Once gravitational drainage decreases, water continues moving through the soil by capillary action.
Capillary forces allow moisture to spread laterally and vertically through small soil pores, redistributing water beyond the immediate irrigation point.
This process contributes significantly to maintaining moisture availability between irrigation events.
The effectiveness of capillary redistribution depends strongly upon soil structure and pore geometry.
Engineering solutions that improve this natural process may increase the volume of soil from which roots can obtain water without requiring additional irrigation.
Radixora therefore considers capillary behaviour an opportunity for optimisation rather than merely a passive physical phenomenon.