This starter fertilizer contains XCU® slow-release fertilizer technology. XCU® slow-release fertilizer is unique to the market and provides gradual, steady nutritional uptake for up to 10 weeks of plant response. XCU® fertilizer has a high nitrogen (N) content (43%) with the unique addition of sulfur (4%), which provides added nutrition to the plant and can amend the soil. The value of a slow-release fertilizer like XCU is that more area can be covered per application using less fertilizer, which is more efficient and economical. Also, with less N lock-off, more of the applied N is taken up and utilized by turfgrass or plants in the desired time frame.