Non-Stop Deficiency Battle (PICS)

J

jronnn

Well-Known Member
flood and drain in rapid rooters/hydroton/1gal buckets. 400w A/C on 24/7, flood every 6 hours, 5.9PH 850ppm, RH 35-60% 72-78 degrees. nirvana ak48 are the bigger plants, sensi Northern Lights are the smaller ones

i made a lot of beginner mistakes when the plants were younger that stunted growth but they’re almost 2 months old (AK are about 2 weeks older than NL, NL went in the tray last week) and growth is still very slow and i been battling non-stop deficiency issues (thought i was calcium or nitrogen) I’ve tried using maxigro in different strengths with and without calmag and with and without r.o water and now I’m trying 5 parts flora micro with 4 parts flora bloom with 1/2 gram/gal epsom, making a perfect 3-1-2 ratio with r.o (121-40-81 with 122 calcium and 27 magnesium to be exact plus and extra like 13ppm from epsom) i know the NL and AK should be in separate trays but i don’t have that option right now

the problem is the fan leafs keep dying from the bottom and they’re showing spotting. the only fan leaves left on the AKs are the fan leaves at the top 3 nodes, I’ve also noticed the lower fan leaves are all really dry, especially on the northern lights the leaves are curling and crumbly with brown spots and I’ve also noticed the petioles are purple but I’ve seen people say AK48 just does that naturally but the NL have the purple too, also the new growth on the AK has yellow tips and the very newest growth has a brownish/red tint to it which has had me worried for a while

i also topped the all the plants exactly 9 days ago (tried to FIM lol) and i put a lighter next to the node where they were topped so you can see how much (how little) they’ve grown in the past 9 days (keep in mind i topped them again today so you couldn’t see the half inch of growth i took off the nodes i just topped)IMG_0388.JPGIMG_0396.JPGIMG_0444.JPGIMG_0436.JPGIMG_0452.JPGIMG_0447.JPGIMG_0449.JPGIMG_0391.JPGIMG_0397.JPGIMG_0413.JPG
 
rkymtnman

rkymtnman

Well-Known Member
i think your ppm is way too high. i never go above 1.2 EC (around 600ppm depending on meter you use). plants that small i'd be around 0.6EC (300ppm).

i'd give them a 24 hr flush with plain RO ph'd to 5.8 and then start back on lighter nutes
 
J

jronnn

Well-Known Member
rkymtnman said:
i think your ppm is way too high. i never go above 1.2 EC (around 600ppm depending on meter you use). plants that small i'd be around 0.6EC (300ppm).

i'd give them a 24 hr flush with plain RO ph'd to 5.8 and then start back on lighter nutes
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thats what i was doing before and was getting huge nitrogen deficiency isssues and even less growth and i read journals of people growing AK and they all say ak48 like high ppm and after topping my res with plain water my ppm is always lower than the ppm is started with. as far as my northern lights id agree they could probably use less ppm but i only have 1 flood tray so the NL don't really have a choice
 
rkymtnman

rkymtnman

Well-Known Member
your calculation of nutes is also wrong. i'm not coming up with 121 for N only 81. and also for cal. not 122 but 81.

how did you calculate?
 
J

jronnn

Well-Known Member
rkymtnman said:
your calculation of nutes is also wrong. i'm not coming up with 121 for N only 81. and also for cal. not 122 but 81.

how did you calculate?
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using this website that already has the grow,micro,bloom nute bottles information at the bottle, you just type the dosage. 7.5ml micro,6ml bloom per gallon into the table then just add the ppm from both tables. the micro is 121-0-20 and the bloom comes to 0-40-61
http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm
 
rkymtnman

rkymtnman

Well-Known Member
jronnn said:
I’m trying 5 parts flora micro with 4 parts flora bloom
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this is what i calculated with. i use the same calculator as you.

just use the lucas formula. it's proven. you can use it at 5/10 or 8/16 micro/bloom. use RO. no need for epsom salts.

i'd still flush for 24 hrs first if it was me.
 
J

jronnn

Well-Known Member
rkymtnman said:
if you really want to use 3-1-2 for veg, pick up a small bottle of dynagro foliage pro.

i personally use lucas for my bloom phase.
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yeah unfortunately i heard about dyna foliage after i bought a gallon each of flora and i only like the 3-1-2 ratio because I've heard its best and because I'm scared of running into another nitrogen deficiency which I'm scared will happen with lucas formula. what do you use for veg?
 
rkymtnman

rkymtnman

Well-Known Member
jronnn said:
yeah unfortunately i heard about dyna foliage after i bought a gallon each of flora and i only like the 3-1-2 ratio because I've heard its best and because I'm scared of running into another nitrogen deficiency which I'm scared will happen with lucas formula. what do you use for veg?
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it's hard to beat lucas for bloom in my opinion. 1-1-2 is better than 3-1-2 in bloom.

i've tried lucas, dg foliage pro, normal GH veg schedule all for veg. all have worked for me. right now i'm using the flora duo. i used the 1:1 for veg and 1:3 for bloom. seems ok so far. i don't veg for long so i don't concentrate too much on the veg phase. as long as they are green and healthy when i switch to 12/12 is my goal.
 
Resinhound

Resinhound

Well-Known Member
Im using micro and bloom at 1:2 ratio(lucas ratio),in flower im changing that to roughly 1:3 and have no deficiencies.Im normally a dynagro foilage pro user,but I thought id experiment with Lucas this round and im pleased with the results.I also agree you need to keep ec lower,1.2ec for me on a fully flowering plant.
 
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rkymtnman

rkymtnman

Well-Known Member
Resinhound said:
Im using micro and bloom at 1:2 ratio(lucas ratio),in flower im changing that to roughly 1:3 and have no deficiencies.Im normally a dynagro foilage pro user,but I thought id experiment with Lucas this round and im pleased with the results.I also agree you need to keep ec lower,1.2ec for me on a fully flowering plant.
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since i had the foliage pro, i tried it for bloom a few grows ago. i didn't like it for bloom. so i went back to lucas.

i think lucas and dynagro are both solid nutes and are very pH stable too. and cheap to use.
 
J

jronnn

Well-Known Member
rkymtnman said:
it's hard to beat lucas for bloom in my opinion. 1-1-2 is better than 3-1-2 in bloom.

i've tried lucas, dg foliage pro, normal GH veg schedule all for veg. all have worked for me. right now i'm using the flora duo. i used the 1:1 for veg and 1:3 for bloom. seems ok so far. i don't veg for long so i don't concentrate too much on the veg phase. as long as they are green and healthy when i switch to 12/12 is my goal.
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yeah i was saying i was going for the 3-1-2 for veg and I'm using lucas for bloom no matter what but out of those which would you say is best for veg? no nitrogen deficiencies or anything like that using lucas in veg?
 
J

jronnn

Well-Known Member
Resinhound said:
Im using micro and bloom at 1:2 ratio(lucas ratio),in flower im changing that to roughly 1:3 and have no deficiencies.Im normally a dynagro foilage pro user,but I thought id experiment with Lucas this round and im pleased with the results.I also agree you need to keep ec lower,1.2ec for me on a fully flowering plant.
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you're saying you're using lucas for veg too? no deficiencies like nitrogen deficiencies in veg using lucas?
 
J

jronnn

Well-Known Member
Resinhound said:
Ya thats what im saying.Micro haa plenty of nitrogen.

Thats kinda why there is a lucas formula.
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true but you know what i just thought... i forgot to shake the bottles of nutes before i used them... could that cause an issue? i assume it could
 
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