Light burn?

[ecuaodor_s]

Exactly when have you started using pk13/14 all way from seedling stage right through or what??

Since switching to 12/12. I was using the same brand's veg version up until then. This is the 4th week.

 

[Daino]

Pk13/14 is meant to be used for 1 week only around week 5 or so I don't think your plants symptoms are fried from your light I believe you have fried it with nute burn, are you not using a base nutrient for bloom using a constant pk of 13/14 from switch will cook your plant

 

[ecuaodor_s]

Pk13/14 is meant to be used for 1 week only around week 5 or so I don't think your plants symptoms are fried from your light I believe you have fried it with nute burn, are you not using a base nutrient for bloom using a constant pk of 13/14 from switch will cook your plant

but it says on bottle to start from 1st week of flower throughout till the end. I am confused

 

[Daino]

That light would do no damage at even 10 inches I am running 720w at like 12 with no sign of any kight stress it's the pk13/14 doing all your damage the only thing you can do now is stop using it immediately and start using a bloom base nutrient but even at that it may be too late, did you not read up how nutrient work or what should you be giving them, homework is needed bro study that shit it's the only way

 

[Daino]

Take picture of directions on the bottle post here, that's very strange because usually pk13/14 only needs to be used for a week because its mega high strenght

 

[ecuaodor_s]

That light would do no damage at even 10 inches I am running 720w at like 12 with no sign of any kight stress it's the pk13/14 doing all your damage the only thing you can do now is stop using it immediately and start using a bloom base nutrient but even at that it may be too late, did you not read up how nutrient work or what should you be giving them, homework is needed bro study that shit it's the only way

You might be onto something here. The problem started around the transition to flowering stage. I always assumed it was the light but it actually occurred to me that I also switched to this nutrient around the same time. Does it make sense though that only the top of the canopy is effected?

 

[Daino]

It will spread bro they look extremely stressed out and might not give you much smokable bud in the end and may be very harsh, 1st next watering you need to run plain water to try push some ofbthe excess p and k out because I'd say the roots are frying at 4 weeks of use, a year ago I experimented with pk13/14 from the canna line on 2 autos at half strenght for 4 weeks and fried the lot I'm amazed your plant in still standing so you need to flush pronto and get a standard basic bloom nutrient in there what size pot is that??

 

[ecuaodor_s]

Take picture of directions on the bottle post here, that's very strange because usually pk13/14 only needs to be used for a week because its mega high strenght

here

 

[Daino]

That's potassium and phosphorus toxicity and may have cause a lock out that's why she is yellowing because she isn't getting the basic amount she needs more like a supercharged amount and can't deal with it

 

[Daino]

That's very odd to have that on a bottle bro but like I said pk13/14 is very strong stuff and imo is your problem right now not lights

 

[ecuaodor_s]

That's very odd to have that on a bottle bro but like I said pk13/14 is very strong stuff and imo is your problem right now not lights

Thank you for your help. Today i gave her a liter of pure water. No nutrients. What's the best course of action now? I read about "flushing". Is that what I should do?

 

[Daino]

2 days of plain pH water you need a proper pH metre to stay on top of the pH all of the time, over the next 2 days try grab some bloom nutes canna terra flores is fairly cheap and very good all directions on the back, so flush for 2 days with plain water maybe even go 3 days to be sure you wash her out and then on the 4th day add nutes and when I say flush use 2 litres every watering because I'd say the roots are feeling that burn big time the leaves are scorched bro but she might make it with a small yield, this pic is canna pk13/14 but all are similar or so I though as you read you see the usage details for that level of p and k

 

[ecuaodor_s]

2 days of plain pH water you need a proper pH metre to stay on top of the pH all of the time, over the next 2 days try grab some bloom nutes canna terra flores is fairly cheap and very good all directions on the back, so flush for 2 days with plain water maybe even go 3 days to be sure you wash her out and then on the 4th day add nutes and when I say flush use 2 litres every watering because I'd say the roots are feeling that burn big time the leaves are scorched bro but she might make it with a small yield, this pic is canna pk13/14 but all are similar or so I though as you read you see the usage details for that level of p and k

Thanks so much!!! Will try and report back in a few days.

 

[Daino]

Thanks so much!!! Will try and report back in a few days.

No worries bro try not too stress out we all started somewhere and all have made our fair share of mistakes don't panic and just flush her good get some standard base nutes in there only bloom nutes I recommend canna very easy to use and very good once applied right yeah hit back in a few days give me some update on progress best of luck bro

 

[Billy the Mountain]

Useless? What do you prefer? Can you send an Amazon link if they carry it?

Yes, wildly inaccurate.

Apera is probably the best bang per buck for a quality pH meter.

I don't have a soil meter/probe and haven't ever had a reason to own one.

If you really, really, want to measure your soil pH, read up on doing a slurry test using a conventional pH meter.

 

[ProPheT 216]

Useless? What do you prefer? Can you send an Amazon link if they carry it?

Do you have a ph pen for testing mixed solution? If so Google a slurry test. Just put 1 ounce of your soil and once ounce of 7.0 water in a glass...mix well, pour out the water... leave the dirt. Now test to see soil ph and ec

 

[ecuaodor_s]

Do you have a ph pen for testing mixed solution? If so Google a slurry test. Just put 1 ounce of your soil and once ounce of 7.0 water in a glass...mix well, pour out the water... leave the dirt. Now test to see soil ph and ec

No that's the reason i asked for a link. I found one in my local shop for around 50$. I found on amazon similar prices i will look further. Will also google slurry test. Thank you!

 

[ProPheT 216]

Apera is worth the money as said above

 

[Moflow]

Just standard gardening soil. Nothing special. I water once a day around a liter and sometimes once in two days around 2 liters. Whenever the meter shows me still green but close to red.

Check these moisture meters out.
A few people have tested them and they work.

Sustee water probe review

https://sustee.jp/en/ So I hold a Professional Lurker membership card in my wallet and one day i was reading a thread and saw this post https://www.rollitup.org/t/i-think-they-dieing-from-root-bound.1065697/post-16639738 by MoFlow about a water probe i'd never seen before. It wasn't one of...

www.rollitup.org

 

[Moflow]

You need nitrogen.
Get a bottle of tomato food.