il weedman - 6/11/2019 08:05 The difference between using the product and not using it teaches you more than looking at university plots. There's value in both. Controlled studies are invaluable. But I've spent 25 yrs writing herbicide recommendations and carefully scouting the fields afterwards to see what happened. And I do a great deal of comparing notes with a couple other agronomists (including one for a supplier) who are good at sleuthing out what works and what doesn't. |