Bottom leaves yellowing W/ PICS

DrRonPaul2012

Well-Known Member
It's never been a problem for me. If that were the case wouldn't if apply to Rockwool as well? Many commercial growers use multiple plants in rockwool slabs.
i always thought that was to save water and only during cloning before the roots could stretch but clearly it works for you so idk
 

workinit

Well-Known Member
Outdated information IMO. Good read though, and I will see if that is still considered true to today's scientist. You have defanitetly made your points, but I'll still ph my water. If you were to read my post, I already talked about not using any "salts" for ph adjustment with organics. I use them in hydro, yes.

As far as the plants, they are slight "yellow" or lime green. I'm looking for more of a lush green. How old are they?
They are under a Solis Tek 6K, here is a lights out shot.

They were transplanted from dixie cups on the 3rd, so 10 days from small clones.

DSC_0013.JPG DSC_0014.JPG
 

Carolina Dream'n

Well-Known Member
Lol, do the research. It's science. Your medium controls the the PH not the solution/water. Your alkalinity can change your mediums PH over time. My water's PH is 7.2. I use half tap and half RO which puts my alkalinity at abut 35 ppm. Science says that so long as your medium is PH buffered you DO NOT NEED to PH your water or solution. I bet your using good ol' phosphoric acid to lower your PH aren't you. Did you know that your adding a shit ton of P to your water/solution. Botanicare list the NPK of their PH down as 0 15 0. So instead of feeding at whatever your nutrient NPK is your feeding at that level plus all that P, see where this goes. I'm not pulling this out of my ass, here is a little bit of science behind what I believe.

Water Quality: pH and Alkalinity
Recently, some growers have expressed concern about the "high pH" of their irrigation water and its potential adverse effects on plants. The purpose of this article is to allay some of these concerns by pointing out the difference between "high pH" and "high alkalinity".

Alkalinity and pH are two important factors in determining the suitability of water for irrigating plants. pH is a measure of the concentration of hydrogen ions (H+) in water or other liquids. In general, water for irrigation should have a pH b etween 5.0 and 7.0. Water with pH below 7.0 is termed "acidic" and water with pH above 7.0 is termed "basic"; pH 7.0 is "neutral". Sometimes the term "alkaline" is used instead of "basic" and often "alkaline" is confused with "alkalinity". Alkalinity is a measure of the water's ability to neutralize acidity.An alkalinity test measures the level of bicarbonates, carbonates, and hydroxides in water and test results are generally expressed as "ppm of calcium carbonate (CaCO3)". The desirable range f or irrigation water is 0 to 100 ppm calcium carbonate. Levels between 30 and 60 ppm are considered optimum for most plants.

Irrigation water tests should always include both pH and alkalinity tests. A pH test by itself is not an indication of alkalinity. Water with high alkalinity (i.e., high levels of bicarbonates or carbonates) always has a pH value ÷7 or above, but water with high pH doesn't always have high alkalinity. This is important because high alkalinity exerts the most significant effects on growing medium fertility and plant nutrition.

Acidification of High Alkalinity Water
Many greenhouse operators inject acid (e.g., phosphoric, nitric, or sulfuric acid) into water with problematic high levels of alkalinity. Acidification of water having high pH but low alkalinity is rarely necessary. The use of acid injection sh ould be considered very carefully for several reasons. First, it is an extra step in production which will require additional materials and equipment. Second, acids are dangerous to handle and may damage some injectors and piping systems. Third, phosphoric or nitric acid are sources of P and NO3, so the regular fertilizer program may need to be modified to take into account the addition of these nutrients. This would depend on how much acid must be used to neutralize the alkalinity and reduce pH. Fourth, sometimes acid injection causes the solubilization of normally precipitated (unavailable) forms of trace elements resulting in levels toxic to plants.

The amount of acid required to reach the desired pH (i.e., neutralize alkalinity) is determined by laboratory titration of a water sample with the appropriate acid or by a calculation procedure. Some "fine-tuning" may be needed later when actual inject ion is started. Acid is always injected prior to the addition of fertilizer or other chemicals.

Prepared by Douglas Cox
Plant and Soil Sciences
University of Massachusetts
Amherst
August 1995.


And as so far as my plant's "are not perfect", please point out what's not "perfect" in the pic below as my eyes see perfection.
There is nothing organic about my grow 100% mineral salts in Promix HP.
View attachment 3312520
I appreciate you enlighten me on alkalinity. Some interesting information. After further research, your points are valid. But the medium must be ph buffered for this to work. Personally, I won't risk it, I'll use my organic ph up or down and sleep better at night about it. But yes, you proved it isn't necessary.
 

workinit

Well-Known Member
Don't get me wrong guys, I'm not saying I'm super grower or some crap. Far from it. What idiot can't pour some water into dirt, right? My methods are stupid easy. It's the methodology that many growers follow that I'm challenging. I think we make this hobby much more difficult than it should be.
 

workinit

Well-Known Member
I appreciate you enlighten me on alkalinity. Some interesting information. After further research, your points are valid. But the medium must be ph buffered for this to work. Personally, I won't risk it, I'll use my organic ph up or down and sleep better at night about it. But yes, you proved it isn't necessary.
Every grower has their own style it's what's so great about this hobby!
 

DrRonPaul2012

Well-Known Member
i don't know what to make of this plant because im treating as the same as the other one that i started a day eariler but its just being a runt. i'll post some new pics to show you what i mean
 

DrRonPaul2012

Well-Known Member
so my run off for my healthy plant is 6.06 which is atleast a whole half ph point off from where i like them so how much lime would i need to add to just raise the ph by a half a point for 7.5" diameter pot?
 

woody333333

Well-Known Member
so my run off for my healthy plant is 6.06 which is atleast a whole half ph point off from where i like them so how much lime would i need to add to just raise the ph by a half a point for 7.5" diameter pot?
testing runoff wont tell ya anything..... the number coming out the bottom is complete bullshit in soil...... a cheap ass soil probe would get ya closer...

I wanna hear your beliefs about how all drugs should be legal....lol
 

DrRonPaul2012

Well-Known Member
testing runoff wont tell ya anything..... the number coming out the bottom is complete bullshit in soil...... a cheap ass soil probe would get ya closer...

I wanna hear your beliefs about how all drugs should be legal....lol
1)so why is it still getting yellow if the ph isn't a problem? but that ludicrous to say runoff don't matter.runoff is still important, just needed more info than i thought about it... from what i read a runoff of 6.0 is actually really good so i wouldn't have known that if i didn't check it.


2) i don't believe in the drug war first and foremost. secondly i hate cartels if drugs were legal there would be less crime involving drugs. people are free to do what they want, if you wanna smoke crack go for it... i mean dude get real, people are going to do what they want anyways WHY turn them into criminals... just because you do drugs doesn't make you a criminal, if you commit a crime ON drugs then so be it, then you got to pay the consequences of those actions if you happen to harm someone or what have you. but also because of the prison per captia of the united states is the highest in the world
 
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woody333333

Well-Known Member
1) think if you give it some time and lay off the water they will be ok..... I believe what roots you do have are smothered...... less than a week ago that was mud

2) that's retarded .....
 

DrRonPaul2012

Well-Known Member
1) think if you give it some time and lay off the water they will be ok..... I believe what roots you do have are smothered...... less than a week ago that was mud

2) that's retarded .....

haven't watered it since you said not to and its still getting yellow... so you deff have no idea what your talking about when it comes to life... go troll someone else you fucking boot licking cunt bag

2) name one thing that im wrong about... your a fucking cock sucking douche bag who needs to be removed from this realm.... fucking SHEEPLE fucks like you deserve no air on this planet

woody and uncle buck need to be arrested for being asshats... fucking assholes

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you just can't handle the truth.... so you attack me and others like me for reminding you what you pretend to ignore and refuse to deal with... 'fuck off lahey' 'your a drunk clown'
 
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Carolina Dream'n

Well-Known Member
1) think if you give it some time and lay off the water they will be ok..... I believe what roots you do have are smothered...... less than a week ago that was mud

2) that's retarded .....
You might get cussed out less if you stop calling people names. You could have easily just said I don't agree with that, state your points and have a civil debate about it.
Mexico has done a verizon of what the op has stated, made simple possession of most drugs legal. A simple herion or cocaine addict isn't a criminal, until they do criminal acts to get that drug.
 

woody333333

Well-Known Member
haven't watered it since you said not to and its still getting yellow... so you deff have no idea what your talking about when it comes to life... go troll someone else you fucking boot licking cunt bag

2) name one thing that im wrong about... your a fucking cock sucking douche bag who needs to be removed from this realm.... fucking SHEEPLE fucks like you deserve no air on this planet

woody and uncle buck need to be arrested for being asshats... fucking assholes

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you just can't handle the truth.... so you attack me and others like me for reminding you what you pretend to ignore and refuse to deal with... 'fuck off lahey' 'your a drunk clown'

it hasn't taken root in that pot yet because its still too wet........ wait

2) drug addicts spend their entire day doing crime to feed their habit........ legal drugs equals more addicts..... so less possession charges and more crank smokers trying to pawn garden hoses.......retarded......
 

Carolina Dream'n

Well-Known Member
it hasn't taken root in that pot yet because its still too wet........ wait

2) drug addicts spend their entire day doing crime to feed their habit........ legal drugs equals more addicts..... so less possession charges and more crank smokers trying to pawn garden hoses.......retarded......
Saying all addicts commit crimes to feeds their habits is ignorant. I know atleast 100 "addicts" that work for their money, legally. Whether it be pain pills, cocaine, herion, Xanax, alchohol; they wake up every morning to go to their job to feed their habit. The only crime they commit is putting something in their own body.
 

nomofatum

Well-Known Member
Saying all addicts commit crimes to feeds their habits is ignorant. I know atleast 100 "addicts" that work for their money, legally. Whether it be pain pills, cocaine, herion, Xanax, alchohol; they wake up every morning to go to their job to feed their habit. The only crime they commit is putting something in their own body.
I'm with you. It's also funny that it's illegal to kill yourself. Who the F do these lawmakers think they are, the crime is the law itself. This is a question of freedom and rights. The crackhead has a right to smoke/consume whatever he wishes, if that results in him walking into my backyard to steal something I have a right to shoot him, I see nothing wrong with giving everyone there rights back and letting natural selection play out.
 

DrRonPaul2012

Well-Known Member
its ok guys... i blocked him... just ignore the trolls

maybe he will accidently put bleach in his coffee... one less STATIST asshat in the world would make me SMILE


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LMFAO buddy its COMPLETELY dry, the bottom was slightly ever so slightly moist on the bottom of the pot, pretty much dry tho and its still yellowing, not drooping at all but just yellowing... i know its a ph problem, its hasn't even grown in a week atleast

also the soil might even be too strong for it, the top of the plant is almost a blueish shade of green which im pretty sure is a N toxicity
 
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crawlintbss

Well-Known Member
FF soils are hot for seedlings. its probably just too much for it. Stick with straight water for now. From info Ive compiled FFOF has enough food for about the first 3-4wks of veg. If its just the 2 lower ones i wouldnt worry much and keep an eye on new growth. Dark green is leaning towards N Tox. Id give a good few waterings with at least 20%+ runoff. Also dont let them run off into that drip pan, and then sit in the water. thats even worse. I take all my plants out of the tent and prop them onto 5gal buckets with lids that have holes all over the lid. I water and let them drain for 20mins. Then back into the tent with a saucer. Saucer is emptied once again before lights out. so no standing water is available for roots to soak in.

As far as temps you should be fine. im 71-73 during day, and 65-69 at night. No problems here and tons of bud growth still going on.
 
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