The Truth About Flushing

Odin*

Odin*

Well-Known Member
Budley Doright said:
Try it yourself and see what you think. I don't flush as a rule but it may/or may not have saved an otherwise shitty tasting run (used an additive recommended by my at the time trusted hydro store guy) by flushing. One half unflushed but taken a week early, the other flushed with plain water. First half tasted like love canal, second half tasted fine lol. Never notice a difference normally though.
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Maybe it's just the banging hot girls over here that keep it "fresh", or maybe the "Love Canal" refers to the "back door" (?), "Entance in Rear". :bigjoint: I've never had a sour "flower", which makes "Love Canal" sound enticing (unless we're talking about ass).


I had a buddy who's first "dinning out" experience was traumatizing :spew: (and good for a laugh). :lol:
 
BobCajun

BobCajun

Well-Known Member
Plants can hold more nutes than they can use right away. The more they transpire and the higher the ppm the more builds up, which is what causes nute toxicity. So letting them use up some of that built up stuff is probably a good idea.

This quote shows how phosphorus can build up, for instance.
For example, the water removed from solution through transpiration must be
replaced and it is necessary to have about 0.5 mM phosphorous in the refill solution. If
the refill solution was added once each day, the phosphorous would be absorbed by the
plant in a few hours and the solution phosphorous concentration would be close to zero.
This does not indicate a deficiency, rather it indicates a healthy plant with rapid nutrient
uptake. If phosphorous was maintained at 0.5 mM in the recirculating solution, the
phosphorous concentration in the plant could increase to 1% of the dry mass, which is 3
times higher than the optimum in most plants. This high phosphorous level can induce
iron and zinc deficiency (Chaney and Coulombe, 1982). Feeding plants in this way is like
the daily feeding of a pet dog, some dogs would be badly overweight if their food bowls
were kept continuously full.

Nutrient Management in Recirculating Hydroponic Culture
Bruce Bugbee
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Dr.Nick Riviera

Well-Known Member
BobCajun said:
Plants can hold about 3 times as much of most nutes as they can use right away. Might be even more but I know I read something about 3 at least. The more they transpire and the higher the ppm the more builds up, which is what causes nute toxicity. So letting them use up some of that built up stuff is probably a good idea.
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and where do those"used up"nutes go as you are trying to wash them out?
 
greg nr

greg nr

Well-Known Member
Love Canal was/is a toxic waste superfund site in the US. Upstate NY. It's pretty much become the poster child for corporate irresponsibility and pollution.
 
Budley Doright

Budley Doright

Well-Known Member
greg nr said:
Love Canal was/is a toxic waste superfund site in the US. Upstate NY. It's pretty much become the poster child for corporate irresponsibility and pollution.
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Or as stated earlier, the Hershey highway, the back door, oops sorry, FIM, and a few more lol.
 
Budley Doright

Budley Doright

Well-Known Member
BobCajun

BobCajun

Well-Known Member
Dr.Nick Riviera said:
and where do those"used up"nutes go as you are trying to wash them out?
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Good question. I guess they would have to be used for further growth. So it would be the same amount of the nutes but spread out over more plant material, therefore presumably less harsh. I don't know how long it would take to use them up though, maybe longer than the standard flushing period.
 
Chunky Stool

Chunky Stool

Well-Known Member
BobCajun said:
Plants can hold more nutes than they can use right away. The more they transpire and the higher the ppm the more builds up, which is what causes nute toxicity. So letting them use up some of that built up stuff is probably a good idea.

This quote shows how phosphorus can build up, for instance.
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Excess phosphorous during flower is the key to growing shitty weed that makes you cough and gag.
Some people fall into the semi-organic trap, where they start organic and later switch to a complete synthetic nute when they see nitrogen deficiency. Sometimes you can get away with this and sometimes you can't. The plant needs N but it may not need extra P & K -- or trace elements like molybdenum.
Adding soluble P will also change the soil biology over time, which may not be desirable.
If you are growing organic and your plants need N, just give them N.
 
Tx-Peanutt

Tx-Peanutt

Well-Known Member
whitebb2727 said:
My bottle of dynagro says nothing about flushing on it.
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I have a plant that is in week 5 of flower and is yellowing I gave her some epsom salt last night with water , her feeding night is coming up so I'm wondering what is going wrong with my plant I can't figure it out.... I have read that magnesium will cause it to yellow but under watering will also
 
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