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OfflineMr. Hands
Registered: 01/18/09
Posts: 89
Last seen: 13 years, 3 months
What does it mean when the ends of your leaves are a little brown and curled?
    #401485 - 04/14/10 07:02 PM (13 years, 11 months ago)

???

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OfflineDungenessDank
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #401545 - 04/14/10 08:43 PM (13 years, 11 months ago)

Means you done fucked up.

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InvisibleHarry_Ba11sachM
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: DungenessDank]
    #401552 - 04/14/10 08:51 PM (13 years, 11 months ago)

:lol:


Can we get a little more info on your setup? Sounds like possibly nutrient burn, but it could be 1000 different things without knowing.


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OfflineTomCollins


Registered: 10/06/09
Posts: 2,943
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Harry_Ba11sach]
    #401917 - 04/15/10 12:04 PM (13 years, 11 months ago)

https://www.growery.org/forums/showflat.php/Number/53005 Fill one of these forms out and post a picture if you can. It will make diagnosis lightning fast.


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andyistic said:
Ok so let me bring you idiots up to speed.
The admins are tired of this shitfest being made the joke of the weed community on the Internet.

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OfflineMr. Hands
Registered: 01/18/09
Posts: 89
Last seen: 13 years, 3 months
Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: TomCollins]
    #410448 - 05/02/10 04:09 PM (13 years, 10 months ago)

Ok, my fruits are definately not reaching their full potential.  The problem seems to start with a mild browning at the end of the leaves and the fruits are stringy and not dense.  I get six ounces of dried material that looks unimpressive off of a 600 watt H.P.S.


1. Are you growing from seed or clones?

Clones.

2. How old are your plants?

About eight weeks.

3. How tall are your plants?

About 18 inches.

4. What type of hydro system are you using?

Ebb and flow.

5. What brand/type of nutrients are you using?

Flora Nova.

6. What is the Ph of your nutrient solution?

5.8


7. What is the PPM/EC of your tap water?

About 250 ppm.

8. What is the PPM/EC of your nutrient solution?

About 1450 ppm.

9. What is the temperature of your nutrient solution?

About 75 degrees.

10. Does your PPM/EC show a rise or fall when you do your daily PPM check?

I've seen it do both.

11. Does your pH show a rise or fall when you do your daily check?

Neither.  It is a very expensive and precise meter that sticks on one reading.

12. Do you foliar feed or spray your plants with anything?

No.

13. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights")

600 watt H.P.S. with expensive Son Agro "full-spectrum" bulb.

14. How close are your lights to the plants?

About six inches.  My hood is air-cooled by being vented.

15. What size is your grow space in square feet?

My table is 36 in. x 36 in.  My space is an entire room about 10 x 15 feet.


16. What is the temperature and humidity in your grow space?

Varies.  Usually about 80.  Humidity the same as outside (temperate deciduous climate).

17. Have you noticed any insect activity in your grow space?

No.

18. How much experience do you have growing?

A decent amount.

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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #410865 - 05/03/10 06:04 AM (13 years, 10 months ago)

Quote:

7. What is the PPM/EC of your tap water?

About 250 ppm.

8. What is the PPM/EC of your nutrient solution?

About 1450 ppm.






Your water is super hard, most of that 250ppm will be in the form of Calcium then to run another 1200ppm seems like A LOT. Using synthetic hydro nutes I typically don't want to go over 1300ppm regardless of strain and often times I cut it down to 1000-1150ppm this is using RO or distilled water with ~10ppm so I know exactly what's in my mix. With any strain I'd be very careful exceeding 1300ppm with Floranova when knowing exactly what my plants are getting.

Do you have pictures ?


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OfflineMr. Hands
Registered: 01/18/09
Posts: 89
Last seen: 13 years, 3 months
Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: captain.koons]
    #412044 - 05/04/10 08:35 PM (13 years, 10 months ago)

Quote:

captain.koons said:
Do you have pictures ?




No, I do not have a digital camera.

I was very careful not to go over 1,600 ppm with this batch (whereas I have not been so nazi-like on my last batches).  So, you are saying that if I carefully add water and nutrients throughout the fruiting cycle and keep my ppm at about 1,100 then things will end up better?  I am set to harvest in three days and this batch is a lost cause.  The stringy buds (if you can call them that) are worthless. 

This is utterly frustrating.  I don't think plants like me.  :shrug:  I think I'm just going to go back to soil.  It requires nothing except watering them once a week.

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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #412052 - 05/04/10 08:46 PM (13 years, 10 months ago)

1450-1600 PPM is a lot especially when you don't know what exactly is found in your water. A lot of your tap water's 250ppm is calcium which is A LOT I'd for sure want to use a hardwater formula if my tap water was that hard. I actually would try to do anything to lower the PPM of my tap water, perhaps a brita, a column of charcoal, or anything really.

I try to stick to ~1300ppm or 2.0 EC I believe 1300ppm at the .7 conversion is 2.3 EC 1100 being over 2.0 this is also knowing my water source which varies, I've use tap water, RO, Distilled but I make sure the PPMs are low.


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TROLLS NEED LOVE TOO!

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OfflineMr. Hands
Registered: 01/18/09
Posts: 89
Last seen: 13 years, 3 months
Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: captain.koons]
    #412544 - 05/05/10 02:30 PM (13 years, 10 months ago)

Well, I just ppm'ed my tap water and I got 350 this time.  It's official...I have super hard water.

I think I am going to have to haul in distilled and R.O.'ed water.  It will be a pain in the ass, but I can't keep throwing money down the toilet with nutes and rockwool and getting nothing in return.  It is going to look shady bringing in big blue Culligan containers and distilled water all of the time, but it looks like that is what I am going to have to do.

So, just to make sure: if I have low ppm water, add nutes until my solution is at about 1100 ppm, and have a PH of 5.8 will I FINALLY get a decent yield?  Is there anything else I should know or do?  Will I have to add calcium and magnesium as additives to my resevoir for example?

Grrrrr!!!  :grin:


P.S.  I have a 40 gallon resevoir.  Would it be better to do 10 gallons of my tap water (which has tons of minerals in it at 350 ppm) and then the other 30 gallons of R.O.'ed water and distilled water?  That way my ppm's would probably be about 100 and I wouldn't have to add any minerals and such...?

Edited by Mr. Hands (05/05/10 02:43 PM)

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InvisibleAmnesiac


Registered: 10/13/08
Posts: 102
Loc: Under the sea
Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #412688 - 05/05/10 08:02 PM (13 years, 10 months ago)

It sounds like you should invest in an RO filter and make the water yourself. It would pay for itself after you had to buy bottled water for a 40 gallon res a few times.

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OfflineMr. Hands
Registered: 01/18/09
Posts: 89
Last seen: 13 years, 3 months
Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Amnesiac]
    #412721 - 05/05/10 09:09 PM (13 years, 10 months ago)

I've heard that R.O. filters take a long time to filter just one gallon.  I'd rather buy some Culligan drinking water and a bunch of gallons of distilled water than sit there all day waiting for one of those filters to spit out the appropriate amount of water.

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OfflineDieselB
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #412784 - 05/05/10 10:03 PM (13 years, 10 months ago)

A good RO system doesn't take much time at all to filter a gallon. I think you are thinking of the filter pitchers?


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If you ain't smokin' dro, you're smokin' reggie. :shrug:

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OfflineMr. Hands
Registered: 01/18/09
Posts: 89
Last seen: 13 years, 3 months
Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: DieselB]
    #412882 - 05/06/10 05:24 AM (13 years, 10 months ago)

Quote:

DieselB said:
A good RO system doesn't take much time at all to filter a gallon. I think you are thinking of the filter pitchers?




Well, keep in mind I have a 40 gallon resevoir.  How many hours of screwing around will it take to get 40 gallons of water?  I think I'd rather just buy jugs of water and save time.

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InvisibleHarry_Ba11sachM
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #412885 - 05/06/10 06:19 AM (13 years, 10 months ago)

I have a 240 GPD RO system. That means it could fill your entire res in just 2 hours. Honestly not too bad IMO, just turn it on, set an alarm for an hour and 55 minutes and then go watch TV or something


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OfflineMr. Hands
Registered: 01/18/09
Posts: 89
Last seen: 13 years, 3 months
Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Harry_Ba11sach]
    #413017 - 05/06/10 11:34 AM (13 years, 10 months ago)

Quick search of a 240 gallon per day R.O. machine - $940.

Yikes.

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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #413089 - 05/06/10 02:18 PM (13 years, 10 months ago)

I've got two 750's.


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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #413092 - 05/06/10 02:23 PM (13 years, 10 months ago)

Quote:

Mr. Hands said:So, just to make sure: if I have low ppm water, add nutes until my solution is at about 1100 ppm

You can exceed this, I go anywhere from 1100-1300 and sometimes higher if the strain is still hungry which isn't often. I used to slam my plants until I got signs of burn and back off but now I feed so that my plants look healthy and adjust from there.


, and have a PH of 5.8 will I FINALLY get a decent yield?  Is there anything else I should know or do?  Will I have to add calcium and magnesium as additives to my resevoir for example?

I use a pH of 5.5 and I don't think you will need cal/mag but it depends on the strain and your nutes. I run GH flora and if you need more calcium you just add a bit more micro and it works great.

As for yields, of course something else could go wrong but you seem to have a handle on things and it's just your tapwater that is the problem... but I don't know as you don't have pictures. I can say for sure if you fix your water and have lower ppms you're going to be on the right track.







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InvisibleHarry_Ba11sachM
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #413111 - 05/06/10 03:02 PM (13 years, 10 months ago)

Quote:

Mr. Hands said:
Quick search of a 240 gallon per day R.O. machine - $940.

Yikes.





You didn't look very hard

http://www.rvfgardensupply.com/cgi/display.cgi?item_num=728820


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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: captain.koons]
    #413127 - 05/06/10 03:32 PM (13 years, 10 months ago)

also if you're bringing in your water by jugs you might want to look into top offs and seriously consider going to gh flora as it's easier to adjust your nutrient mix.

top offs are to save water and nutrients, essentially if your goal was 1300ppm when your res reaches 1000 ppm you would add back nutrients to reach 1300ppm which would depend on how much water is displaced in your reservoir. If you save the distilled water from your AC and dehumidifier this can make for a very efficient grow.


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Invisibleboomsaway
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: captain.koons]
    #413695 - 05/07/10 10:24 PM (13 years, 10 months ago)

i dunno koons, when you top up like that for too long your water gets really toxic
the chelates that most of your minerals are attached to dont get absorbed by the plant, eventually the concentration of EDTA and such gets too high.

ive been using a little PUR faucet filter lately and it seems to work,
each one does 100gals and you can get 3 of them for like $40
i havent been using a PPM meter tho, but my tap water comes in around 300ppm, at least when i checked it 3 months ago...

Lugging water like that is really time consuming and back breaking work IMO.

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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: boomsaway]
    #413727 - 05/08/10 01:01 AM (13 years, 10 months ago)

Quote:

boomsaway said:
i dunno koons, when you top up like that for too long your water gets really toxic
the chelates that most of your minerals are attached to dont get absorbed by the plant, eventually the concentration of EDTA and such gets too high.





Define "too long" I've gone a 4week veg and 2 weeks flower without changing the reservoir and only topping it off.

I've never heard of chelating agents not being up taken by the plant. EDTA for example is commonly used in GenHy products (and basically everyone elses) The goal for the EDTA is to keep the minerals from reacting and becoming insoluble or precipitating from the solution.

I've heard that EDTA isn't biodegradable which would make me suspicious as to if it's taken up by the plant or not.

For clarity, I'm not saying you're wrong but I believe what you're saying is EDTA bound to minerals when uptaken by the plant yields just the EDTA left in the solution and not any of the mineral such as Iron?


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Invisibleboomsaway
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: captain.koons]
    #413808 - 05/08/10 08:41 AM (13 years, 10 months ago)

yea, exactly, but "too long" depends on the size of your reservoir, in smaller rezs, the concentration goes up significantly faster than in larger rezs

if your useing a 100L rez, then your likely to be able to top off for longer than if your useing a 50L, make sense?

but without titration equipment, you'll never be able to tell how much is in there at one time.

do a little research on chelating agents, ur right about them keeping minerals from reacting with each other, and to increase solubility of iron and such, but the molecules are far too large for a plant to absorb through root membranes

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InvisibleHarry_Ba11sachM
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: boomsaway]
    #413954 - 05/08/10 01:43 PM (13 years, 10 months ago)

I doubt that. If mycelia can grow coenocytic haustoria through the membrane then I would guess there are transport mechanisms to get just about any sized compound into the plant tissues.


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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: boomsaway]
    #414031 - 05/08/10 04:07 PM (13 years, 10 months ago)

Quote:

boomsaway said:
if your useing a 100L rez, then your likely to be able to top off for longer than if your useing a 50L, make sense?


do a little research on chelating agents, ur right about them keeping minerals from reacting with each other, and to increase solubility of iron and such, but the molecules are far too large for a plant to absorb through root membranes




Reservoir size is relative to the amount of plants you use.

How big are these molecules? Do you even know about how plant roots work? If you look into aeroponics you'll see that plants can be force fed droplets sized 30-80 microns in diameter and possibly much larger as nasa used to use 140microns, are you saying EDTA molecules are bigger than this?

This is also just speaking for aeroponics plants take up very large molecules all the time, they can spend a great deal of energy uptaking macro molecules (usually large complex organic molecules such as insoluble sugars) for the breakdown via catabolism. Large molecules aren't something people want in hydroponics as the idea of hydroponics is to provide minerals directly available to the plants metabolism, or you're just wasting time. Needless to say anything you find in General Hydroponics Flora series is going to be small enough to be uptaken easily and is directly available to the plants metabolism without further being broken down. This is what hydroponics is all about.

Again, are you trying to say that FeEDTA when utilized by a plant is going to have it's bond between the chelating agent (EDTA) and the mineral Fe broken so that the plant will uptake Fe and leave the EDTA behind? What causes them to separate? Is there some sort of bottleneck where the Fe gets into the plant roots and the EDTA is physically broken off and left in the solution?

I'm sorry to have amused myself, but to say such an outlandish claim without providing literature is just asking for it. Just because something isn't biodegradable doesn't mean it's not good for plants.


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Invisibleboomsaway
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: captain.koons]
    #414280 - 05/08/10 10:58 PM (13 years, 10 months ago)

heres a quick wiki...
Quote:

Toxicity and environmental considerations

EDTA is in such widespread use that it has emerged as a persistent organic pollutant.[18] Its degradation entails conversion to ethylenediaminetriacetic acid, which then cyclizes. Alternative, more readily degradable chelating agents are being developed such as ethylenediamine-N,N'-disuccinic acid.



here

and i wouldnt say that its too hard to figure out that the acids in the solution degrade the chelate, whether thats what allows uptake of the metal ion into the plant or not, leaving you with excess "empty" compound, unuseable by the plant.

so maybe it does get taken into the plant, that doesnt mean that the plant will use enough of the chelate in the solution fast enough to keep it from degrading.

i could be wrong, but i might not be, and im sure that nutrient companies do compensate for anything of this sort, i just figure y bother, change the rez... anyway, im tired

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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: boomsaway]
    #414303 - 05/08/10 11:30 PM (13 years, 10 months ago)

Quote:

Alternative, more readily degradable chelating agents are being developed such as ethylenediamine-N,N'-disuccinic acid.




Degradable = biodegradable, you shouldn't assume any information that isn't written.


Quote:


i could be wrong, but i might not be, and im sure that nutrient companies do compensate for anything of this sort, i just figure y bother, change the rez... anyway, im tired





I don't even know if I want to address this.


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InvisibleHawksresurrection
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: captain.koons]
    #414340 - 05/09/10 02:36 AM (13 years, 10 months ago)

You should be changing the res at least once a week anyways.  The plants use different amounts of nutrients at different times.  So if you just keep topping off you will get uneven amounts of nutrients in your water.  And can even end up with toxic amounts of one or another.

Now during veg it may not effect it as much.  But during flowering you should definitely be doing it weekly.  I guarantee that you will get better results.  I would NEVER go 4 weeks just topping off.


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Dude she isn't as young as she use to be.

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Invisibleboomsaway
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Hawksresurrection]
    #414370 - 05/09/10 08:20 AM (13 years, 10 months ago)

>Degradable = biodegradable

just because something degrades, doesnt mean that it degrades into compounds that have no(ill or not)effect on the environment.

the alternative agents are being developed because of the ill effects that degraded EDTA has on the environment...
otherwise why would they need to correct it?

better yet, i have an AOC lecture class coming up in the fall, ill see what my teach will have to say about EDTA and its degradation.

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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Hawksresurrection]
    #414540 - 05/09/10 12:49 PM (13 years, 10 months ago)

Quote:

hawksapprentice said:
You should be changing the res at least once a week anyways.  The plants use different amounts of nutrients at different times.  So if you just keep topping off you will get uneven amounts of nutrients in your water.  And can even end up with toxic amounts of one or another.

Now during veg it may not effect it as much.  But during flowering you should definitely be doing it weekly.  I guarantee that you will get better results.  I would NEVER go 4 weeks just topping off.




The more you know about the strain you're running the less this matters. You're right to an extent. If I ran into problems with deficiencies or burn I couldn't fix I would definitely empty my reservoir. I would also probably think of emptying my reservoir after the two week flower stretch and then you're only controlling the reservoir contents for 6-7weeks with most strains when you consider the flush. I don't run extreme ppms and I also don't run single part fertilizers. I wouldn't try this with GH Floranova.


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Invisiblecaptain.koons
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: boomsaway]
    #414541 - 05/09/10 12:57 PM (13 years, 10 months ago)

Quote:

boomsaway said:
>Degradable = biodegradable

just because something degrades, doesnt mean that it degrades into compounds that have no(ill or not)effect on the environment.

the alternative agents are being developed because of the ill effects that degraded EDTA has on the environment...
otherwise why would they need to correct it?

better yet, i have an AOC lecture class coming up in the fall, ill see what my teach will have to say about EDTA and its degradation.




Why the hell are you going on about the environment now? I was simply pointing out that EDTA is being written about and there's that replacement in the source you posted simply because EDTA has problems with it being non-biodegradable. The replacement is more biodegradable. As an indoor gardener you don't need things to be biodegradable. It is also foolish to assume that EDTA isn't uptaken by plants when you haven't quoted anything that even implies as much.


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OfflineMr. Hands
Registered: 01/18/09
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: captain.koons]
    #416072 - 05/11/10 08:47 PM (13 years, 10 months ago)

Ok!

I got a bunch of reverse osmosis'ed water from Culligan.  I also picked up some distilled water.  Both clocked out at 10 ppm with my meter.  So far so good.  Then I got some spring water from the store.  It clocked out at 250 ppm. 

I have a 40 gallon resevoir.  I put 5 gallons of spring water in (to add some micronutrients) and then 35 gallons of reverse osmosis water.  My initial ppm was 60.  Then I added my nutrients and got it up to about 1250 ppm.  I have been topping off with distilled water.  There is not a drop of tap water in this batch.  Hopefully this solves my problems.

Unfortunately, I still can't empty my resevoir on a regular basis so I risk nutrient toxicity issues.  But, I will be closely watching my ppm's and PH and dumping a lot of distilled water in to keep my ppm's at a reasonable level.

Hopefully I get better results!

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OfflineOatman2000
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Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Harry_Ba11sach]
    #418299 - 05/15/10 11:33 AM (13 years, 10 months ago)

Quote:

Harry_Ba11sach said:
Quote:

Mr. Hands said:
Quick search of a 240 gallon per day R.O. machine - $940.

Yikes.





You didn't look very hard

http://www.rvfgardensupply.com/cgi/display.cgi?item_num=728820





Do you know if this hooks up to a hose connection?
Or is this something you need to hook up in you house line?


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Spawning to COIR
Building a flood table out of 2 kiddie pools
:heart:  Ebb and Gro - Buckets 2000w
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4-PO-DMT; 4-phosphoryloxy-N,N-dimethltryptamine

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OfflineMr. Hands
Registered: 01/18/09
Posts: 89
Last seen: 13 years, 3 months
Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Oatman2000]
    #424261 - 05/26/10 04:13 PM (13 years, 9 months ago)

I am starting to get end-leaf burnage again.  Granted, I still have 3 1/2 weeks to go, so we'll see what happens.  But, I am not optimistic.

Not to diss you hydro guys, but I think it is easier to throw some plants in a pot with soil and occasionally water it and call it a day.  With the amount of expense and time I spend getting "clean water", filling the resevoir, emptying the resevoir, buying rockwool and nutes and checking ppm and PH I would save money, time and be further ahead just growing the old-fashioned way.  :shrug:

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OfflineMr. Hands
Registered: 01/18/09
Posts: 89
Last seen: 13 years, 3 months
Re: What does it mean when the ends of your leaves are a little brown and curled? [Re: Mr. Hands]
    #438110 - 06/26/10 03:02 PM (13 years, 8 months ago)

Wow.  I must really suck at this.

The reverse osmosis water experiment failed terribly.  I didn't even get a joint's worth off of my harvest.  It was all stringy and sparse buds that were not worth smoking. 

I have gone back to using tap water.  Instead of changing the resevoir in week 3 of budding and trying to top off the rest of the time, I have changed the resevoir at the beginning of week 3 budding and week 5 during budding.  My plants are still looking like crap.

To be honest, I was getting harvests of six ounces off of dumping ungodly amounts of BC Bud products in and the second I went to Flora Nova and started keeping my ppm's from 1100-1500 I started getting NOTHING.  I am thinking of going back to BC, but I can't fathom what I am doing wrong here because everybody raves about Flora stuff.



P.S.  I also started some potted plants in the budding cycle with organic soil and worm castings.  The leaves are curling and turning all kinds of funny colors.

Plants just don't like me.  :shrug:

How was I able to get six ounces consistently by using BC products, not changing my resevoir and having WAY over 1800 ppm's, but when I use Flora Nova and I keep my ppm's in check I get nothing?

Edited by Mr. Hands (06/26/10 03:04 PM)

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