You should let your lawn grass grow to at least three inches, because taller grass becomes healthy and the weeds are automatically eliminated. Then mow the grass by leaving at least one inch grass from the bottom.
Make sure you mow the grass when it becomes fully dry because wet grass can moisten the blades of your mowing machine, affecting the cutting process.
Always keep the blades of your mowing tool sharp; it will help in mowing the grass in a balanced way.
Leave the clippings of grass in the lawn as it returns nutrients to the soil which is good for growing healthy grass.
Water your lawn at least once a week. However, watering twice is better as it will make the grass grow faster.
If you find weeds in your lawn, try to remove them manually and always avoid using chemicals for that purpose. You can use angle weeder or dandelion digger for plucking weeds from the lawn.
A thin layer of corn gluten meal can be applied to the grass to prevent weeds from germinating. This meal will also increase the protein level of the soil, in a natural way.
Use slow-release organic fertilizer once in a year especially in fall. You should also use small quantity of organic compost which will make the soil more compatible for the nourishment of grass and other plants.
If you see any gaps in the lawn where grass has not fully grown, put grass seeds in these areas. Make sure you water these patches regularly until the seeds start sprouting out.