When to use lawn dressing on a new lawn

Question

Good day
I have just finished House construction and I want to install a new lawn.
In soil preparation, is it ok to lay lawn dressing and phosphate before laying/installing the grass?
Thank you, your help will be greatly appreciated

Answer 1

Generally, you will want to mix the chemicals in to the top 6 inches of topsoil before you lay sod or seed. This will keep the roots from burning due to too much direct contact with the chemicals.

Here is an article that will help you: https://www.gardeningknowhow.com/lawn-care/lgen/installing-sod-instructions.htm

Answer 2

Thank you, much appreciated