By Harold Watters, Ohio State University Extension
One of my buddies often takes calls and visits fields where a problem has occurred. And although he doesn’t say this to the grower or crop consultant he visits with, afterward he tells me “it’s the agronomy, stupid.”
I have taught from the Ohio Agronomy Guide this year and used it for some excerpts a couple of other times as well — and even I forget what is in there. I sat last evening with one of our county folks — a good one, Bruce Clevenger — and an industry agronomist. We went through the Agronomy Guide and just kept finding these words of wisdom. I hope you will read through the publication but I want to share some of the nuggets that Bruce and I found:
- How is CEC determined?
- Page 28 — CEC = ppm Ca/200 + ppm Mg/121 + ppm K/390 + 1.2 x (7-BpH).