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Potassium deficiency or... ?

labratlee

labratlee

Well-Known Member
Hey there guys,

would you say this is potassium difficiency or something else.
plant is 6 weeks old "think different" autoflower.
feeding, biobizz biobloom NPK 2-7-4. 2ml per ltr
growing in biobizz all mix soil.
temps range from 15 to 25c.
humidity is 40%-55%.

I'm wondering if I need to flush or more nutes.... Any ideas.

cheers
 
Dr. Who

Dr. Who

Well-Known Member
P is too high and the N is too low....

I see this all the time with Bio Bizz around here....

Upping the N may slow it down......Next time no Bloom nutes till week 3 after the the flip to 12/12!
 
vostok

vostok

Well-Known Member
I'd be potting her up, as rarely do any plants fall to seedset without dropping a few fans
 
labratlee

labratlee

Well-Known Member
Dr. Who said:
P is too high and the N is too low....

I see this all the time with Bio Bizz around here....

Upping the N may slow it down......Next time no Bloom nutes till week 3 after the the flip to 12/12!
Click to expand...
thankyou very much for that reply. I will treat the plant on that assumption. What would you do? Its an autoflower by the way... Its 7 weeks old about 4 to go I suspect. Is this to high p ant to low n gonn badly effect my yeild? Obviously being in soil problemp
Dr. Who said:
P is too high and the N is too low....

I see this all the time with Bio Bizz around here....

Upping the N may slow it down......Next time no Bloom nutes till week 3 after the the flip to 12/12!
Click to expand...
Nice one. Thankyou very much for that that is the most confident answer iv ever had lol.
Dr. Who said:
P is too high and the N is too low....

I see this all the time with Bio Bizz around here....

Upping the N may slow it down......Next time no Bloom nutes till week 3 after the the flip to 12/12!
Click to expand...
 
labratlee

labratlee

Well-Known Member
labratlee said:
thankyou very much for that reply. I will treat the plant on that assumption. What would you do? Its an autoflower by the way... Its 7 weeks old about 4 to go I suspect. Is this to high p ant to low n gonn badly effect my yeild? Obviously being in soil problemp

Nice one. Thankyou very much for that that is the most confident answer iv ever had lol.
Click to expand...
sorry, that all got a bit fucked up... I have to type blind on here because of the layout on my screen, i cant see what im typing.
 
Dr. Who

Dr. Who

Well-Known Member
I'll bet it's mostly the timing of your change to bloom nutes.....The P vs N in the ratio is a tic high and the N is low...
Use a Silica to help regulate P uptake....next time..
As far as yield goes......yeah you'll loose "potential" yield and a little actual.....Just don't up the P till week 3 after the flip and do it gently even to help....Like 1/2 veg and 1/2 bloom for another week then 1/4 veg and 3/4 bloom....Then let them have the bloom full strength till done.....That's what worked for the auto's I tested for a cpl of breeders......My first round was not good as they can be fussy feeders - They really didn't like the high P&K bloom foods.....The next run I did the "stepped" increase and was rewarded with good results - for auto's. You'll always get better results with synthetic ferts by not flipping to bloom for the stretch period, Photo's or Auto's.

Buds, It's too late to up pot and make a difference other then too much stress and loose yield....If the feed was balanced and you feed perfectly. That pot should have been ok....
I would say to use a bigger pot at the out set next time....I wouldn't repot auto's.....just use a bigger pot to start..and feed carefully.

Doc
 
W

wiethe20

Well-Known Member
Dr. Who said:
WOW,,that chart is like the first "chart" I have seen actually WORTH looking at! Still though,,,,,it could be better as some things will still be confused as another...
Click to expand...
Oh I know, I've pulled hair out trying to figure things out and still looking at that chart until my eyes got stuck:shock:
 
Dr. Who

Dr. Who

Well-Known Member
wiethe20 said:
Oh I know, I've pulled hair out trying to figure things out and still looking at that chart until my eyes got stuck:shock:
Click to expand...
After time all it takes is a look......there was a post a week or so ago.....The OP had some Iron def coming on strong.....It can be mistaken for several different things if your not familiar with it....I forget what all others said.....But no doubt about it, it was Ir def.

I see things wrong with plants everywhere I go.....Malls, stores, banks, etc. The wife hates it when I stop at a plant and then ask who cares for it and make suggestions.......LOL

Doc
 
polishpollack

polishpollack

Well-Known Member
potting up should be to something large, like a 5 gallon bucket, 20 liters or more, in my opinion. also, if that soil you're using already has fert to it, you probably don't need more, at least for much of the grow. I think you have phosphorus toxicity, too much P. I don't know if adding N will change anything for the better. You can try it and see what happens.
 
labratlee

labratlee

Well-Known Member
Dr. Who said:
I'll bet it's mostly the timing of your change to bloom nutes.....The P vs N in the ratio is a tic high and the N is low...
Use a Silica to help regulate P uptake....next time..
As far as yield goes......yeah you'll loose "potential" yield and a little actual.....Just don't up the P till week 3 after the flip and do it gently even to help....Like 1/2 veg and 1/2 bloom for another week then 1/4 veg and 3/4 bloom....Then let them have the bloom full strength till done.....That's what worked for the auto's I tested for a cpl of breeders......My first round was not good as they can be fussy feeders - They really didn't like the high P&K bloom foods.....The next run I did the "stepped" increase and was rewarded with good results - for auto's. You'll always get better results with synthetic ferts by not flipping to bloom for the stretch period, Photo's or Auto's.

Buds, It's too late to up pot and make a difference other then too much stress and loose yield....If the feed was balanced and you feed perfectly. That pot should have been ok....
I would say to use a bigger pot at the out set next time....I wouldn't repot auto's.....just use a bigger pot to start..and feed carefully.

Doc
Click to expand...
Cheers

I really appreciate your help. Doc,
polishpollack said:
potting up should be to something large, like a 5 gallon bucket, 20 liters or more, in my opinion. also, if that soil you're using already has fert to it, you probably don't need more, at least for much of the grow. I think you have phosphorus toxicity, too much P. I don't know if adding N will change anything for the better. You can try it and see what happens.
Click to expand...
what about a flush then? Cheers
 
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