Clearly you aren't flushing with Brawndo like you should. Brawndo has what plants crave!
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The science of the flush? Seriously? Who's science? Bruce Buggy? Harley Smith? I studied the science of human anatomy and physiology for 4 years and 3 years of other sciences leading up to that. This is not so difficult. Plants have very few parameters. to consider by comparison to animals. The science you refer to is mostly pseudosciences.Please do further research Mak. Fox Farm Labs knows that their nutrients leave behind a lot of salts in the soil. I bring them up because I think it can be generally agreed that they know what they are talking about. They actually recommend a full 3x container size flush periodically during the grow and it is so important that they have put this right on the feeding schedule where it can not be missed. Flushing is important, if you run this type of synthetic nutrient that is EDTA chelated, especially if you use the fertilizer as strongly as is recommended in the Fox Farm system.
It has been explained over and over and over again the science of the flush... we are not flushing the plants because that is impossible, we are flushing the soil. Salt dissolves in water and a 3x flush washes it right out of there. That is all the science you need to understand. You can not flush the plants. It would be like trying to cure a stomach ache by taking 50 baths all in a row... it just doesn't have any effect inside of you.
Salt builds up in a synthetic nutrient grow. It does not build up in an organic grow not using those types of nutes. THerefore, organic grows do not ever need to be flushed, a synthetic grow can benefit from multiple flushes, with the very most important one being right before the final bud stretch in the last two weeks. A full 3x flush at week 6 does wonders to free up the soil from built up salts which allows a full load of nutrients to go into the plants for the last two weeks, providing for a dramatic finish.
Most of your argument above was you clearly seeing that flushing the plant itself is total myth. So on this flushing thing, you are both right and wrong, depending on how you are looking at this. Some people also mistakenly call starving the plant of nutrients for the last week or two, flushing. This is not a true use of the term, although technically you are flushing the plant itself by starving it till the end, sacrificing yield and quality for purity.
The studies on this extend well into the past, at least somewhere in the 1960's. How large do you need this study to be before it becomes valid? Surely 60 years of growing this plant within a community is enough to start getting an idea? Actually, there was no confusion at all until a few years ago, when the word flush started being used to mean an end of the grow starvation, and when others started advocating that there was never a need to flush. As short as 5 or 6 years ago, flushing was the first advice you would get in online forums when you had a problem and many of us still believe that to be the best thing to start with.*The 'science' / 'studies' on both sides of the issue are total hogwash, too small and not enough peer review.
I completely agree with you. Hell, Ive been growing for 50 years or so.The studies on this extend well into the past, at least somewhere in the 1960's. How large do you need this study to be before it becomes valid? Surely 60 years of growing this plant within a community is enough to start getting an idea? Actually, there was no confusion at all until a few years ago, when the word flush started being used to mean an end of the grow starvation, and when others started advocating that there was never a need to flush. As short as 5 or 6 years ago, flushing was the first advice you would get in online forums when you had a problem and many of us still believe that to be the best thing to start with.
How many grows you done friend?I am trying to imagine someone with (6 to 8) 25 gallon planters. 600 gallons of water to flush the soil once. I had (6) 5 gallon pots or 90 gallons of water to flush once @ 3X volume. I should flush for 2 weeks? a month? What, twice a week for a month? 700+ gallons of water to flush away some water soluble salts. OK, flush once to rid water soluble salts that never built up in the first place because I feed 20% runoff.
I know our plants produce way better than commercial growers. Can you even imagine professionals simply throwing away 20% of the cost of feed/fertilizers. Then trying to clear away excess salts. Shoot, I did not know it was feed/water/feed/water. My first grow I was out of town a lot so I messed up doing a feed/feed/feed/feed. I absolutely hammered the nutes and it didn't even mater till the last 3 weeks. I did a flush with 1/2 water volume and corrected any issues. I would love to see where Fox Farm states 3X flushing and can support their reasonings based on legitimate scientific data. I keep looking for a company to make a claim as this. I already have smoke...and a mirror, and a fan to blow it around, and some lighting to make it look cool. The visual looks like an intro to WWE cage match. That's my commercial. "BUY my product". Made right here in the great State of (fill in the blank)!
maybe you understand now why most commercial ops are hydro. It is a whole lot easier to flush a large reservoir than to flush that much soil.... and yes, hydro ops using synthetic nutes also have to flush.I am trying to imagine someone with (6 to 8) 25 gallon planters. 600 gallons of water to flush the soil once. I had (6) 5 gallon pots or 90 gallons of water to flush once @ 3X volume. I should flush for 2 weeks? a month? What, twice a week for a month? 700+ gallons of water to flush away some water soluble salts. OK, flush once to rid water soluble salts that never built up in the first place because I feed 20% runoff.
I know our plants produce way better than commercial growers. Can you even imagine professionals simply throwing away 20% of the cost of feed/fertilizers. Then trying to clear away excess salts. Shoot, I did not know it was feed/water/feed/water. My first grow I was out of town a lot so I messed up doing a feed/feed/feed/feed. I absolutely hammered the nutes and it didn't even mater till the last 3 weeks. I did a flush with 1/2 water volume and corrected any issues. I would love to see where Fox Farm states 3X flushing and can support their reasonings based on legitimate scientific data. I keep looking for a company to make a claim as this. I already have smoke...and a mirror, and a fan to blow it around, and some lighting to make it look cool. The visual looks like an intro to WWE cage match. That's my commercial. "BUY my product". Made right here in the great State of (fill in the blank)!
You seem to be combining "flushing soil" with "flushing the plant".I am trying to imagine someone with (6 to 8) 25 gallon planters. 600 gallons of water to flush the soil once. I had (6) 5 gallon pots or 90 gallons of water to flush once @ 3X volume. I should flush for 2 weeks? a month? What, twice a week for a month? 700+ gallons of water to flush away some water soluble salts. OK, flush once to rid water soluble salts that never built up in the first place because I feed 20% runoff.
I know our plants produce way better than commercial growers. Can you even imagine professionals simply throwing away 20% of the cost of feed/fertilizers. Then trying to clear away excess salts. Shoot, I did not know it was feed/water/feed/water. My first grow I was out of town a lot so I messed up doing a feed/feed/feed/feed. I absolutely hammered the nutes and it didn't even mater till the last 3 weeks. I did a flush with 1/2 water volume and corrected any issues. I would love to see where Fox Farm states 3X flushing and can support their reasonings based on legitimate scientific data. I keep looking for a company to make a claim as this. I already have smoke...and a mirror, and a fan to blow it around, and some lighting to make it look cool. The visual looks like an intro to WWE cage match. That's my commercial. "BUY my product". Made right here in the great State of (fill in the blank)!
There are quite a few studies on this and all come to the same conclusion.
- Flushing periods of 14, 10, 7 and 0 days were imposed on Cherry Diesel.
- Taste test panelists tended to prefer flower flushed for 0 days.
The first thing I tried to find out is how do I flush. Not even what where when or why. Just HOW? that lead me here. "Flushing the nutrition out of the soil – Yes, you can do that – especially in a hydro grow." Theory #1 from the reference above.Cannabis Flushing Research Study
In our research study, RX Green Technologies evaluated the effects of different flushing times on chemical profile, flavor, and smoke of cannabis flower.www.rxgreentechnologies.com
There are quite a few studies on this and all come to the same conclusion.
Thats all fine and dandy.The first thing I tried to find out is how do I flush. Not even what where when or why. Just HOW? that lead me here. "Flushing the nutrition out of the soil – Yes, you can do that – especially in a hydro grow." Theory #1 from the reference above.
What I will never do is pour 15 gallons of water over my little 5 gallon pots and I don't care what flavor the rest of you drink. That ain't right in my world.
I look at different companies and their nutrient schedules, the one thing all change at the end of flower is the form of Nitrogen they use. If you ask 5 professionals for an opinion and get 5 radically different answers, consider any lawman's opinion to be valid as any trained professional. That's where I'm at with flushing. Metaphorically, 5 answers to a question I never asked.
Merry Christmas
OH no. I screwed up big time. I am nearly done with my second grow. Nannered most of my first bag seed plants. Wrecked another one in veg and put one into shock deep into flower resulting in garbage in the end. That left me with 2 awesome healthy plants that showed me SOO many ways I could have done better. I don't feel too bad about these major screw ups. I learned more in my mistakes than I would have in years of healthy plants.Thats all fine and dandy.
I flushed "soil" once in my life and that was first grow, that was also first and last grow using bottled plant available nutrients.
I had slightly overdone the nutrients in veg and when I flipped to flower and doubled my PPFD on lights everything went whack and I needed to flush out the soil a bit (7 gal fabric pot) to basically reboot.
Within 24 hours it was right back to normal.
Been using larger and larger pots of Living Organic Soil ever since thus never any reason to reboot the soil, no bottled nutrients used.
But regardless of all that the only question here is whether or not "flushing the plant" during the final two weeks of growth has any positive effects on the final dried and cured bud, and it definitively does not.
As for flushing the soil,hydro-soil or hydro do it or don't do it.
It only matters if you have phucked up the balance of your grow medium.
So if for whatever reason the last week of veg you end up having way too much nitrogen then you can choose to "flush" some of that nitrogen from your medium or can choose to have nitrogen toxicity going into flower.
Apparently you're very fortunate to never have an over abundance of one or more nutrients.
I hope you continue to have this good fortune.
Thank you. Help me under one flush type. Staying with Fox Farm schedule and I am going to do a flush going into flower. What Do I do? I should pour 15 gallons of sledge hammer treated water over each 5 gallon pot to flush away water soluble salts built up in my soil. There's no possible way that could be right. There must be a thousand old hippies shaking their heads saying, "Damn kids these days don't know shit."Definitely need to determine what kind of flushing we're talking about. There's flushing to remove excess salts and re-set the soil, this can be necessary at most any time during a grow, and then there's flushing to induce starvation of the plant before harvest, starvation flushing has been proven to be just about useless. Flushing to remove excess salts and cure Lock-out is a reality, and often a necessary one.