"Runoff pH is useless" or "Keep an open mind"?

simpleleaf

simpleleaf

Well-Known Member
xtsho said:
I never check runoff pH. If you feed and water your plant properly you won't have any issues or need to be fiddling with out of whack pH and EC numbers. I just don't understand how so many people screw up such a simple task as growing a cannabis plant that they need to be checking runoff pH which by the way is highly inaccurate.

I've seen too many posts where someone has screwed up their plants because they checked runoff pH and the number wasn't what they thought it should be so they dumped a bunch of high or low pH'd solution on their plant to get the runoff to the number they think it should be.

The pH and EC of what goes in is all that matters. If you do that right you will be fine regardless of what you're growing in. Typically with soil you can just use tap water without bothering with pH. Testing pH used to be a hydro thing but now soil growers are fiddling around with it and in many cases are just causing problems by throwing the soil out of whack.

Many cannabis growers make growing more complicated than it needs to be.
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I didn't use to check runoff pH, and plants grew fine, under sunlight. I believe back then I typically used some of Peter's non-hydroponic fertilizer formulas. Lighting technology has evolved, laws have changed, more folks grow indoors under strictly-controlled environments. Folks watch their plants, and they may notice that the plant doesn't seem to be growing as optimally as it could be. A search for answers begins. This can lead to a long experience of what is ultimately personal discovery and learning. That may be a messy (complicated) process.

I don't know how much adjusting runoff pH via nitrate:ammonium ratio will help optimize growth, but I believe it will help some. I will continue checking runoff pH because I've already learned runoff pH is a value I can easily manipulate by slightly altering the fertilizer-salts mix.
 
hotrodharley

hotrodharley

Well-Known Member
simpleleaf said:
I didn't use to check runoff pH, and plants grew fine, under sunlight. I believe back then I typically used some of Peter's non-hydroponic fertilizer formulas. Lighting technology has evolved, laws have changed, more folks grow indoors under strictly-controlled environments. Folks watch their plants, and they may notice that the plant doesn't seem to be growing as optimally as it could be. A search for answers begins. This can lead to a long experience of what is ultimately personal discovery and learning. That may be a messy (complicated) process.

I don't know how much adjusting runoff pH via nitrate:ammonium ratio will help optimize growth, but I believe it will help some. I will continue checking runoff pH because I've already learned runoff pH is a value I can easily manipulate by slightly altering the fertilizer-salts mix.
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Another rat turd cracker. Newbies, ignore this crap. Many people grow great bud in a variety of mediums including true hydro without ever checking pH. You absolutely don't need to check a runoff pH. I'll promise.
 
jondamon

jondamon

Well-Known Member
simpleleaf said:
I didn't use to check runoff pH, and plants grew fine, under sunlight. I believe back then I typically used some of Peter's non-hydroponic fertilizer formulas. Lighting technology has evolved, laws have changed, more folks grow indoors under strictly-controlled environments. Folks watch their plants, and they may notice that the plant doesn't seem to be growing as optimally as it could be. A search for answers begins. This can lead to a long experience of what is ultimately personal discovery and learning. That may be a messy (complicated) process.

I don't know how much adjusting runoff pH via nitrate:ammonium ratio will help optimize growth, but I believe it will help some. I will continue checking runoff pH because I've already learned runoff pH is a value I can easily manipulate by slightly altering the fertilizer-salts mix.
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but again how do you know what’s happening within the rhizosphere as far as pH is concerned when testing runoff pH in mediums that buffer?

see what I’m saying?

As a test I’m going to check my runoff pH later once im home from throwing the arrows just to see what it’s coming out at because I know my plant isn’t struggling for anything and that im
Feeding at 6pH EC 1.2.

The runoff EC is between 0.8-1.0 which I know already.

I would expect my runoff pH to be around the 6.5-7 due to less salinity in my runoff.

but we’ll see later.

pics of the plant in question that I will be testing. (Sorry @bk78 for posting another pic :p )

2D7B3EE5-C3C9-4595-87AE-23AE800CF454.jpegFAA16FEB-7C11-48C0-B71E-57B5832121A8.jpeg
 
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