If I could add to that, Stephen is exactly right. Just a little more information on that: a study released by the University of Saskatchewan in 2010 reported that growers found a total economic benefit of $26 per acre with $15 per acre in carry-over benefits due to savings in weed control costs the year after growing canola—Stephen mentioned that with his pulses—as well as an $11 per acre direct benefit to their farm as well.
So there has been some research done recently that quantified that, and it verifies what Stephen is saying.