Water the area where you intend to plant your Bahai grass seeds well for seven days to encourage as much grass and weed growth as possible.
Stop watering and spray the area with a weed killer, such as one with glyphosate. Do not spray on a windy day when the spray may drift to plants you do not intend to kill, and do not spray if rain is anticipated within the next 24 hours.
Wait seven days for the grasses and weeds to die. Do not water during this seven day period. Rake with a hard steel rake to remove as much of the dead grass (and any other litter) as possible.
Roto-till the area to a depth of 6 inches. Break up dirt clods. Rake the area relatively level.
Spread 5 to 10 lbs. of Bahai grass seeds per 1,000 square feet. Ten pounds of seeds per 1,000 square feet will produce a thicker, more luxuriant lawn. Rake the seeds lightly after sowing, so the majority of the seeds are covered by no more than 1/4 inch of soil.
Roll a small soil compactor over the lawn to insure that the seeds and the soil are making good contact.
Water the lawn with a sprinkler. The initial watering should be 1 inch, approximately 1 hour of watering. Keep the soil damp, but not soggy for the next 14 days. Depending on weather conditions, this could mean watering the lawn twice a day. Set lawn mower for 2 1/2 inches and mow three weeks after planting.