a quart per acre should be considered for best results. We now know that making small monthly applications (4 – 6 ounces per acre) is extremely beneficial for the crop and the soil during the growing season. This application may be made when applying foliar fertilizers or other inputs for the crop. Then in the fall apply another pint to help reduce plant debris over the winter.



One Size Does Not Fit All

Bio S.I. products come in a variety of sizes to meet your needs.



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