Lee West1, David Greenshields2, Scott Inman1 and Mary Leggett2, (1)Novozymes Bioag, Salem, VA (2)Novozymes Bioag, Saskatoon, SK, Canada
Phosphorus nutrition is key to strong stand establishment and yield, but phosphorus can be difficult to deliver because much of the applied P is quickly immobilized in the soil. Microbial activity is an important part of the P cycle that transfers phosphorus from tightly bound soil forms to plant available forms. Novozymes has been testing phosphorus solubilizing organisms at the farm scale (3 acres min) for commercialization since 1997 leading to the commercialization of Jumpstart™. Over that time we have conducted 171 wheat trials, 186 pea trials and 37 lentil trials. In these trials each site is treated as a replicate and anaylsed using a paired comparison test comparing inoculated plots vs. uninnoculated plots. Positive yield responses were recorded in 77% of the wheat trials averaging 5.3 % yield increase, 82% of the Pea trials averaging an 8.3% yield increase, and 76% of the lentil trials averaging a 5.5% yield increase.