Less mowing - with concentrated foliar feeding you apply smaller amounts of fertiliser more frequently. This promotes consistent growth and lawn improvement, rather than huge spikes in growth that require lots of mowing.
Less water usage - one of the best reasons for fertilising this way is the scarcity of water. It's much quicker and easier to apply a liquid via a pressure sprayer, with water usage as low as 5L per 100m2, which is a lot less than standard granular fertilisers that require watering in. You also don't have to wait for rain to water it in for you.
Less leaching - when small amounts of nutrients are applied, as with foliar feeding, this reduces the potential for nutrients to be washed away or leached into waterways.
Rapid uptake - With the product entering the plant through the leaf, results are seen faster.