Posted 6/7/2013 20:36 (#3143168 - in reply to #3142538) Subject: RE: Soya bean yield mystery.
N FLA
I would say you need some test strips of potash. Looks like your rate is about 42 lbs per acre. May not be enough potash on your high cec soils. Seems like there wouldn't be enough on low soils either. Anyway I would consider that. What % K saturation do you see on each soil?