The Master Plan's bunker design reduces the bunker square footage by approximately 50%. Therefore, areas which used to be sand are now turf--either native area, or primary rough. While the sod used in these locations has initially done well, the lack of nutrient holding capacity in the sandy soil beneath is now leading to thinning of the turf.
In order to address this issue, we decided to introduce some organic matter into these areas. We began this process by applying a heavy layer of compost with our topdresser. (You can tell right away this is good stuff just by the smell!)
After placing the compost, we follow up with the aerifier, then allow the plugs to dry. Next, a steel mat is used to break up the plugs, and drag the compost down into the holes. As a final step, the remaining thatch is blown off.
With (hopefully) no cart traffic in these areas, we will be able to continue this process throughout the fall. We purchased 60 cubic yards of the compost material, so you'll be able to enjoy the sweet smell of farmland for some time to come.
Keep in mind that the need to amend golf course soils is hardly new. This brief USGA historical article discussing early issues at Pinehurst is noteworthy:
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