Lawn Care newbie

[SKYWALKER]

Hi,
I'm a new home owner and I have a question about lawn care:
- when I first got my house the lawn in the backyard had brown spots so
before doing anything I gave
it a good rake, cleaned the yard well and seeded the brown areas, and
applied a soil mixture that, according to the manufacturer has all what I
need to provide nutrition to the soil. (If anyone here from Canada, its
Super Soil from Loblaws). After about 2 weeks some of the brown areas grew
lawn but others didn't so I still have a patchy lawn. Any one knows why this
happens and how to repair it ?

Thanks,
AT

[JMooreTS]

>After about 2 weeks some of the brown areas grew
>lawn but others didn't so I still have a patchy lawn. Any one knows why this
>happens and how to repair it ?

Sometimes lawn seed doesn't sprout (seed became dry after sowing) or sprouts
slowly (low temperatures). Re-sow the seed and see what happens.

If nothing comes up you might suspect that there is something toxic in spots.
Could be concentrations of salt? Or other chemicals?