organic grow n toxicity

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biginjvpvn

Member
End of week 4- Beg of week 5 @ 30 DLI
Critical 2.0 and CDLC

This is my second attempt for autoflowers with bitotabs line. This time Im using Silicium Flash.
Soil: Biobizz light mix
15L Fabric pots
Both tabs were placed around day 10-11 after they popped from soil.
RH- 65%, 0.7 kPa
Temperature - 24-25C
Watering 1.5L every week (I am worried of overwatering and ruining roots because soil seems moist when I check it after 3-4 days)
PH 6.3

The one with claws is closest to the fan and honestly I have no idea what caused clawing leaves.
Suspecting N toxicity.
But how do I fix N toxicity when growing organic? Flushing would be useless
 

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go go kid

go go kid

Well-Known Member
how can it be N toxcity, if its organic soil grow, the only way you can get n toxicity is if your feeding them too much growing plant food. are you feeding her? you've not said
 
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biginjvpvn

Member
go go kid said:
how can it be N toxcity, if its organic soil grow, the only way you can get n toxicity is if your feeding them too much growing plant food. are you feeding her? you've not said
Click to expand...
No I'm not feeding anything, only fertilizers were tabs and just water.
Not sure if thats overwatering issues, 1.5L once a week.
What do you think can be the issue?
 
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biginjvpvn

Member
Hollatchaboy said:
What time of the cycle, did you take the pic?
Click to expand...
26 hours ago I gave them water+backtrex(dry, water-soluble powder with a large number of beneficial soil bacteria and root microbes) and pic was taken right before they were going to sleep and 7 days after last watering
 
Hollatchaboy

Hollatchaboy

Well-Known Member
biginjvpvn said:
26 hours ago I gave them water+backtrex(dry, water-soluble powder with a large number of beneficial soil bacteria and root microbes) and pic was taken right before they were going to sleep and 7 days after last watering
Click to expand...
I mean what part of the cycle? At lights on, in the middle, or just before lights off?
 
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biginjvpvn

Member

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Nutty sKunK

Nutty sKunK

Well-Known Member
biginjvpvn said:
End of week 4- Beg of week 5 @ 30 DLI
Critical 2.0 and CDLC

This is my second attempt for autoflowers with bitotabs line. This time Im using Silicium Flash.
Soil: Biobizz light mix
15L Fabric pots
Both tabs were placed around day 10-11 after they popped from soil.
RH- 65%, 0.7 kPa
Temperature - 24-25C
Watering 1.5L every week (I am worried of overwatering and ruining roots because soil seems moist when I check it after 3-4 days)
PH 6.3

The one with claws is closest to the fan and honestly I have no idea what caused clawing leaves.
Suspecting N toxicity.
But how do I fix N toxicity when growing organic? Flushing would be useless
Click to expand...
That little extra N at this stage of growth is fine!!

Shows you are on the limit and don’t add any feed for a week or two, watch old and new growth for sign N tox has stopped and not become deficient
 
Nutty sKunK

Nutty sKunK

Well-Known Member
biginjvpvn said:
hm, do you think that even 1.5 litres once a week is a lot?
Or may be not enough?
tbh i think backterias kinda helped
Click to expand...
Too infrequent. My seedlings get it every 3 days Then 2 in flower. It’s just the quantity that changes. You want to keep the soil in a happy range, not too wet or dry
 
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biginjvpvn

Member
Nutty sKunK said:
That little extra N at this stage of growth is fine!!

Shows you are on the limit and don’t add any feed for a week or two, watch old and new growth for sign N tox has stopped and not become deficient
Click to expand...
appreciate your input, mate. hopefully you're right!
Nutty sKunK said:
Too infrequent. My seedlings get it every 3 days Then 2 in flower. It’s just the quantity that changes. You want to keep the soil in a happy range, not too wet or dry
Click to expand...
noted, will see tomorrow or day after how is the soil.
 
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biginjvpvn

Member
biginjvpvn said:
appreciate your input, mate. hopefully you're right!

noted, will see tomorrow or day after how is the soil.
Click to expand...
photos taken before watering
thinking next watering to combine fertilizer Orgatrex(5-1-5) with beneficial soil bacterias
 

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