To fertilize new sod, have a soil test done, time fertilizing correctly and choose the right fertilizer. You need a newly sodded lawn, fertilizer based on the amount of sod to cover and a spreader. The estimated time to fertilize a typical lawn is about 45 minutes to an hour.
- Have a soil test
Test soil to find out what nutrients are available. Nitrogen, phosphorous, calcium and potassium are crucial to plants. Fertilizers contain varying amounts of each nutrient. Test soil by hiring a professional or by using a home testing kit.
- Time fertilizing appropriately
Do not apply fertilizer to a new lawn for about two months after putting down sod. The roots need time to establish so the lawn can absorb nutrients. If sod becomes yellow and appears to be growing poorly, add fertilizer no sooner than a month after putting down sod. In this case, ask the sod supplier when the sod was fertilized.
- Apply the right fertilizer
Purchase a slow-release fertilizer with nutrient content matching the findings of the soil test. Apply no more than one pound of nitrogen for every 1,000 square feet of sod. After fertilizing the first time, follow guidelines from an agricultural extension office for your area on how often to fertilize your specific type of grass.