i'll tell ya' how. mornings, about 10 am, i go out and give them a dose and a half of nutes. sun warms things up to the 90's all day. they suck up the food. evenings, about 6 pm, i flush them. everyday they get flushed with a double watering. i use the hose. i water everything then turn around and water it all again. this evens out any dry spots in the pot and flushes out the nutes fed earlier. they soak over-night, sucking up clean fresh water. morning comes and i start all over. this is everyday.
people say you need a lot of roots to get big plants. i think that may be wrong. well it's obviously wrong. the roots grow and grow seeking out areas that are rich in the nutes they desire. if you supply what they need locally they don't need to seek out. they can focus less energy on root growth and more on above ground growth. the roots i do have are huge. they break the surface and are very thick and stout. i imagine bigger thicker roots can suck up more. so it seems bigger roots may be better than more roots.
root bound. what's that? oh, it's bullshit.