EM•1® Microbial Inoculant – Soil and Crop Support

The original. Manufactured in the USA by EMRO USA, the only authorized EM Technology® producer in the United States and Canada.

EM•1® is a concentrated liquid microbial inoculant used to support soil biological activity — helping growers maintain the microbial balance that healthy, productive soil depends on.

EM•1® is applied across corn, soybean, tomato, peanut, rice, barley, wheat, and other commercial crops as part of broader soil management programs, supporting root development, organic matter breakdown, and nutrient cycling processes. For nitrogen-management programs specifically, see our EM® Nitro Protocol page for field trial and commercial implementation data, including results and limitations.

Who uses it

From backyard gardeners to large-scale commercial growers, EM•1® is used across agriculture, composting, turf management, and environmental applications in more than 100 countries. Certified Organic by CCOF. OMRI Listed® (NOP: Microbial Inoculants) for use as a crop management production aid and as a crop fertilizer/soil amendment.

Sizes available

16 oz and 32 oz for home gardens and small operations. 1 gallon through 275 gallons for commercial growers, farms, and bulk buyers.

Certified Organic by CCOF · OMRI Listed® (NOP: Microbial Inoculants) · Made in the USA · EM Technology® licensed from EM Research Organization, Japan