sow grass seed

Sowing the seed's the easy bit - you need to prepare the area first, and the level of preparation depends on whether you're sowing a whole lawn, or just reseeding bare areas. Which is it?

This link along with its related links should answer your question;

<url>http://www.thegardenersalmanac.co.uk/Data/Lawn%20-%20Seeding/Lawn%20-%20Seeding.htm</url>

When i re-seed patches on lawns, i always mix equal amounts of grass seed with finely sieved compost, then sprinkle it around, then firm with a rake.