Cornfield at sunset

Our Products

Targeted biology. Practical solutions.

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

Our Products

Find your fit
Corn root systems from the supplied Nutri-Cycle page

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.
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Untreated crop residue, September 2025
Untreated
Treated crop residue, September 2025
Treated

D-Comp

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.
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Untreated corn, summer 2025
Untreated
Treated corn, summer 2025
Treated

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.
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Tobacco plant flowering under a blue sky

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.
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Cornfield at sunset

Pit Digester Plus

Pit Digester Plus boosts the value of every gallon by breaking down solids, reducing ammonia loss and trapping more nutrients for crop use—proven in both research and the field.

  • Breaks down solids, fiber and crusts using powerful microbes
  • Traps nitrogen in ammonium form to reduce volatilization and nitrogen loss
  • Improves pumpability and creates a more uniform, nutrient-rich slurry
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Start with the problem in the field.

Tell us about your crop, acres and the pressure you are trying to solve.

Talk to our team