Is this a Sulfur problem? Purple leaf stems

[mrjagtara]

Hi All,

I am 4 weeks into my grow and the last two weeks I've been noticing the leaves between the veins have some lime green coloring, the leaf stems have purple bleeding in (see the pic below) and the base of the main stem is starting to look like more like wood. It's getting shiny and rough like a tree seedling would. While it's not serious and seems to be in the early stages, I don't want to let it get out of hand and lose them.

I have a copy of the Marijuana Horticulture Indoor/Outdoor Medical Growers Bible by Jorge Cervantes. The nutrients section has depictions and descriptions of some common issues and from what I've read, a sulfur problem is causing the soil ph to get a little out of whack.

Just a note before I start, I was NOT using nutrients when this started

Here's my regimen:

- I water plants a couple of hours after lights on using tap water, a 10-15-10 nutrient mix at half strength. The nutrient mix also contains trace micronutrients Iron, Manganese and Zinc which I read was also good for them because many mediums lack them.

- I am on a 19/5 schedule using 6-23w CFL 5000K bulbs just inches away. Here's my grow journal with shots of my homemade rig and the babies.

- Soil is Organics Vigoro. It's available locally and I read a few forums where people have used it seedling to harvest so that's what I went with.

Today I started using distilled water with my mix. I don't drink the tap water here, it's very drinkable but probably not good for my babies. It was probably a stupid idea to feed it to my babies but I did.

Am I on the right track? Or am I going in the wrong direction? Please help me out here, I want to correct the issue so they don't suffer.

 

[sandiegojack2]

Magnesius deficiency......jack had the same don't wait too long epsom salt's (horticultural grade) 1 teaspoon per gallon of water pH'd ans foliar spray in the am never spray anything near light's out! (mold) and then use 1 tablespoon per gallon of water when you water Ph'd...jack

 

[Slipon]

View attachment 2220796


½ a kilo .. cost me like 12$ at the local Wellness Shop (drug store did`t have it fish/animal shop did`t have it)

did just make my fist watering ..

how long time schould I reccon ther will go before I can see any signs (that is of course if this is my problem aswell ?)


my leaves also had this problem in Veg .. did a repot and it did go away more or less .. still have purple steams a bit .. now I got it agin .. and is in 3th week of flowering .. in 7 gallons pots .. so dont want to repot .. so hopefully Epsom salt will help ?

note: my small leaves (between the buds) is curling and dont look to helthy (sulfur ?)

 

[sandiegojack2]

Look up MG deficiency....there is not a doubt that that is what it is my brother or I certainly wouldn't have advised you to do this! jack...The purple stem's could...be a precurrser of the deficiency...but...It could also be genetic's...so no worry about that you will see the improvement on the rate it is growing ie faster..and the new growth will not show yellow between the vein's on the leave's! This will slow down progress....The problem took 3-5 week's to show and you can't fix that in a day...plant's are good at assimilating nute's through the stomata when necessary! (The pore's under the leaf where aspiration take's place...) remember a little goe's a long way and apply sparingly as any aplication as you can allway's kick it up but a burn is a serious issue!! don't force your plant's slow down enjoy the grow and don't rush...the benefit's are many! wishing you the best! jack...do a little reading on this....there are different application method's...jack

 

[alonefarmer420]

Also some strains have purple stems, it could be genetics or it could actually be a deficiency.

 

[JASON79]

View attachment 2220796


½ a kilo .. cost me like 12$ at the local Wellness Shop (drug store did`t have it fish/animal shop did`t have it)

did just make my fist watering ..

how long time schould I reccon ther will go before I can see any signs (that is of course if this is my problem aswell ?)


my leaves also had this problem in Veg .. did a repot and it did go away more or less .. still have purple steams a bit .. now I got it agin .. and is in 3th week of flowering .. in 7 gallons pots .. so dont want to repot .. so hopefully Epsom salt will help ?

note: my small leaves (between the buds) is curling and dont look to helthy (sulfur ?)

when you have magnesius deficiency your leaves will start to go yellow but the vain (stems on the under side of the leaf will stay green and the rest will turn yellow)

your plant need some extra magnesius (epson salt) when you turn them over to flower
but remember that epson salt has a very high ec level and more than 1 teaspoon per 10ltrs could be to much with nutes
and stress your plants
dissolve in small amount of boiling water add to more cold water and then to the water/nutes

hope this helps

 

[Slipon]

a littel reading:

http://www.saltworks.us/salt_info/epsom-uses-benefits.asp

explain a littel of what epsom salt is and what the use of it are ..
in the bottom of the pages ther is a few lines about plants .. note: for plants in general ..

but do give a good picture of what it is and what it do ..

 

[mrjagtara]

View attachment 2220796


½ a kilo .. cost me like 12$ at the local Wellness Shop (drug store did`t have it fish/animal shop did`t have it)

did just make my fist watering ..

how long time schould I reccon ther will go before I can see any signs (that is of course if this is my problem aswell ?)


my leaves also had this problem in Veg .. did a repot and it did go away more or less .. still have purple steams a bit .. now I got it agin .. and is in 3th week of flowering .. in 7 gallons pots .. so dont want to repot .. so hopefully Epsom salt will help ?

note: my small leaves (between the buds) is curling and dont look to helthy (sulfur ?)

Thanks but post the problem you're having in a seperate thread dude, don't hijack mine. I don't know who people are responding to.

 

[mrjagtara]

Look up MG deficiency....there is not a doubt that that is what it is my brother or I certainly wouldn't have advised you to do this! jack...The purple stem's could...be a precurrser of the deficiency...but...It could also be genetic's...so no worry about that you will see the improvement on the rate it is growing ie faster..and the new growth will not show yellow between the vein's on the leave's! This will slow down progress....The problem took 3-5 week's to show and you can't fix that in a day...plant's are good at assimilating nute's through the stomata when necessary! (The pore's under the leaf where aspiration take's place...) remember a little goe's a long way and apply sparingly as any aplication as you can allway's kick it up but a burn is a serious issue!! don't force your plant's slow down enjoy the grow and don't rush...the benefit's are many! wishing you the best! jack...do a little reading on this....there are different application method's...jack

Thanks for the advice! However, I went and read up on Magnesium deficiency and it's not describing my conditions at all. I don't have yellowing leaf tips, dark green veins, dark spots or any of the other symptoms. It's like a lime green between the veins instead of a deep green like I would expect. It's hard to catch in a picture but it's easy to see when they're under the light. The only thing I could get to show in the picture is the purple stem. The edges of the leaves near the leaf stem are kind of wrinkled and this same green color. Any other opinions?

 

[sandiegojack2]

read-on my brother...

 

[mrjagtara]

read-on my brother...

Thanks, I'm definitely doing some reading. I also pulled a water quality report for my city and it's very high in copper and sodium. While it falls in line with safe drinking water, the high levels of copper and sodium can't be good for the plants. I'll definitely be using distilled water from this point forward. I found out that you can add 1/8 tsp. of baking soda (8 pH) to a gallon of distilled water and it becomes pH neutral. I think I'm going to replant and use strictly distilled water in my mix from this point forward. I think it's early on enough that I can reverse it without any perm damage...I hope anyway!

Any one else have some input here?

TIA,
Mr. J

 

[lorddolaphine]

i had the same problem but much worse I was using this cheap potting soil called vigaro cuz I was unable to get my scotts and peat moss like I usually use amongst other amendments. Any way I noticed that on all the plants that I planted in the vigaro had zebra stripes look awesome as hell by the way. Ive been growing on a semi industrial scale for a while about 5 years i been learning and growing small scale 2 to 3 rooms since I was a lil seedling we tlkin some 15 yr so stuff like this doesnt faze me. I first thought it was ph after going through the motions and realized I didnt know what it was. so I hit the internet which is very dangerous cuz no one knows what they tlkin boutits funny guys quoting strait out of books or even worse from some forum its usually wrong or out of contents jst to sound smart lol. any way I figured I would lower the ph a little it was 7.1 so the nutrients would be more readily available then I proceeded to mix up some awesome organic ferts bat guano and other stuff I usually dont use until later on in flower. by the way plants were in veg about a month from clones three feet high. the problem went away in about a weak crazy I know. This is what I usually do with a problem I cant figure out least amount as possible boost immune system and your girls will take care of them self. By the way the light markings inbetween the veins didnt seem to affect the performance of the plants at all.