Chad Lee, Extension Agronomist, University of Kentucky
Several soybeans have turned yellow in the past few weeks and further examination revealed little to no nodules. The problem has occurred with seed inoculated in the bag and seed inoculated at the farm. It has even occurred in cases where a 2x rate was applied at the farm. Several brands of inoculant have been indicated. It has occurred in fields all across the state. The problem has occurred in full season soybeans and in double-crop soybeans.
|A field with soybeans with nodules |
and soybeans without nodules.