Still having unknown plant problemsa

[darbolah]

ok il get that photo and my run off ph tonight, that ph is the ph of the nute solution. Iv just changed it to full strenght nutes and ph of 5.6-5.7 as that is supposed to help with P lockout.

What do you think ?

[Weedhound]

Well I was just reading up on hempys.....I guess that's what you have going there but they were saying 6.2 which really isn't far off from what you are. Maybe try 6.0 for a comprimise?

Just don't know enough about growing in perlite to be sure .....sorry i'm not more help.

[darbolah]

do you know what might be causing the problems WH.

Thanks for you help

[darbolah]

just hand watered, first of 3. Watering using full strength canna nutes and a finished product of 5.9 pH. The runoff is around 6.7, dunno is that is any help but iv also included some more photos as the problem is getting worse

Any help would be great

[darbolah]

OMG doesnt anyone know what the problem is, this is just the third thread i have done to help this plant and to no avail

Should i just scrap it or what ? If i cut it up into clones would any of them survive ?

PLEASE ELP ME

[daihashi]

OMG doesnt anyone know what the problem is, this is just the third thread i have done to help this plant and to no avail


PLEASE ELP ME

You've sort've answered the question yourself.

-soilless
-perlite

You're growing in straight perlite. I'm not positive this is a soilless medium, due to it's lack of ability to retain moisture I feel perlite really delves into borderline hydro. There is nothing for the roots to truely hang on to. Have you ever lined the bottom of a soil filled pot with perlite and then transplant? If you have you'll see that perlite just falls off or is very easily removed by any gentle movement during the transplant.

This could make it very easy to shock the root system.

-Hand watered 3 times per day (when lights are on

Hand water 3 times a day when the lights are on, but the root system remains dry when the lights are off? That's a long dry period considering perlite doesn't retain moisture. Water sort've just rolls off of it. Also 3 times a day during 12 hours (lights on. That means there is about 4 hours of the plant being dry between waterings. The root system being dry for that long could be problematic, but I don't know as Ive never grown and probably wouldn't grow in straight perlite.

-Tap water
-pH 6.4
-Canna Vega a+b 1/3 strenght
-In every watering ferts are added

You're in a soiless medium , or really what I consider almost hydro (think of hydrotron balls). Your ph is rather high considering all this. In a soiless medium you want a ph of 5.8 -6.2 and I think for hydro it's 5.5 - 6.0. Weedhound would know the hydro ph for sure.

Also you're watering every watering with ferts. Which is fine if you were treating this as a hydro grow, but in a soil and soilles grow you want to water with plain water every other watering. This sort've helps wash away salts in the medium.

If you look at your leaves they look like they're burned a bit from too much nutes.

This is a soiless grow but you're in the wrong ph range and you feed the plants as if they were in a hydro setup instead. Might want to rethink your plan of attack on this grow because currently it appears you're trying to combine two different methods that aren't similar in any way.

-400w HPS with cooltube - about 30-40cms away from light
-between 84-88F (Lights on) 74-76F (Lights off)
-Humidity unknown - i have very good ventilation
-I have 30cm bathroom fan intake and high power exhaust running off my cooltube.

400 watt hps... about 12-15" away from the canopy top. This is not bad but your temps are not great. 84-88 degrees? That's pretty warm You want to grow between 70-78, not to say these plants can't survive in these conditions but problems can occur. If you go back and look at some of your pictures you can see the plants look very dry and some of the problem areas have the leave edges and leaf tips curling upwards. Classic sign of heat stress.

Humidity is very important. Good ventilation is not the issue here. The issue is that you want the air neither too Arid nor too humid. Get a cheap hygrometer in there. You want to try to keep the humidity between 30-60% and ideally between 40-50%. I got my thermometer/hygrometer combo for $9.95

If you're saying you have an intake on your cool tube as well as an exhaust then you need to make sure that they're equalized in pressure or the intake side is slightly stronger (the stronger intake will make up for the restriction the exhaust has pulling through the cool tube.). The reason being is that if your intake fan is flowing less air than your exhaust then it become a restriction and is not helping/will not cool efficiently. you should remove this or add a fan that can match your exhaust fan. Try running it without the intake fan. I bet your temps drop about 5 degrees or so. Make sure there are as few restrictions as possible on your cooltube/ducting.

just hand watered, first of 3. Watering using full strength canna nutes and a finished product of 5.9 pH. The runoff is around 6.7, dunno is that is any help but iv also included some more photos as the problem is getting worse

Any help would be great

Don't you think if you're seeing problems you should back off a bit to try to determine what the issue is. If you did have a nutrient lockout then feeding it more of those nutes is not going to help, it will just make the problems worse.

your ph is rising.. again probably leading to more lockout and leading to your problem is getting worse as you stated.

Also in one of your pics it looks like you have 2 plants in 1 pot? Do you not think that maybe the roots are rootbound now in that pot or that maybe they are fighting for nutes? Maybe you have it divided up some how. I really can't tell from the pictures.

OMG doesnt anyone know what the problem is, this is just the third thread i have done to help this plant and to no avail

Should i just scrap it or what ? If i cut it up into clones would any of them survive ?

PLEASE ELP ME

Yes.. the problem is everything I stated above.

Start with correcting your PH issue and attempting to check for the plant being root bound or the roots being tangled up ito each other, but be gentle.. don't go prying anything apart.

Your pictures exhibit multiple problems. General causes for multiple problems are PH lock outs (your ph is out of range for the medium you're growing in.. I could be wrong but this is *my* opiniion) and rootbound (Pretty sure I saw a pic with 2 plants in 1 pot. I can't say anything beyond this but if those plants are not seperated by some means then I would say these plants are probably rootbound as well. Which oddly enough can contribute to ph problems.)

Start with ph and rootbound issues and then work your way with the rest of the stuff I listed.

Good luck:thumbsup:

[Weedhound]

Ok....Daihashi makes some very good points here.....rootbound is part of the problem I agree.

I went and read up somewhat on these hempys which is what I believe you are growing. These things are pretty new Darbolah so stop getting mad because the rest of us don't know how to do them or troubleshoot them. YOU'RE the one growing in them. :wtf:

Without in ANY way pretending to know about hempys.....from what I read you should not have to worry about ph issues in these....but for those who do it should be 6.2. So ph is not SUPPOSED to be a problem here. But just because someone says it shouldn't be a problem does not make it so in real life so.....

One thing that kept being mentioned was that hempys need a lot of nutes......so perhaps undernuting IS an issue here......or could be related to a problem like the plants being rootbound......as Daihashi mentioned. I don't know if they are or not......but it's certainly possible as well. Or both. OR all three.

So no.....I don't know whats wrong with your plants. It's also possible they need to be flushed.....(again a possible rootbound related issue) but quite honestly I don't know if they do or not......so I'd put it in the list potential things to do to solve the problem.

I personally would probably flush until the ph came out the bottom at 6.2. Then I'd consider a larger container and restudy your nute program. I can't even begin to tell you how to nute a hempy bucket.

[Weedhound]

I'd also think about flushing with H202 water ph'd at 6.2.....(Hydrogen peroxide 3% use 2 tsp gallon) and consider a zyme product but again.....I don't know about enough about these hempys to really say.

[daihashi]

There's a pretty good thread about the hempy bucket on homegrown420 but I don't know if I can post the link here or not.

It's not really for troubleshooting but it provides good insight on just general care and maintenance etc etc. I feel it could be beneficial here.

If a mod gives me the go ahead I'll post the link. :thumbsup:

[Weedhound]

I do think that's what's needed here......hempy info...:thumbsup: ..Darbolah one earlier question....can you measure ppms? If so....measure them in your runoff.....if you have a few hundred ppms in the runoff you need to flush and that's regardless of your medium.