how long for nutrient burn to show up in leaves?

suzyq71

Active Member
Ok Suz, you've done the flush......Now water next time it's READY to be watered with straight pHed water and feed at the next watering after that.
Now water once and then feed, then water, then feed and so on. your pics show that you caught it early. That's good and the plant should recover well.

Good luck
Thanks doc...:smile::smile: now that made sense..lol. have a great night.:peace:
 

Dazed-N-confused78

Active Member
Ok Suzyq, I have the problem as this.

WAY to much P, WAY to early!
Your Tiger Bloom is 2-8-4 and the Open Sesame is 5-45-19......The Tiger Bloom I would have begun say around week 3-4 of bloom and I would have NEVER have used the Open Sesame......What you have going on is P tox. NO amount of added N will fix this problem PERIOD (this is the most common problem I find around here and the most common answer too [the "add more N solution"]) !

You should just straight water the problem away by watering with straight water for a week. Then go back to the tiger bloom and run the plant out. You could also run something that has VERY little to no P for the week too as that will help reduce the P.
OR
As much as I HATE to say "flush it", this maybe the time to. Flush with 2x the water as the pot size. Let it dry to need it's next watering and water it with straight pHed water and resume feeding the next watering. This may save a small amount of time to resume the feeding.

This would be a good time to add a Silica to your feed mix as Si will help regulate the uptake of P.

HUGE P&K boosters like ALL of the FF solubles are NOT balanced for use with Cannabis. MANY big name nutrient companies have something like the N-P-K of the Open Sesame on their product lists. They tell you things like.
"X is formulated to create the most buds and increase flower size"(5-45-19).

"Y is created to building amazing buds and flowers. Our revolutionary micronutrient pack is designed to create unbelievable internal bud density, which means that plants create fat, dense, tightly-packed blossoms, and plenty of them. You’ll also see exceptionally brilliant color and a long, dazzling blooming season"(0-50-30)

"Z is a high-phosphorus fertilizer that won’t leave a salty residue or build up in the soil. Even better, we’ve included the micronutrient pack that FF is known for. It contains all the essential elements you need to support juicy fruit on compact, stocky plants.
"Z" creates juicy, robust fruit with essential oils and resins pumping out of stems and leaves. That means concentrated flavor and perfect texture"(9-50-10).

Now lets look at what this stuff is beside a WAY to high to high formulation of P for Cannabis growing.

The first one "slaps" the plant with a P value of 45 to do what can be done with a FAR less P value to obtain the same results.

I.E. When I flip a synthetic feed plant to flower. I simply add a quality P&K booster with a value of 0-7-5 at HALF the dose per gallon ONE TIME only to assist in the onset of flower, to my VEG nute.....OR flip to flower and use the bloom feed with certain companies products. HESI is one of those. I run NOTHING but Hesi for soil in ANY synthetic grow I may do (I grow 90+% water only organic).

Now why do I use HESI's bloom right at the flip and NOT wait till week 4 to start the bloom feed as I tell many to do around here?
SIMPLE, HESI is specifically FORMULATED to do that. The Hesi veg for soil (TNT) has an NPK of 2.8 - 2.2 - 3.1
The Bloom changes the NPK very little to 3.4 - 2.6 - 3.4. The REASON for this minor change is very simple. The rise in N is for the FAST burst of "stretch" growth in the first few weeks of Bloom. The SMALL rise of P is to HELP signal the plant that it's time to start setting flower points and it aids in that also (there is NO need to use massive amounts of P here as in reality, all your going to do is HURT the plants ability to "feed it's self" normally. This comes from the early loss of healthy green leaves that actually DO that work. Yellowing /dieing leaves do not photosynthesize). Now the small rise in the K value also helps the plants flip to flower here. I will add a K value of 3 or 0-0-3 to my feedings at this point and continue that out to the "wash" for the added density and expression of color it brings in with NO added plant problems. I do add a P&K booster made by HESI at week 4. I use it full strength at every other feeding till wash.

This is how a CANNABIS plant SHOULD be feed at early flower. If you do NOT use a synthetic nutrient balanced out this way (for this exact purpose), I tell people to simply use their VEG formula till the start of week 4. At that point is when you should start your higher P bloom foods (things like a P value over 4). This IS the ONLY way to avoid the "yellow out" conditions of high P bloom food "abuse" !! And this is TRUE for all of those super high P&K boosters.

Now as for the claims of the second product on the list. The boost of P by 5 actually makes NO sense here as all the real work of the claim is the 11 point rise in the K value.....AND, you really don't need that either (remember how I add the K above?)!!!

The claims of the third product are explained by the "micronutrient" changes they make (and they don't tell you what is actually doing what. Nor do they actually list what they changed/added and by how much). They have added Mg and S along with adding some carbohydrates to do what they list as the "claims". I can do all that from the third product by using a home made product of my own at less then 3 dollars a gallon to make !!! I simply do NOT understand the use of the super high P&K levels and the claims they make in relation to what WE grow.

This stuff used with prudence, on certain fruits and vegetables WILL help them produce more as the maker claims. But the thing is, we aren't smoking tomatoes or eggplant or beans or apples or cherries, etc, etc.

Now you have real information as how to grow with good success. USE it and you will be happy for a long time.

Now, as to your actual posted question. It takes 3-5 days for any adjustment of nutrition to show up in hydro and 5-7 days for soil.
Please note that ONLY an N def will show leaf "repair or improvement"
The best thing is to look at the new growth for the "fix" to have worked.
Not sure if anyone is on this old thread or not. But i mixed my first week of veg nutes and it came out with a ppm of around 2200. My plants look fine and there is a ton of new growth and roots shooting out of my rockwool. Im doing flood and drain. The leaves are curling. Is this a sign of underwatering? I only flood during lights on. Would that be causing the underwatering? I have been told to flood when lights are out too.
 

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twentyeight.threefive

Well-Known Member
Not sure if anyone is on this old thread or not. But i mixed my first week of veg nutes and it came out with a ppm of around 2200. My plants look fine and there is a ton of new growth and roots shooting out of my rockwool. Im doing flood and drain. The leaves are curling. Is this a sign of underwatering? I only flood during lights on. Would that be causing the underwatering? I have been told to flood when lights are out too.
You should really create a NEW thread for your issues. 2200 ppm? That's going to kill those small plants.
 

Dazed-N-confused78

Active Member
You should really create a NEW thread for your issues. 2200 ppm? That's going to kill those small plants.
They have had those nutes all week so far. And not dead. But as you can see that wasn't my question. My question was by the look of the leaves does it look like i am overwatering? And also why start a new thread? You tried to answer my question.
 

twentyeight.threefive

Well-Known Member
They have had those nutes all week so far. And not dead. But as you can see that wasn't my question. My question was by the look of the leaves does it look like i am overwatering? And also why start a new thread? You tried to answer my question.
Why create a new thread? Because people clicking on the thread for the first time start at the beginning. Usually people read through from the start, they don't just read the last response hoping to help you out. Overall it's considered rude.

You're feeding your plants at 4.4EC and you're wondering why you are having issues. But hey you know better than everyone, so good luck.
 

Herb & Suds

Well-Known Member
They have had those nutes all week so far. And not dead. But as you can see that wasn't my question. My question was by the look of the leaves does it look like i am overwatering? And also why start a new thread? You tried to answer my question.
It is called thread jacking and just because you are already at that PPM it doesn't mean you aren't headed for a disaster
 

Dazed-N-confused78

Active Member
Why create a new thread? Because people clicking on the thread for the first time start at the beginning. Usually people read through from the start, they don't just read the last response hoping to help you out. Overall it's considered rude.

You're feeding your plants at 4.4EC and you're wondering why you are having issues. But hey you know better than everyone, so good luck.
My plants are growing. Im off camping and not even checking on them. Obviously the nutes aren't the issue. I was asking about if i was underwatering. But you can only see what you can see. I think it was you i had a problem with before. Do you drink? Are you the resident know it all? Or is this why i hear bad things about this Rollitup forum? Come on and answer these questions. Smdh
 

Herb & Suds

Well-Known Member
My plants are growing. Im off camping and not even checking on them. Obviously the nutes aren't the issue. I was asking about if i was underwatering. But you can only see what you can see. I think it was you i had a problem with before. Do you drink? Are you the resident know it all? Or is this why i hear bad things about this Rollitup forum? Come on and answer these questions. Smdh
Maybe the people who you hear bad things from can fix your issues?
Cause we don't have too
 

Dazed-N-confused78

Active Member
Nobody on any other threads i post on are like this. Ive seen some negative comments about rollitup. Matbe you all should do some revamping of your forum. Just saying. And im pretty sure i just jacked somebodys thread from 2014. Oh no. Someone answered the op's question anyways. He said thanks. And that was it. No other posts until mine and your gonna act like i stole something Herb & Suds. Maybe lees suds more herb would be better. This is what is wrong with our country. Libs like ya'll. Have a great day.
 

Dazed-N-confused78

Active Member
Maybe the people who you hear bad things from can fix your issues?
Cause we don't have too
My plants grew new roots and new leaves over this week that they have had thos nute at 2200 ppm. So tell me what i an doing wrong. Green. No discoloration. Just the leaves curling a little bit.
 

Herb & Suds

Well-Known Member
Nobody on any other threads i post on are like this. Ive seen some negative comments about rollitup. Matbe you all should do some revamping of your forum. Just saying. And im pretty sure i just jacked somebodys thread from 2014. Oh no. Someone answered the op's question anyways. He said thanks. And that was it. No other posts until mine and your gonna act like i stole something Herb & Suds. Maybe lees suds more herb would be better. This is what is wrong with our country. Libs like ya'll. Have a great day.
Actually it is your type of ignorance that has caused the majority of Americans to walk away from the GQP
but whatever helps you live with yourself

The leaf issue will come into play in early flower enjoy
 

twentyeight.threefive

Well-Known Member
My plants are growing. Im off camping and not even checking on them. Obviously the nutes aren't the issue. I was asking about if i was underwatering. But you can only see what you can see. I think it was you i had a problem with before. Do you drink? Are you the resident know it all? Or is this why i hear bad things about this Rollitup forum? Come on and answer these questions. Smdh
Obviously the nutes aren't the issue. Since you have it all figured out, why are you posting looking for help?

No you didn't have a problem with me before, maybe you did who knows. I give straight up answers, usually the people who have issues with the answers are the ones who refuse to acknowledge they are wrong. Like when you said you were using 6 inch rockwell cubes when they clearly weren't. Like feeding at 4.4 EC and refusing to acknowledge that's bad. But it's your grow, you can do whatever you want with it. I was just trying to be helpful. You obviously know more than everyone else so apparently you don't need it.
 

Dazed-N-confused78

Active Member
Obviously the nutes aren't the issue. Since you have it all figured out, why are you posting looking for help?

No you didn't have a problem with me before, maybe you did who knows. I give straight up answers, usually the people who have issues with the answers are the ones who refuse to acknowledge they are wrong. Like when you said you were using 6 inch rockwell cubes when they clearly weren't. Like feeding at 4.4 EC and refusing to acknowledge that's bad. But it's your grow, you can do whatever you want with it. I was just trying to be helpful. You obviously know more than everyone else so apparently you don't need it.
Dude. It was you! I know those weren't 6 inch rockwool. You refuse to see that every time i tell you that. They were 1 1/2 inch starter cubes. Was getting ready to put them in the 6's. Maybe i typed out what i was saying wrong. I can't remember. But i clearly know the difference between 1 1/2 and 6 inches. Have a good day. I knew better than to ask any questions here. Anyway. Thanks for the help
 

twentyeight.threefive

Well-Known Member
Dude. It was you! I know those weren't 6 inch rockwool. You refuse to see that every time i tell you that. They were 1 1/2 inch starter cubes. Was getting ready to put them in the 6's. Maybe i typed out what i was saying wrong. I can't remember. But i clearly know the difference between 1 1/2 and 6 inches. Have a good day. I knew better than to ask any questions here. Anyway. Thanks for the help
Dude. It wasn't me! I commented after the fact. You clearly said they were 6 inch cubes and you argued with the other guy that said they weren't. You may have meant something else but it's not what you typed. What you type on here is the only thing we can go by, we don't read minds.

I gave you a clear answer on why your plants are having issues. What you do with that is up to you. Good luck man.
 

Dr. Who

Well-Known Member
Not sure if anyone is on this old thread or not. But i mixed my first week of veg nutes and it came out with a ppm of around 2200. My plants look fine and there is a ton of new growth and roots shooting out of my rockwool. Im doing flood and drain. The leaves are curling. Is this a sign of underwatering? I only flood during lights on. Would that be causing the underwatering? I have been told to flood when lights are out too.
Rockwool and flood and drain.
5 - 15 min floods a lights on cycle.
1 at lights on and 1 right before or right at lights out - carries the plant over to the next lights on.

After looking at the plant pic's.
The "canoeing" of the leaves indicates either higher heat or lower RH then optimal.

Now then. As far as nutrient strength... Your going to have over feeding issues down the road.
I don't give a fuck if they have grown that way for a week or 10 days! It'll take time to work up.
Not too much longer either.

I've been growing this plant for over 48 YEARS!
 
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