Q.What Fertilizer Use For A New Lawn
I have a new roll lawn from 3 weeks but after I mowed it I realized that there are some parte which the grass is Yellow and dry. I didn’t put any fertiliser before. Now I have to and I bought a fertiliser but after the purchase I realised that is not raccomanded for lawn less then 6 months old. Please can someone help me??? Thank you in advance

Certified GKH Gardening Expert
Since new grass roots are sensitive to fertilizers, it isn't recommended to feed until the lawn is well established.
It is important to lay the foundation of the lawn with plenty of rich topsoil to provide nutrients until it is established.
As for now, the spots are likely caused by over, or underwatering. This article will help you to care for newly laid sod:
https://www.gardeningknowhow.com/lawn-care/lgen/installing-sod-instructions.htm
This will help you to fix yellowing issues in the future:
https://www.gardeningknowhow.com/lawn-care/lgen/fixes-for-yellow-lawns.htm