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AZOS® Red Liquid
Nitrogen-Fixing Bacteria

Biological nitrogen fixation is an important source of nitrogen in agriculture and represents a promising substitute for nitrogen fertilizers. The free-living diazotrophic bacteria, Azospirillum brasilense, has the ability to convert atmospheric nitrogen into ammonia, contributing to the pathway that increases available nitrogen for plants.


AZOS Red Liquid is a concentrated bacterial formulation of A. brasilense, freshly produced only when ordered to ensure the highest product viability. AZOS Red Liquid can be used with all major agricultural crops and applied through various methods of application. 

Nitrogen is required in the greatest amount of all nutrients transported to plants through the soil. It drives chlorophyll production in the foliage and keeps plants green and growing efficiently. AZOS® (Azospirillum brasilense) is a naturally occurring bacteria that live symbiotically with a host plant and supplies necessary nitrogen. 

How does AZOS Red Liquid work?

Our atmosphere is made up of 80% nitrogen. AZOS absorbs this nitrogen as N2, converts it to a form that the plant can use and supplies it to the plant efficiently. 


Recommended single treatment on brassicas and co-treatment with MYKOS on most cereal & vegetable crops. Can be applied through drip line, tape, and most irrigation applications.


Not for use in organic crop and organic food production.

2.5 Gal_Azos_red_liquid_print.jpg
Image by Muhammad Syakir Sulaiman

Benefits of AZOS Red Liquid

  • Naturally occurring

  • Reduces nitrogen fertilizer usage

  • Produces healthier and more vigorous plants

  • Improves plant establishment

  • Greater tolerance to environmental stresses

  • Easy to use


Unit Size 
16 oz / 1 gal / 2.5 gal


Single Specie Diazotrophic Bacteria

Azospirillum brasilense ... 1 x 10^8 CFU / ml 

Directions and Applications 

Seed Coating: Apply at 0.5% by weight to the surface of the seed or 3 oz per 100 lbs of seeds.

Spray Application: Apply at a rate of 16 ounces per acre (0.80kg per ha) or 1 ounce per 3,630 sq. ft. 

May be mixed with other organic fertilizers or plant biostimulants. Not recommended for tank mixes combining fungicides, insecticides or soluble fertilizers with a high salt index. Mix contents of the package into 15 to 50 gallons of water and apply evenly to a one-acre area. 

Irrigation: May be applied by overhead or drip irrigation at the recommended rate of 16 ounces per acre. 

Caution: Do not expose to temperatures above 100° F (38°C). Do not allow inoculant to freeze. 

For more information concerning distribution, placing an order, product questions/applications, and field trials contact us at 1-800-784-4769.
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