Help a guy out please...

[devilcowboy3]

Hello all... Me again. Having a problem with the crop. I dont know what it is. I am using a mix of Black Gold soils. All organic. Water is around 6ph. Under a 400w light about 20 inches to 24 inches off the canopy. They are in 5 gallon buckets. I use Humboldt Nutes all organic series. I think thats all the basics.
As you can see from the pictures, The stems are a deep purple. The leaves are turning white starting from the middle of the leave by the veins. There was no new growth for a little while til i went to the store...
I thought it was a Nitrogen and or Mag deficeincy so i got some magpro and bat shit ostexcuseme: from the store. That seemed to help a little bit.
Now there is new growth... it is green for a day or so, then purple streaks up and down... then deep purple. The new leaves are light green and never darken up some eventually bleaching out like mentioned before. It spreads across two strains in my room so i think its water, soil or nutes... Please give me your inputs... Peanut gallery ... OPEN SaYS ME DAMMIT:rasta:

devilcowboy3 Reviewed by devilcowboy3 on 02-09-2010. Help a guy out please... Hello all... Me again. Having a problem with the crop. I dont know what it is. I am using a mix of Black Gold soils. All organic. Water is around 6ph. Under a 400w light about 20 inches to 24 inches off the canopy. They are in 5 gallon buckets. I use Humboldt Nutes all organic series. I think thats all the basics. As you can see from the pictures, The stems are a deep purple. The leaves are turning white starting from the middle of the leave by the veins. There was no new growth for a little Rating: 5

[jakester]

I would flush, let em dry and repeat to see if you have some buildup issues. It looks like too much something or not enough something....I know big help I am.

[Faddenator]

Jake, you sure a flush is the best idea? I know you're usually right, but I thought deep purple stems was a phosphorus deficiency, so Im not sureflushing is the best idea. I believe phosphorus is easy to lock out as well, so maybe you want to bump that ph up to 6.5.

It could also be your temperature. too low and theyll go purp.

[WashougalWonder]

Jake, you sure a flush is the best idea? I know you're usually right, but I thought deep purple stems was a phosphorus deficiency, so Im not sureflushing is the best idea. I believe phosphorus is easy to lock out as well, so maybe you want to bump that ph up to 6.5.

It could also be your temperature. too low and theyll go purp.

I agree with both statements. Also consider IRON deficiency

[Rusty Trichome]

Might want to add more perlite to your potting mix next time. Especially if in 5 gallon buckets. They'll retain moisture and you'll risk root rot. I drill 1/2" holes in the sides of the bucket(s) to help with moisture control.

What's your day/night temps?

Do you know what that particular soil is buffered to? Mulches are generally buffered between 5.5 and 6.0ish. Potting mixes are generally buffered to 6.8 to 7.0ish. If using a mulch, you'll be chasing the ph till harvest.

Purpling of the stems and petioles can be from a few different things. PO4 defeniency, temperatures, and phenotype of the strain are the biggest sources. Some strains do have purple genetics buried in their past, and this expression can pop-up once in a while.

Careful with any magnesium product. Overuse can and will lock-out nutrient uptake. (possible cause of the additional purpling?)

All organic is soooo overrated, but that's likely for another thread. :thumbsup:

[jakester]

Jake, you sure a flush is the best idea? I know you're usually right, but I thought deep purple stems was a phosphorus deficiency, so Im not sureflushing is the best idea. I believe phosphorus is easy to lock out as well, so maybe you want to bump that ph up to 6.5.

It could also be your temperature. too low and theyll go purp.

Well, from what I understand, if the salts are built up to the point that the plants roots are not able to get what they need from the soil you would have all sorts of deficiencies. I usually recommend starting with a flush because it's the least likely thing to add to the problem. Most people who use nutrients in soil don't flush adequately fearing overwatering. I think a problem with soil and nutrients is that the PH swings too far. I know you are told that a target PH of 6.8 is best but that really means that from wet to dry your PH is swinging around that number. When you have excessive salts your electrical potential in the soil swings too wildly from your watering to dry out. So it will spend less time at the neutral range giving the plant time to absorb what it needs. If you flush out the salts to some degree you neutralize the swing range. Most people try to just look up the plant symptom and add what it needs but things are rarely that simple. A good flush and some time to dry out will tell you a lot about what the plant wants. Of course seeing the roots is also an important tool.

Just my take, I am probably going to be corrected by someone and I look forward to it.:thumbsup: I am here to learn.

[jakester]

All organic is soooo overrated, but that's likely for another thread. :thumbsup:

I am starting to agree with you. I have been doing organic gardening for years but it's not something I recommend to people indoors with little gardening experience. The perfect organic garden has fungus, bugs and life galore, not really a great philosophy in a closet. Organic gardeners outdoors plant 20-30% extra just to GIVE to the wildlife. If you have a space 2'X3'X8' to work with this is NOT going to be an option.

Keep it simple. Organic is more than just a style of garden product that you can purchase. 95% of growers would have better luck with a simple bag of MG.

[scrumby]

Looks cold to me, some strains don't like temps even just below 60 Fahrenheit.

[jakester]

Looks cold to me, some strains don't like temps even just below 60 Fahrenheit.

I just noticed he's in Wash. Could be right about the temps.

[Faddenator]

Well, from what I understand, if the salts are built up to the point that the plants roots are not able to get what they need from the soil you would have all sorts of deficiencies. I usually recommend starting with a flush because it's the least likely thing to add to the problem. Most people who use nutrients in soil don't flush adequately fearing overwatering. I think a problem with soil and nutrients is that the PH swings too far. I know you are told that a target PH of 6.8 is best but that really means that from wet to dry your PH is swinging around that number. When you have excessive salts your electrical potential in the soil swings too wildly from your watering to dry out. So it will spend less time at the neutral range giving the plant time to absorb what it needs. If you flush out the salts to some degree you neutralize the swing range. Most people try to just look up the plant symptom and add what it needs but things are rarely that simple. A good flush and some time to dry out will tell you a lot about what the plant wants. Of course seeing the roots is also an important tool.

Just my take, I am probably going to be corrected by someone and I look forward to it.:thumbsup: I am here to learn.

Very good point(s). I think I'm gonna go flush haha. haven't done so in a while, I wouldnt doubt If I got salts on salts in my soil.

Thanks for the reminder :jointsmile: