Study Finds Higher Corn Yield with Pivot Bio Microbial Nitrogen

Cindy Zimmerman

A recent study at the University of Kentucky Martin-Gatton College of Agriculture, Food and Environment found that replacing 40 pounds of synthetic nitrogen with Pivot Bio PROVEN® 40 can increase corn yields while reducing reliance on synthetic fertilizer. The study showed an average corn yield of 195 bushels per acre across nitrogen rates, and plots treated with PROVEN 40 yielded an average of 11 bushels per acre more than the control plots.

Higher yields also suggest that applying microbial nitrogen in furrow can help bridge the nitrogen gap that can occur in fields with cover crop rotations. This occurs because the nitrogen is delivered directly to the roots, avoiding competition with cover crop residue. The increase is particularly noteworthy given the use of cereal rye cover crops and the lack of rainfall during various parts of the growing season. Under normal conditions, cereal rye competes with corn for available nitrogen.

Similarly, studies at North Carolina State University found that replacing 40 pounds of synthetic nitrogen with PROVEN 40 resulted in increased nitrogen and potassium uptake, resulting in greater biomass. Other results from the studies indicated higher corn yields.

“The study’s findings underscore the potential of microbial nitrogen fertilizer to maintain and even increase crop yields while reducing dependency on synthetic fertilizers,” said Clayton Nevins, senior agronomic scientist for Pivot Bio. “Not only are you replacing 40 pounds of synthetic nitrogen, but you are also delivering nitrogen straight to the roots, boosting plant health earlier in the season.”

Corn, Fertilizer, Nutrient Management, Soil