Plant Moisture Stress - Symptoms and Solutions

i81two said:

From what Ive read... I should dig a big hole and mix the native soil with... well there is alot of different opinion on that part. I am trying to figure out what it is that i should mix in. Any suggestions ?

Click to expand...

If it's well drained mix some compost in. Being that soil profiles/structure can be a million different types, it pays to know what you have. You could always upcan to a 3 gallon pot from a 1 gallon pot, dig a 3" hole in the ground, drop the pot in and the roots will grow thru the drainholes into the native soil, plus get the moisture and salts you added to the pot.

oakgrowth1 said:

DID NOT REALIZE MY MIRACLE GROW PERLITE & PEAT MOSS WAS ENRICHED WITH MIRACLE GROW CRAP. I AM SEEING THE COPPER COLORED NECROTIC SPOTS ON MY FAN LEAVES. & I USED FISH FERTALIZER (1TABLESPOON PER GALLON) TO WATER TWICE PLUS WORM CASTING TEA. THIS MAKES SENSE. I AM USING DISTILLED WATER FOR THE TIME BEING AND WILL "FLUSH" WITH IT NEXT WATERING. THANK YOU

Click to expand...

Amount and frequency of app depends on plant needs, rate of growth.

Thanks for the advice.

First of all ..Big Ups to Uncle Ben! Ive been browsing this thread and was pleased to see that someone takes the time to help out the less informed.
I have done alot of reading about cultivation and just recently kicked myself in the ass to start.
Your moisture stress chart is very helpful but i didnt see anything about ph levels and how they can also affect the growth and look of the plant. I still havent figured out why my ph levels rise so rapidly in my res. so i am forced to hand feed with solutions mixed in 1 gal. containers.
Im growing in rockwool and hydroton grow rocks. Presoaked the rockwool to desired ph level before use.
tested the run off after a fresh batch of water and still high.
Causes anyone?
....I also have owned the book written by Mel Frank for 10 yrs now and have read it cover to cover many times.

Hey Uncle Ben

You may already know about this but in case you didn't,, thought I would post it here as I found it in one of my searches

your original posting (says 2002) of this same thread on overgrow has been re-posted, actually the entire grow faq from overgrow has been replicated at another forum, check the upper left corner

http://www.stonerforums.com/lounge/growfaq/1331.html

thought you might enjoy a blast from the past

There is UB smack all over the web.

unsure if this will even get a reply but can someone look at these pics? https://www.rollitup.org/members/friscobeauty-albums-purple-kush-grow-picture114229-overfertilized.jpeg
i'm doing a coco/hydroton grow with Purple Kush clones, and I have a feeling they're over fert and overwatered, so what i did was i flushed them with 6.0 pH water at 10-50ppm for a couple days until the runoff water read 650ppm and 6.0pH.... anyone know specifics about pH, PPM, etc that PK likes/thrives at?
5x6x12 room, 75F day, 60F night, 40% humidity, using sensi grow @650 ppm (lowered from about 1300) 2x per day watering by hand; also using calmag, liquid karma, and protekt at each water. 18/6 light cycle they are currently 13 days old (bought clones at 3 weeks) any other info needed let me know...

riddleme said:

Hey Uncle Ben

You may already know about this but in case you didn't,, thought I would post it here as I found it in one of my searches

your original posting (says 2002) of this same thread on overgrow has been re-posted, actually the entire grow faq from overgrow has been replicated at another forum, check the upper left corner

http://www.stonerforums.com/lounge/growfaq/1331.html

thought you might enjoy a blast from the past

Click to expand...

Thanks. Yep, it's from the OG FAQ.

friscobeauty said:

unsure if this will even get a reply but can someone look at these pics? https://www.rollitup.org/members/friscobeauty-albums-purple-kush-grow-picture114229-overfertilized.jpeg
i'm doing a coco/hydroton grow .........................................................................2x per day watering by hand; ..

Click to expand...

If you said you watered every two days, I'd have said you burned it with salts.

But, watering twice a day....it's drowning. Let it dry out for a few days, then lift the pot up a few times to get to know how much it weighs dry. Water it.......then don't water again until the pot is light, like when it was dry.

canadiancracker said:

can you help check these out

thanks in advance,

i think it might be over watering or maybe too much light.

thanks in advance, great thread by the way...

Click to expand...

The first plant in the one pot looks like it could use a bit more watering. Maybe step it up by 12-24 hours from the cycle you have it one now. The other ones look like you have over watered them-from the color.

The first plant will be fine, great in fact. The others can make it too, because they look like very strongly rooted plants. Step back the watering by 12-24 hours from the cycle they are on now.

That's what my newbie eyes tell me. Remember this is newbie advice.... besides, this is advice far after the fact that these plants have grown, I think

i really appreciate the replies... i've cut down watering, and the plants look better. i think it was the problem, as some green algae started to grow on the rockwool cubes originally used for rooting the clones. i just planted them in with the coco. theres 40 of them, so picking each one up to test the moisture would be a bitch, so i'm thinking of getting a drip system..... I read somewhere that 6 times each day, 2 minutes each time, is a good watering schedule.... i'm bumping up the nutes to 800 this last veg week then going into flower. hopefully they will be bounced back and eager to grow once i get there! Should i keep raising the nutes a little at a time in PPM even when i switch to flowering nutes or should i go back down to like 600 and then go up from there??.... for now, would testing the feel of the top of the coco and rockwool by hand be ok to check for moisture? i've noticed they stay very damp, especially because they were planted in coco that was packed down too much. will this affect root growth to the point where it affects yield? that's all for now... i can't remember any other questions i have but i'm sure i'll have more its just my second grow so i have way more to figure out!

friscobeauty said:

i really appreciate the replies... i've cut down watering, and the plants look better. i think it was the problem, as some green algae started to grow on the rockwool cubes originally used for rooting the clones. i just planted them in with the coco. theres 40 of them, so picking each one up to test the moisture would be a bitch, so i'm thinking of getting a drip system..... I read somewhere that 6 times each day, 2 minutes each time, is a good watering schedule.... i'm bumping up the nutes to 800 this last veg week then going into flower. hopefully they will be bounced back and eager to grow once i get there! Should i keep raising the nutes a little at a time in PPM even when i switch to flowering nutes or should i go back down to like 600 and then go up from there??.... for now, would testing the feel of the top of the coco and rockwool by hand be ok to check for moisture? i've noticed they stay very damp, especially because they were planted in coco that was packed down too much. will this affect root growth to the point where it affects yield? that's all for now... i can't remember any other questions i have but i'm sure i'll have more its just my second grow so i have way more to figure out!

Click to expand...

You're doomed. If you need someone to advise you when to water and how much to feed, you'll fail. This is YOUR garden, your plants will tell you if they need food and when to water them, learn to read your plants and take someone's advise with a grain of salt - it isn't their garden and they are not there to watch your day to day activities.

Gotta ask, why do you want to complicate things by going with rockwool, drip, etc.? Unless drip is done right, your plants will be subjected to uneven watering and other issues. Soil is much more forgiving. What is the NPK and micro values of your foods?

BTW, welcome to RIU.

UB

plz help i am desperate whats wront with these plant 3 plant 3 different problems . lucky me .

aye man take a look at my pictures tell me what u think.. the link is my signature thing below

+rep this thread is awsome

Abysmal Darkenin said:

plz help i am desperate whats wront with these plant 3 plant 3 different problems . lucky me .

Click to expand...

Nope.. all the same problem, expressed slightly differently or at different stages of progression.

Too much P and K at a growth phase where N is in the greatest demand. One thing for certain-sure - it isn't moisture stress one way or another. That curl in the top leaves is classic phosphorous overfeed, or overfeeding in general.

Need more info on what you're feeding.

I really couldn't tell anything from your last pic. Try re-shooting it under natural or incandescent light.

Dose any one know if I put plastic on ground 3 gallon buckets on top with foxfarm ocean floor soil and light warrior soil mixed... with a window screen type mesh on all 4 sides 4 to 5 feet tall with a emergency plastic see thru cover for heavy rains will my lil green patch be almost bug free>? Even if I spray a week before I start? the entire area? Also I wont have to worry about bud rot as long as the buds are not soaked from rain correct? Or do humidity levels play a role int hat too? Sry for posting off topic but this post is so popular. thanks so much sry for throwing off topic (

Uncle Ben said:

You're doomed. If you need someone to advise you when to water and how much to feed, you'll fail. This is YOUR garden, your plants will tell you if they need food and when to water them, learn to read your plants and take someone's advise with a grain of salt - it isn't their garden and they are not there to watch your day to day activities.

Gotta ask, why do you want to complicate things by going with rockwool, drip, etc.? Unless drip is done right, your plants will be subjected to uneven watering and other issues. Soil is much more forgiving. What is the NPK and micro values of your foods?

BTW, welcome to RIU.

UB

Click to expand...

I was interested in trying a new medium, and did a first grow in soil. I was able to spend more money on it, and the idea was on a general idea of a yield, and i felt that a hydro medium might be a way to boost the possibility of the max yield. We've got a drip system in the works so watering should be figured out, at least the evenness of it. its our first day of flowering... well soon.. within a couple days. now the argument is topping/fiming or lollipopping.... anyone have any recommendations?

On a side note: I don't know if you were being sarcastic about me being doomed, but I didn't mean i need someone to tell me every single step. Avoiding catastrophe by following general guidelines is usually a good way to start, so feeling for as much information as possible and comparing it and then applying is what i'm interested in. If i water the plants like i said, and it seems like they need more, i'm not going to bite my fingernails until they all die, i'm going to adjust accordingly.... So I wouldn't say I'm doomed.

hey guys im new to the game but one of my ak 47's are getting black tips on the leaf 's. does anyone know whats goin on?

Hey UB sorry to be a bother but my plants seem to be ready for bed (drooping) everyday about an hour before lights out even as I stage a changing of the seasons in my light schedule (30 mins more dark a day, is this ok, and I know its more work than I need to do but I wanted to try it) and are perfectly upright and straight in the morn and all day.