Tiny Organisms. Massive Results.

We harness the hidden power of microbes to transform how you farm. More yield, more efficiency, and soil that works smarter every season.

Trusted by farmers across the world.

The Challenges

Nutrients get trapped. Residue builds up. Heat and drought take their toll. Your fields experience stress from many different angles every year.

Our Solutions

Direct Biologicals delivers targeted microbial blends that solubilize nutrients, break down residue, helping your soil thrive and your yields grow.

What Makes Us Unique

Direct Biologicals offers a complete range of agricultural biological products carefully designed to enhance your crops and maximize your return on investment.

Unlike one-size-fits-all products, our targeted biologicals solve specific challenges—from nutrient lock-ups to leftover crop residue mats – so you get the right solution, right where it’s needed.

Proven Benefits in Every Application

Mobilize nutrients trapped in the soil

Make phosphorus, potassium, and nitrogen available when plants need them most.

Break down residue and recycle organic matter

Speed up decomposition to enrich soil and prep for the next crop.

Improve tolerance to drought and heat

Support root health and help plants thrive in tough conditions.

Enhance soil biology

Restore microbial life below the surface and improve long-term performance.

Reduce compaction and improve water retention

Boost root depth and access to moisture across your fields.

Our Products

Nutri-Cycle

Increases root depth, nutrient access, and year-over-year yield potential.

Unlocks phosphorus, potassium, and nitrogen for better nutrient uptake.
Increases internal osmotic pressure, nutrient transport and cell wall rigidity to help plants thrive.
Builds long-term soil health through bioremediation and organic matter.

D-Comp Dry

Accelerates residue breakdown to unlock nutrients and improve soil health.

Breaks down tough plant fibers using a diverse consortium of bacteria and fungi.
Turns residue into slow-release nutrients for season-long feeding.
Supports carbon and nitrogen retention for healthier, more productive soil.

Heat Shield

Helps crops thrive under extreme heat, cold, and salt stress.

Uses endophytic fungi that live inside plants to improve resilience.
Improves tolerance to salinity and temperature swings.
Delivers up to 98% yield gains with a 93% success rate in independent soybean and corn trials under abiotic stress.

Nutri-Cycle Bloom

Stimulates the reproductive phase of plant growth, producing more blooms per plant, resulting in increased yield.

Boosts nutrient density, photosynthetic capacity and plant performance with photosynthetic bacteria.
Supports richer color and flavor in crops like tomatoes, peppers and berries.
Promotes healthy, vigorous growth through natural microbial activity within the stomata and root system.

About Direct Biologicals

Founded in South Dakota and trusted by growers across North America and beyond.

We create custom microbial products that help you get more from your soil, feed, and manure. Built on real field results, our solutions are designed to work where other inputs fall short.