How much nutes are absorbed into the plant within first couple of days since feed ?
- Thread starter Joker90
- Start date
Millo
Well-Known Member
1500 ppm is way too much. Unless you're in late flower, which would still be a lot
You should aim for 300-500 ppm the first stage of plant's life
Forgot to had I'm probably mid flower .
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MustGro
Well-Known Member
No your plant didn’t uptake 1000 ppms in a day. If you input 0 ppm water, you’d still get a ppm reading that was more than 0 in the runoff. The medium is storing most of the elements you put into the solution. The plants roots will uptake the elements they like the charges on the most first. In hydro that’s NPK and Mn. Not sure if those exact elements apply to your medium, but the principle is the same.
So what your saying is the roots are storing the most and the soil is holding the rest which will eventually be sucked up by the roots as long as there is moisture .....
In terms of overfeeding .... Will the roots take what they need or do they store maximum capacity and feed the plant .... Guess I really need to read more
Can I resolve an overfeed with a flush or will a good portion of the overfeed be already stored in the roots
MustGro
Well-Known Member
I‘m not so sure the roots store any nutes, but not an expert on this. The soilless will bind elements to it and release them to the roots in the presence of water. The roots will take up the elements that are electrically compatible with them, but that changes because roots exude wastes and carbohydrates, that also changes from day to night.
Overfeeding is more an abundance of elements in the substrate that are the right charge for the roots and they take in more than the plant needs. I think anyway.
Flushing works well to remove elements.
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Thanks for the response. I'm still slightly confused as to how the run off works.
If I feed the soil medium 1500ppm nutes which is what the runoff was. And then flush with pH water and it runs 500ppm . Is there anyway to guage how much I should flush .I poured 2 litres into the medium which expleted I guess 500ppm .
I guess there is salts etc already stored in the medium and the run off is only a small example.
I have a soil tester but it's not very accurate but that's only for pH
If I get a run off of 500 ppm can I make a rough assumption that 1000ppm is still in the soil.. I guess not
Apologies for all the questions
MustGro
Well-Known Member
You’re not doing a flush with that amount of water, it’s just runoff, but I don’t think it works like that.
Yes it’s in the medium.
You’re right, I don’t think you can assume that.
waterproof808
Well-Known Member
why were you flushing a day after feeding?
Sorry yes meant to say . I started with 2 litres yo guage what the run off is . I've continued with a further 8 litres .
I assume flushing is really to be done thoroughly to completely clear the soil as best possible . And clearing the soil of say 600 ppm is just guess work without proper equipment
I fed too much and the plant showed clear signs of too much potassium and burnt tips . Clawing leaves as well. some of the leaves became very thin lost colour and brake yo the touch . so I Wanted to flush or really just add another few litres of water to dilute the amount of feed. But trying to find out is there anyway to guage what's being taken out and what's left in the soil