Getting to the grass root of the problem grass is the largest irrigated crop in the USA.
Like other crops grass depends on the health of the soil in which it grows.
Moisture and nutrient retention is crucial to keeping your soil in good shape.
Clover is good news not bad news at least in moderation. I bit less attractive but a force for good with grass. Nodules on the clover store and deliver nitrogen more effectively than synthetic fertilisers.
Home chemical applications tend to be significantly over done compared to agriculture. Less not more is far better.
Water wisely in early morning. Evening watering can encourage some disease.
Allow clippings to fall back on the grass and rot down to keep the soil in good heart.
Higher cutting blades and grass helps prevent weeds and helps retain moisture.
Other Methods for Healthy Grass Lawns
Scarifying – rake out the dead leaves and detritus
Aerating – spike the soil to allow air in and de-compact the ground
Feeding – nitrogen rich food is the grass’s choice
Top Dressing – a bit of sand and soil brushed in helps new roots
Moss Control – get rid of moss in spring
Weed control – selective chemical weed killer
Damage Repair – even the best lawns can get damaged – patches reseeding or just turning the edge of a turf around can help