Oshkosh Country Club 5-16-2011

It was another great DryJect day at Oshkosh.  Superintendent Kris Pinkerton, CGCS and crew did a great job.  Most of the greens were old, native soil based with a good layer of sand topdressing built up.  Over and over, it has been my experience with what I have seen and also in my own course management practices, the frequent, light topdressing is the absolute best thing you can do for quality greens.  Bar none.  The frequency is a minimum of every two weeks, weekly is the best if you can manage it.  I always did the topdressing from spring startup to shutdown in the fall, with the last application being heavier to cover the crown of the plants following the snowmold fungicide application.  You do have to vary the rate of sand based upon the growth rate of the turf, but the frequency schedule must remain intact.  Anyway, on to the photos!

The DryJect process in motion.  Note the buckets as bulk sand was used here.  Sand is stored in a silo and dry, then ferried out in carts.  The alternative is bagged sand which is more efficient, but more costly.  You also need equipment to move pallets of sand around.

This is an awesome shot into a USGA style construction green.  Injection rate is about 500 lbs per 1000 square feet.

In this photo, the shot penetrated below 4 inches.  But note above where last fall's treatment shot (where the ballmark repair tool is) exited out the bottom of the profile, over 6 1/2 inches! OR MORE.

Here is a tremendous blast that went way out the bottom of the profile.......

.....exiting out the bottom of the sample to depths beyond

Here you can follow the trajectory of the shot from top to bottom.

Here you can see the results of one pass of a drag brush.  Finishing techniques vary from course to course depending upon equipment and manpower levels.  However you do it, the greens are playable with great ball roll, typically in the same day.  You simply can't beat DryJect for agronomic and economic benefits!!