I am big on drip irrigation. We use it on containers, flower beds and veggie garden, all controlled by two timers. Is that water from below that you spoke of?
No. You are still watering on top of the soil, although drip is probably the best system available for keeping the growing medium evenly moist...I water ‘from below’ so the root system has to draw water UP (along with nutrients in soil) into the plant. Result? Bushels of veggies...
How does that work when you’re top dressing with fertilizer throughout the growing season?