Help Needed from Lucas Formula users (soil)

GSPfan

Member
Hi everybody! I have a green crack S1 from sickmeds at about three weeks right now. All of the bottom leaves on my plant are rapidly yellowing and falling off. I have been using the GH Lucas soil formula (6ml micro, 9ml bloom per gallon of water). The plant is producing well but something must be done. What do you guys think I should do to alleviate the problem for my next run of it's clones? More micro for more N? Additives? Anyone have experience in dealing with Lucas formula and N hungry strains?
 

GSPfan

Member
The leaves seem to be evenly yellowing from the bottom of the plant up but all new growth is green. Silasraven you are probably correct about it just needs more. It's just that I haven't grown a plant that yellows before week 5ish. And DeeTee the formula is 6:9 in soil and 8/16 in hydro as far as I know.
 

70's natureboy

Well-Known Member
There is another Lucas thread here somewhere that just wrapped up a couple days ago. A lot of people think it doesn't have enough N. Some people that actually try it find it doesn't have enough N too. Some strains just need a little more N. Lucas eventually changed to Floranova bloom and I did too for a while but I always keep some Floranova grow around in case they don't look green enough for me. You will have to get them some more N somehow or watch those leaves yellow and die.
 

DeeTee

Well-Known Member
The leaves seem to be evenly yellowing from the bottom of the plant up but all new growth is green. Silasraven you are probably correct about it just needs more. It's just that I haven't grown a plant that yellows before week 5ish. And DeeTee the formula is 6:9 in soil and 8/16 in hydro as far as I know.
You're right with the formula, being a hydro grower I didn't notice it for soil.
 
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