This is a newer technology that is
available called Hydroseeding. It is a
functional way to install a lawn with out
the mess of having straw. The formula
used is a mix of fertilizers and grass
seed to provide a thick healthy lawn. To
maintain the hydroseeded lawn, make
sure it stays wet. Constant watering will
enrich the formula to provide a high
quality lawn.  
Hydroseeding
After the seeing is done, having weeds in your yard is
a natural process (because if you didn't put in grass
seed, weed seeds would still be there). For the first
year, the weeds will be there. Mow the yard as you
normally would, and KEEP IT WATERED!!!!! After it has
been in for a year, add some Weed out plus fertilizer.
This will get rid of last years weeds and prevent them
from coming up for the next year.
Danchris Nursery and Landscaping