Yellowing leafs and curling or what. With pics

cuvintenoi · #1 (**permalink**) 02-13-2008, 10:11 AM

250W HPS
5 weeks old
good Ph in the water and in the soil
The leafs are yellowing and some are curling like in the picture
Maybe is some nutrient deficiencies

joxter · #2 (**permalink**) 02-13-2008, 11:56 AM

what kind of soil is that?

amsterdamage · #3 (**permalink**) 02-13-2008, 12:35 PM

Looks like nutes or ph to me, are you sure you haven't over-fed them?

Also, you're using HPS for veg. it might pay to add some CFL's to give them some blue light.
But I don't think this is causing the problem you're seeing here.

What's the temperature like? and what kind of soil are you growing in??

cuvintenoi · #4 (**permalink**) 02-13-2008, 08:45 PM

22 degrees Celsius is the temperature, 40-50 % humidity
The soil is normal flower soil with 5,5 Ph
Here this is the best soil that i can find
The water used for the plants is not in the good Ph range. I resolve this problem with 1ml vinegar per 2liter of water

SmknVTEC · #5 (**permalink**) 02-13-2008, 10:05 PM

Have you fed it yet?

cuvintenoi · #6 (**permalink**) 02-14-2008, 09:03 AM

I add nutrient to the water just 2 days ago
I transplanted them about a week ago and I let time to them to recover

joxter · #7 (**permalink**) 02-14-2008, 09:59 AM

to me it looks like a Ph issue. but thats just my educated guess.

SmknVTEC · #8 (**permalink**) 02-15-2008, 08:27 AM

pH 5 for soil is too low. It should be between 6.2-6.8 for soil and run-off.

joxter · #9 (**permalink**) 02-15-2008, 09:46 AM

Quote:

Originally Posted by SmknVTEC

pH 5 for soil is too low. It should be between 6.2-6.8 for soil and run-off.

isn't 6.2 just a tad low as well? i thought i read somewhere that is was 6.4-6.8? maybe not, i don't know, i quit growing in soil, i can't do it. coco all the way.

Kazamere · #10 (**permalink**) 02-15-2008, 11:32 AM

I dont see any perlite in that soil. There may be not enough oxygen getting to the roots, and they may be sitting in water rotting. Also I dont know if vinegar provides a lasting ph change.

SmknVTEC · #11 (**permalink**) 02-18-2008, 07:36 AM

Quote:

Originally Posted by joxter

isn't 6.2 just a tad low as well? .

Not usually, 6.2-6.8 should be fine for most.

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#2 (permalink) 02-13-2008, 11:56 AM
joxter ahh, medication Join Date: May 2007 Location: NW Posts: 806	what kind of soil is that? __________________ <--- MMJ one of my new set ups! http://forum.grasscity.com/general-i...new-setup.html check out my journal if ya get a chance, http://forum.grasscity.com/grow-jour...ower-room.html

#3 (permalink) 02-13-2008, 12:35 PM
amsterdamage Debate, Demand, Legalize! Join Date: Sep 2007 Location: ATLANTA! Posts: 4,553	Looks like nutes or ph to me, are you sure you haven't over-fed them? Also, you're using HPS for veg. it might pay to add some CFL's to give them some blue light. But I don't think this is causing the problem you're seeing here. What's the temperature like? and what kind of soil are you growing in?? __________________

#4 (permalink) 02-13-2008, 08:45 PM
cuvintenoi Registered User Join Date: Jul 2007 Posts: 11	22 degrees Celsius is the temperature, 40-50 % humidity The soil is normal flower soil with 5,5 Ph Here this is the best soil that i can find The water used for the plants is not in the good Ph range. I resolve this problem with 1ml vinegar per 2liter of water

#5 (permalink) 02-13-2008, 10:05 PM
SmknVTEC Moderator Extraordinaire Join Date: May 2003 Location: Tornado Alley Posts: 8,084	Have you fed it yet? __________________ "I build cars for young men that only old men can afford"- Enzo Ferrari (1898-1988) LED Thread PGAMG Thread MG vs. Generic Soil Current and Legit Seedbanks GC Forum Rules

#6 (permalink) 02-14-2008, 09:03 AM
cuvintenoi Registered User Join Date: Jul 2007 Posts: 11	I add nutrient to the water just 2 days ago I transplanted them about a week ago and I let time to them to recover

#7 (permalink) 02-14-2008, 09:59 AM
joxter ahh, medication Join Date: May 2007 Location: NW Posts: 806	to me it looks like a Ph issue. but thats just my educated guess. __________________ <--- MMJ one of my new set ups! http://forum.grasscity.com/general-i...new-setup.html check out my journal if ya get a chance, http://forum.grasscity.com/grow-jour...ower-room.html

#8 (permalink) 02-15-2008, 08:27 AM
SmknVTEC Moderator Extraordinaire Join Date: May 2003 Location: Tornado Alley Posts: 8,084	pH 5 for soil is too low. It should be between 6.2-6.8 for soil and run-off. __________________ "I build cars for young men that only old men can afford"- Enzo Ferrari (1898-1988) LED Thread PGAMG Thread MG vs. Generic Soil Current and Legit Seedbanks GC Forum Rules

#10 (permalink) 02-15-2008, 11:32 AM
Kazamere Registered User Join Date: Jan 2008 Posts: 88	I dont see any perlite in that soil. There may be not enough oxygen getting to the roots, and they may be sitting in water rotting. Also I dont know if vinegar provides a lasting ph change.

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