Ed Winkle - 8/4/2013 20:07 I even wrote a book about that! Actually it's a booklet and NoTill Farmer sells it for a small fee. I like soybeans too and I write about them often in my daily blog. https://www.google.com/#sclient=psy-ab&q=hymark+blogspot+soybean... My number one recommendation to you is to pull the top trifoliate randomly off one plant per acre and pull a soil sample at the same spot. Send them both to Midwest Labs and I will be happy to show you how I interpret the results. It's pretty simple if you buy the soil test recommendations but I have my own method of using the tissue test results to fine tune the fertilizer recommendation. Most beans are in bloom or setting pods and that is an ideal time to pull tissue. I sent a crate full in last week. Ed Winkle