Fill a fertilizer spreader with a balanced granular fertilizer, such as 10-10-10 or 10-6-4, before installing the zoysia sod on the ground. Use the application rate suggested by the manufacturer; work it into the top 3 to 4 inches of soil using a tiller or a pitch fork.
Wait eight weeks after installing the zoysia sod to allow the roots to firmly attach to the underlying soil. Fill a fertilizer spreader with a slow-release, high-nitrogen fertilizer. Push the spreader over the lawn in side-by-side rows, applying it at the rate indicated on the packaging. Water well after application to dissolve the fertilizer.
Wait until mid-fall and fill the fertilizer spreader with a granular fertilizer labeled as a winterizer. Use the amount recommended on the package label. Push the spreader over the zoysia sod, applying it just as you did the previous fertilizers. Winterizers increase the cold tolerance of zoysia sod and protect the root system.