Posted 7/22/2006 21:49 (#28992 - in reply to #28937) Subject: RE: My spin on high potash testing soils.
Centre county Pennsylvania, USA
Our experience is very similar to that here also. We seem to grow best crops when we add at least crop usage amounts of K every year, no matter what the soil test K level is. On corn we try to add as much K as we do N, every year. We haven't made any scientific study of return on investment for using that much K, but our PHI corn never goes down.
Potash and drought proofing?
