Finally got around to watching this video. Burning bermuda is more common in the midwest. Elsewhere it is considered to be weird. Had he left the burned grass alone, the argument is that the blackness of the ash on the ground helps absorb the sunlight to warm the soil a week or two earlier and get the bermuda growing earlier. Once he spread the sand on the ash, that advantage was gone. But then he spread black manure. By watering every morning that reblackened the manure for the sun and soil warming should occur. That's the theory.

People who do this will tell you the grass comes back faster because they can see it. Well, you can see it. What they cannot see is the grass is returning in the unburned lawns, too. You cannot see the new growth because the tan color of the dormant grass blocks the visual appearance of the darker green. But the new growth is there. Bermuda grass makes a fine organic material to recycle back into the soil. When you bur it you burn off all the good organic protein, minerals, enzymes, and whatever was left in the dormant grass. The ash contains potassium and in a concentrated amount since there is no other material left. If your soil was already rich in potassium, then burning is really a bad idea.

I don't like the idea of adding sand when you don't need it. When do you need it? If you have low spots in the yard that won't drain, then add sand to bring it up to level or give it a slight crown. Otherwise leave it alone.

I don't like the idea of adding manure. Manure stinks and continues to stink for weeks after applying. I firmly believe Mother Nature gave us a sense of smell so we would know when to steer away from certain situations. Had he added compost, that would be different. I believe it would have been a waste of compost, but still better than manure. Furthermore I have found the Black Kow products to have a goodly amount of sand in them. You're paying a high price for sand in your product.

I don't know anything about burning the lawn, but I'm an expert at that look the guy's wife gave him and the hand wave. That's the one that says, "Idiot... gonna burn the house down."