Here is a shot of cucumbers that were germinated with moisture from an olla that was filled with my automated drip system! You can see the hose from the drip going into the olla and the water level.
I was unsure if subsurface drip could germinate seed but it did. Last year, I saw alot of cotton that was germinated by stringing out polypipe in fields that were using subsurface drip.
I think I’m onto something…