Nute Def? Heat Stress? Please Help! ton of pics

[wickywackyworld]

Hi all,

Well I've done the majority of my research here for my first grow and would like to thank all that contribute!

I started with 8 hybrids (white widow, and pure power plant) and 1 indica (blue hash) and they've done extremely well but I'm noticing what looks like some sort of deficiency maybe...

They are 85 days from seed and have been flowering for 33 days now.

Now for their environment:
homemade 3' x 4' area covered with panda film,
fox forest ocean farms soil,
3 gallon grow bags,
1k hps light at about 24 inches from canopy,
co2-1500ppm,
plenty of ventilation,
the canopy level temp is a constant 80f,
humidity is constant 45-50%,
im using nearly all of advanced nutrients 'boosters' along with their 3 part nutrient base, and for watering I am alternating between plain water, and nuted water (~1000ppm @6.3-6.5 ph)

I was thinking originally that it was prolly a Mg deficiency so I added a light dose of calmag for my last watering and its still getting worse... or so it appears.

If anyone can help me nail this problem down it would be much appreciated!!!
Thanks guys

The first 2 pics were from 5 days ago, and the last 2 are from today.

wickywackyworld Reviewed by wickywackyworld on 03-22-2010. Nute Def? Heat Stress? Please Help! ton of pics Hi all, Well I've done the majority of my research here for my first grow and would like to thank all that contribute! I started with 8 hybrids (white widow, and pure power plant) and 1 indica (blue hash) and they've done extremely well but I'm noticing what looks like some sort of deficiency maybe... They are 85 days from seed and have been flowering for 33 days now. Now for their environment: homemade 3' x 4' area covered with panda film, Rating: 5

[martyrprojekt]

Looks like nutrient burn my friend. Flush...flush...flush. Then back to the nutes.

[moody420]

Looks like nutrient burn my friend. Flush...flush...flush. Then back to the nutes.

I agree with Marty....nute burn! No worries....you can fix it! :jointsmile:

[wickywackyworld]

awesome, i hope this nails it down. with nute burn do I have to flush or can I just use plain water for my next few waterings? if i do flush is 3x the pot size absolutely necessary? cuz that would be 3gallonpots * 3 = 9gallons * 10pots = 90 gallons.... thats a ****load.
can anyone else help to confirm or deny its really nute burn? i think that could be right though because I was thinking it was Mg so instead of giving only water last watering I gave a light dose of Mg along with a light dose of standard nutes... and 3 days later theyre lookin worse. Hopefully its just nute burn and I can get this straight within the next week or so.

Again thanks for the fast response and for the help

[busybee]

i'd say its nute burn too,you say you alternate water and nute/water,how often do you water?i water every other day,every 3rd water has nutes!

[wickywackyworld]

hi busybee, ive only been watering every 4-5 days so they get nutes every 8-10 days which i guess should be ok? or should i give them less water more often? i hope nute burn is my only problem, imma give them only water for my next 2-3 waterings and cross my fingers... this sux it's my first hitch since seed and its at a crucial time. oh well its a learning process lets just hope i find my problem, if after my next 2 waterings without nutes they arent lookin better, i'll prolly flush em thoroughly but hopefully they just got too many nutes... im prayin to the bud-goddess. thanks busybee

[Vancefish]

I'm on my first grow as well. I also nute burned once, but just before flower.

I actually DID flush thoroughly with RO. However then I was deficient. I couldn't save any of the already damaged leaves either. However it did recover once I got the soil nutes right again.

Since then I nute every third watering. Then plain PH set, the other two. No issues since! :thumbsup:

Good luck

[palerider7777]

i say nute burn.to help correct the guessing game you need a ph,ppm meter to test.

[bobojones]

I disagree with everyone else.

In your pictures there are no signs of nute burn. This is not nute burn. Nute burn affects all of the major leaves, not just the leaves in direct exposure to the light. Move your lights up and increase your circulation! You have light burn, period. This can be compounded by under-watering. Check your soil and water only when the pot is light in weight. If the soil sticks to your finger, it's wet. If not, water until 20% of the total water drains out of the bottom of the pot and check every 2-3 days.

[wickywackyworld]

I have a ph pen and a tds pen... so nothings guess work and as far as light stress, that makes the more sense than nute burn because nute burn should be worse away from the light because theyre not absorbing as much as the plants directly below the light. i think a deficiency or lockout could be the problem since the plants directly below the light are the ones absorbing the most nutes and so maybe thats why its showing the worst there... i really wish i could get this dialed in but according to the three forums that ive asked for help on, i have heat stress/light stress, nute burn, lockout, phosphorus def, Mg def, so who knows...

for the sake of massive buds are there more than 2 expert growers out there that can agree on my problem/s?

Maybe this will help, I hope

How long has this problem been going on? ~10 days
What STRAIN are you growing? white widow/pure power plant/blue hash
What was the establishing technique? (seed or clone?) seed
What is the age of your plants? 85 days
How long have they been in the soil mixture they are in now? 65 days
How Tall are the plants? ~4 feet
What PHASE (seedling, vegetative or flower) are the plants in? flowering
What Technique are you using? (SOG, SCROG etc) SOG
What size pots are you using? (Include how many subjects to pot) 3 gallon pots, 1 plant per pot
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) fox forest ocean farms 4 parts, to 1 part perlite
What Nutrient's are you using? advanced nutrients 3 part + their ferts
How much of each nutrient are you using with how much water? my input is less than 1000ppm *Knowing the brand is very helpful*
How often are you feeding? once every 7-10 days
If flowering, when did you switch over to using Bloom nutrients? 1st week of flowering
What order are you mixing your nutrients? (example: veg nutes 1st, bloom 2nd ect) i mix all my ferts and then add the grow micro bloom at 1-1-1 until ppm is ~1000
What is the TDS/EC/PPM of your nutrients used? ~1000
What is the pH of the "RUN-OFF"? 1100-1700 last watering
What method of pH test was administered? Using Strips? pH pen? ph pen
How often are you watering? 4-5 days
When was your last feeding and how often are you feeding? 3 days ago feeding every other watering
What size bulb are you using? 1000w hps
What is the distance to the canopy? 18-20 inches
What is your RH Factor? (Relative Humidity) 40-50%
What is the canopy temperature? 80
What is the Day/Night Temp? (Include fluctuation range) 80/70
What is the current Air Flow? (cfm etc.) closed environment but a large box fan is constantly blowing across the canopy
Tell us about your ventilation, intake exhaust and when its running and not running ? again closed env so its kept at temps by AC
Is the fan blowing directly at plants? oscillating under the canopy and box fan directly over the canopy sorta angled towards the light
Is the grow substrate constantly wet or moist? moist and i let the pot get light before next watering
Is your water HARD or SOFT? pretty soft ~60-70 ppm
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water? tap bubbled for at least 24 hrs
Are you using water from a water softener? nope
Has plant been recently pruned, cloned or pinched? nope
Have any pest chemicals been used? If so what and when? nope
Are plant's infected with pest's? nope

that should do it, hopefully the above questions help out.