Posted 9/22/2008 13:44 (#466605) Subject: Very High P&K levels need any fertilizer?
I have some very high testing P&K farms. Bray P1 is in the 30-50ppm, and K is in the 200-250ppm. Looking to raise a corn/soybean rotation. Would I benefit from adding any additional P or K? Or would it just be wasting money? Fields are located in Central Iowa.