problem with my gdp's(not kens cut) yellowing

hey i have a few gdp's in my field, as well as other strains. the gdp are in soil, 80 gal smart pots, 8-10ft tall. plants need to be watered everyday. they are showing signs of nitrogen deficient but may be root bound. yellowing from the bottom up. may also be under fed. feeding is as follows, feed water water feed water water. each feeding is 8ml pure blend pro bloom, 3ml liquid karma, 3ml calmag+, 2 ml big bud, 5ml molasses. ph ends up being like 6.8-7. using creek water with a ph of like 7.0-7.4. i came into this field halfway thru due to past grower sucking. im giving them about 10-12 gallons with every watering and feeding, pots start to drain at about there. feeding has never increased due to boss's choice and being dumb. all plants in field have similar isues but different degrees. blue dreams are starting to show nitrogen deficient, maui wowie is a little more as well as royal kush, gdp seems to be the heaviest feeder. before buds started bulking up i was spraying with verde to keep things green but had to cut that off due to obvious reasons. boss thinks things are locking up but underwatering or some bullshit, but i see it unlikely due to a) were running fuckin botanicare, b) already feeding light anyways. this last feeding i thru in 2 ml of grow big to up my nitrogen. also we ran out of pureblend so we switched to left over big bloom and tiger bloom, last feeding was with 12ml of big bloom for my base. obviously wasn'[t enough cuz things kept yellowing. i have a gdp in the ground that i started watering further away from the plant to stretch them out and it is much more green but is starting to get yellow. so from this i see that possibly there is more room, more water and nutrients. nutrients stay in the soil around the roots cuz they dont get drained out like the ones in the smart pots. what do u guys think. im no noob just new to large outdoor grows

If possible, posting some pics would likely tell the tale. Barring that, if you're in the Northern Hemisphere, this sounds about right. It's normal for that to happen near the end of flowering (yellow leaves, from the bottom up). Some of my plants have more yellow bottom leaves than others. I've lost quite a few leaves in the past week (yellow and falling off). You don't want to give 'em much, if any, N now or the non yellow leaves may develop mold issues.

So how's the buds lookin'? That's the most important thing after all

Good luck

R2T

ill try to post pics tomorrow, leaves are fresh, no signs of over fertilizing on any plants, looks like straight N deficiency, just way too early

they are yellowing too early, im down to like 25-50% leaves now, buds are starting to bulk up. this gdp wont finish til like end of october begining of november. other field with same cuts are doing better but they are in the ground with a red clay surrounding the 3x3x3 holes, so nutes stay in them better, im in a swamp that dries up for the grow season but the water table is starting to rise especially cuz of the recent and future rains. im in norcal btw. im thinking that because of the smart pots, everything drains right out espeically the nitrates, plus the high ph, plus they switched to bloom nutres drastically and too early. roots are all weak cuz they underwater in the 110 degree summer, boss said they were over watering cuz he's dumb as fuck, also never used any micro organisms, until i was able to introduce them to oregonism and aquashield.