Forest in Garden
Practice grass-cycling by leaving short grass clippings on lawns after mowing, so that nutrients and organic matter are returned to the soil.
Different areas of your landscape have different water requirements.
Shrubs need much less water than lawns and drip systems should never be scheduled on the same program with lawns.
Establish separate watering schedules for those areas.
Remove irrigation water and fertilizer from areas where you don't want weeds to grow.