Should i transplant now in flowering?

[chankao]

Hi guys! Im from brazil, this is my first ever grow.
I am at day 48 from seed (3 weeks flowering) of an autoflower critical strain.
Im running a small grow tent big enough for a single plant.


Im using a soilless substrate (carolina soil + perlite) in a 11L (2.9 gallons) pot, but i didn´t make a great job filling it well, so maybe im using 8 or 9 liters of the space available.
The plant was growing well for most of the time now, but, now ive reached a critical point of not understanding what to do.
The Middle bottom leaves are most turning yellow (Maybe a N deficiency) and dieing.

The first picture is from last week.
The other pictures are from today.

I talked to my fertilizer supplier, and he told me this is a Nitrogen deficiency, mainly because the pot is too small for the plant (its a 11L-3 gallon pot).
So he adviced me to transplant it to a 20L (5+ gallon).

What should i do? Im really lost because i read all over the internet what you should never transplant on flowering, specially with auto flowers.
Whats the best advice here?

Thx a lot!

 

[Bluugrss]

Are you feeding her? If not...you should.
It most definitely is hungry for nitrogen.
I wouldn't transplant her.

 

[chankao]

hI Bluugrss, thx for the response.
Yes, im feeding her the provided schedule from the fertilizer supplier, but im not doing any kind of corrections, just following the table chart.
He also told me to make a nutrient flush with the current watering nuts, that could help as well.

 

[420Forever]

Hi guys! Im from brazil, this is my first ever grow.
I am at day 48 from seed (3 weeks flowering) of an autoflower critical strain.
Im running a small grow tent big enough for a single plant.


Im using a soilless substrate (carolina soil + perlite) in a 11L (2.9 gallons) pot, but i didn´t make a great job filling it well, so maybe im using 8 or 9 liters of the space available.
The plant was growing well for most of the time now, but, now ive reached a critical point of not understanding what to do.
The Middle bottom leaves are most turning yellow (Maybe a N deficiency) and dieing.

The first picture is from last week.
The other pictures are from today.

I talked to my fertilizer supplier, and he told me this is a Nitrogen deficiency, mainly because the pot is too small for the plant (its a 11L-3 gallon pot).
So he adviced me to transplant it to a 20L (5+ gallon).

What should i do? Im really lost because i read all over the internet what you should never transplant on flowering, specially with auto flowers.
Whats the best advice here?

Thx a lot!

heya @chankao and to afn! whatever u do, don't tranzplant u can alwayz top up the soil, with mebbe some worm castingz or blood meal for a N boost great commune here & anything u need, jus give a holler

ppp &

 

[Mañ'O'Green]

I had to look it up - Carolina Soil in Brazil is peat based. Peat soils have a tendency to move to the acid side on PH. Fertigate with balanced Flower formula nutrients PHed to 6.3

Tools can be expensive but some of them are more valuable to an indoor cannabis grower than others. You need a good PH soil probe to check the PH in the root zone. Get a Blue Lab Leap soil probe and meter or an Accurate 8 soil probe or the clone of it. Don't buy cheap ones they just do not work.

 

[Proph]

There is no such thing as a pot being too small. We grow autos in solo cups here all the time. The smaller the pot, the more often you have to feed and water. That's the only difference. He's trying to sell you things.. You definitely have a nitrogen issue.. But why is the question. It's time to check the basics.. Like ph and ppms.. A soil ph meter will tell you the ph of your medium. A ppm meter will tell you how much nutrient is sitting in the pot. The nitrogen def could be caused by a ph lock out or a nutrient lock out. What ph are ypu feeding at?

 

[chankao]

Mañ'O'Gree, you are exactly right!
I was checking my runoff, and realized that, even so i was putting in 6.5 PH, 6.0 was getting out, so the soil was very acidic. (had some nut burn on the tips), this happened like 2 weeks ago.

I started to water with a even higher PHto try to fix that, and although that worked it seemed kinda slow changing.
So, yesterday, to try to fix the plant, i flushed my plant with 6.3 PH and nutrients. I used like 4 liters of water.
So i watered 2 liters,waited for 10 min and watered again 2 liters, to try to clean off any residual nutrients and bad PH.

It seemed to have worked!
The runoff PH was now 6.2 (really close to the watering)
All the yellowing and dieing leaves are still yellow but i can see that are more alive and stiff, and not papery anymore.

I could tell the plant loved it and is showing growing signs.
The yellow leaves wont never come back to green right? I will have to base my opinion on new growth?

The bottomline is that, it really seems like a PH lockout and i pray that is only that! =D

Thx also to the others that helped me:
Proph, 420Forever

 

[Stylez2]

The yellow leaves will stay that way. eventually they will fall off.
Keep an eye on the growth above that. Best of luck.

 

[Django_TO]

Mañ'O'Gree, you are exactly right!
I was checking my runoff, and realized that, even so i was putting in 6.5 PH, 6.0 was getting out, so the soil was very acidic. (had some nut burn on the tips), this happened like 2 weeks ago.

I started to water with a even higher PHto try to fix that, and although that worked it seemed kinda slow changing.
So, yesterday, to try to fix the plant, i flushed my plant with 6.3 PH and nutrients. I used like 4 liters of water.
So i watered 2 liters,waited for 10 min and watered again 2 liters, to try to clean off any residual nutrients and bad PH.

It seemed to have worked!
The runoff PH was now 6.2 (really close to the watering)
All the yellowing and dieing leaves are still yellow but i can see that are more alive and stiff, and not papery anymore.

I could tell the plant loved it and is showing growing signs.
The yellow leaves wont never come back to green right? I will have to base my opinion on new growth?

The bottomline is that, it really seems like a PH lockout and i pray that is only that! =D

Thx also to the others that helped me:
Proph, 420Forever

I'm late to the party, but just want to welcome you to AFN. Bons cultivos