Microbial Activity

In 1991, researchers at A&L Midwest Laboratories conducted a trial using Menefee Humate™ on microbial samples in Omaha, Nebraska.



The trial consisted of two treatments. The first treatment, Control, included no applications to the fertile midwest soil. The second treatment, Menefee Humate, included 200 lbs of Menefee Humate™ per acre added to the soil.


  • Treated soil experienced a 30% increase in microbial activity

  • Treated soil also showed increased soil sulfur and soil potassium, resulting from improved uptake of various nutrients.

Research For Other Crops