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EC PPM problem soil medium

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EC PPM problem soil medium

10piotr74 42 Replies 4,032 Views
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10piotr74

10piotr74

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#1
my plants are in medium soil during vegetation, my EC is twice as high at the drain, I did a flush and now the question is, if I water with clean tap water EC 0.6 PPM 300 HOW MUCH SHOULD I HAVE an EC runoff? thx
 
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#2
Run off should be the same ec as input or as much 25% higher, any more than that and I consider salt build up , but if your watering correct and have runoff consistent there usually is not a problem.
 
#3
I made a flush with tap water plus Hygrozyme, now we have EC of drainage 1.0 so should I leave it or rinse it?
 
#4
Moshmen said:
Run off should be the same ec as input or as much 25% higher, any more than that and I consider salt build up , but if your watering correct and have runoff consistent there usually is not a problem.
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I had EC 1.1 and drain 3.4 so I flush, and now I have drain 1.0 so I should leave the next feed only with water can I add 321 Jacks
 
#6
I prolly water only once then start back up the balanced feed. But kinda guessin with out pics
 
#7
With soil if you never tested what the runoff was with just plain tap then you have no baseline to go off of.
The soil has something and when you create runoff some 'elements' from the soil is added to the original tap EC. It has to be higher than taps EC. 🤷‍♂️
You don't know what that was so now everyone is just guessing.🤔
 
#8
now after flush my EC is 0.6 ppm 300, can I feed the plants back or should I just use clean water?
 
#9
now after flush my runoff EC 1.0, can I feed the plants back or should I just use clean water?
my tap water EC 0.65 ppm 300
I don't know what I should do only use pure water and if so when can I start adding macro and micro elements
 
#10
Dont go by ppm of run off in soil It wont be accurate. To many things in soil affect ppm that are not nutrients. Runoff of 2000-3000ppm is not uncommon in soil.

Have some pics of the plants so i can see how they are responding
 
#11
Aqua Man said:
Dont go by ppm of run off in soil It wont be accurate. To many things in soil affect ppm that are not nutrients. Runoff of 2000-3000ppm is not uncommon in soil.

Have some pics of the plants so i can see how they are responding
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this white coating is dolomite lime because the soil pH dropped to 5.5 due to the flush ph
 

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#12
these are automats and in these small pots they are seasonal
 

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#14
RH 70-75
400ppfd only
please tell me when the soil is dry pour clean tap water or buy RO and add 3/2/1 jacks
 
#19
10piotr74 said:
the plants look scarred because they have flushed twice
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The ppfd is to high for those plants.

Your like to see new growth become light green as they are likely to low in nutrients now. So next watering give then a feed. Do not waste your time chasing runoff numbers in soil. They are only useful to see trending but not a good measure of nutrients. This only applies to soil.
 
#20
They are stunted from light stress. It should take 5-7 days to recover also
 
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