View Full Version : famous university mulching mowing study

06-07-2007, 06:53 PM
There's a rather old (by now) but famous university study in which scientists and researchers determined that mulching is better for lawns than bagging is. Everybody continually cites the study when talking about mulch mowing as opposed to bagging, but as famous as the study is, I can't seem to find it (or info on it) on the web.

If anybody can cite the study, the year done (I'd guess about 1980 or '85), and the institution that did the study, I'd appreciate it if you'd post it here.

Many thanks!!

06-07-2007, 07:07 PM
I would like to see it also.

06-07-2007, 07:30 PM

http://www.yardandgardenonline.com/mulching_versus_bagging.htm This doesn't cite any university studies or anything like that.

Purdue comes to mind


They offer several other publications


grass disaster
06-07-2007, 07:40 PM
anything like this for aerating

06-07-2007, 07:44 PM
anything like this for aerating

The 2nd purdue link has a lot of information



06-07-2007, 07:54 PM
Many thanks for the links!

Unless I'm missing something, though, all the sites, including university ones, simply flatly state that mulching is better, without citing studies or research.

I'm looking for the research works that the "mulching is better" statement is based upon.

I assume that it is, but am disturbed that the "mulching is better" mantra may just be the sort of thing that gets repeated mindlessly, the way the statement "clover is good" was repeated in the 1930's and then "clover is bad" was repeated in the 1960's and then "clover is good" again is repeated today.

I want science. Anybody got it?

06-07-2007, 08:55 PM
Thats the best I could come up with. Some give an explanation. As far as numbers and things like that might see was Michigan State or Rutgers turf have to offer. I am thinking either one of those two did a study a while back.

06-07-2007, 09:36 PM
Here's a recent (1997/2000) one to get you started:


Google : Heckman Turf quality for some extra reading.

06-07-2007, 09:49 PM
Here's another possibility: http://jeq.scijournals.org/cgi/content/abstract/32/5/1694

Google : Turf clippings management

And my latest finding: go to Google Scholar for research reports!!!

06-07-2007, 10:33 PM
Tagging this so I can find it when I get home.

Gonna print some of this off.

Good stuff!

06-07-2007, 10:36 PM


thanks for the references - just what I was looking for.........

I'm surprised by how little science has been applied to clipping management practices. The studies you cite are initial studies. Lot more work needs to be done. It's amazing how many blanket, take-it-on-faith statements there are out there, considering we really don't know much of anything yet.