I know one of you can solve this one (pics and info included)

[stoned teacher]

Thanks in advance

Right now going soil organic. Pro mix with some lime(don't think it was dolomite, it was not real fine grained, more like very small pellets), bone and blood, the bigger one is on day 19 of flowering, the little one is around day 9ish. Feeding Foxfarm big bloom for early flowering as I'm pretty much sticking with Bog's recipe. Been ph balancing my h2o at about 6.5-6.6. Here's the pics. Hopefully the pictures get accross the yellowing of the leaves, but wih green still striped into it...

 

[Blackmelo]

hiya stoned,
what you are looking at is a definite deficiency. Now it might be that a wrong ph is locking out an element but you reckon your ph is not the problem.

It looks like your plants are lacking iron. Hmm, normally a nute should not lack iron. Any thoughts why your plants might be lacking iron?

 

[stoned teacher]

Thanks ...I don't know why this could be. I have a few plants right next to it that are from the same batch that I mixed up soil for, put into flower at the same time, and is also on the same feeding schedule, and they're fine. I'm guessing the foxfarm bigbloom has iron in it? I was going to switch over to Pure Blend bloom shortly.

I haven't tested the PH of the water that comes out of the plant. Should I feed a little more to those plants with the deficiency or focus on PH?

Thinking more about it, I made a big batch of water with the foxfarm nutes in it but watered it down because a few of the plants right next to it (from the same batch of GOOD bagseeds) were us starting o sho signs of nute burn, so I watered it down compared to what BOG recommended in his recipe. Should I give these ladies a healthy feeding and hope for the best?

Thanks again for the wisdom!

 

[sproutco]

Pro mix with some lime...Been ph balancing my h2o at about 6.5-6.6.

>Promix contains lime already so you have to use care when adding extra or your ph will get too high

>optimum ph in soilless mixes is 5.6 to 6.2 so you should adjust your fert water to about 5.8 (promix plus a few organic nutrients does not equal soil grow...it would still be considered soilless

>dolomite lime should be powdered and not pelletized

>you have a lack of micronutrients from the look of the new growth; this could be from the high ph or you need to add some

>seaweed provides an organic source of micronutrients if organics is your thing

>Are you allowing the containers to dry out some between waterings? Overwatering can cause micro problems

>Check your roots for root rot. Pay special attention to the tips to see if they are brown or black; You can slide a plant out of the pot for inspection and cause no harm if your gentle

>use caution and not apply too much phosphorus because this can cause micro problems

 

[stoned teacher]

Wow I had no idea that my mix would be considered soilless....I let it dry out pretty well before watering again. I made that misake in my first few grows and have found that to be the easiest mistake to make.....I transplanted these plants into bigger pots recently, so I'm fearful of taking out the plant to look at roots, but like I said, i let it get pretty dry before I rewater.

I guess next watering I'll drop the PH lower and give it a lil more nutes, maybe add a litle pure blend bloom to the batch I already have made up because I know that has all the micronutrients in it. But of course I'll also try to find some happy medium without overferting.

Yeah the lime I found didn't call itself dolomite lime, just garden lime. I needed it in a pinch, went to a few local shops and thats all I could find.

Thanks for he help....this sound OK?

 

[sproutco]

That sounds okay. Remember not to add too much phosphorus.

Sometimes you can find micronutrient mixes without really anything else in there. You want iron, copper, zinc, manganese, boron, and molybdenum. I have found bottles of stuff like this at local garden centers under the name like extra iron. When you look on the bottle you see it contains more micros than just iron. Stem is an old favorite. Stem stands for soluble trace element mix. It is usually applied once to correct problems. http://www.scottsprohort.com/_documents/tech_sheets/H4078STEM.pdf

Here is another example of what you might find at a garden center:

CHELATED GENERAL PURPOSE MINOR ELEMENT SPRAY
CONTAINS: Iron 2.75%, Manganese 1.00%, Zinc 0.50%, Magnesium 0.50%, Copper 0.25%, and Sulfur 3.8%. USE ON: Flowers, Shrubs, Trees, Vegetables and Lawns. TO CONTROL: Minor Element Deficiencies, yellowing of foliage, etc. NOTE: Deficiency symptoms can be an indication of improper soil pH. RATE: Foliar; 1 Tbs./gal. Drench; 1 oz./100 sq.ft. Lawns; 1 pt./1,000 sq. ft. APPLICATION: Mix with water. Apply as a drenching spray.
PACKED:
12xPt. - #01932
12xQt. - #01933,
4xGl. - #01934, and
2x2.5 Gallon - #23418.
http://www.southernag.com/fertilizers-l&g.htm

You can see that one does not contain boron and molybdenum like the stem. So you will have to hunt down something like this the best you can if you want fast action.

 

[stoned teacher]

Awesome thanks for the help. I'll look kfor something like that, but otherwise should be fine with a good ferting....watching the phosphorous of course....

If I may ask, if using promix isn't a soil mix, what is? When buying promix, I thought I was buying soil????

 

[stoned teacher]

HOLY MOLY ...I couldn't find the stuff that had just micro nutrients in it, so I gave it a medium/heavy feeding ph'd at 5.7 with a lil extra seaweed in it. This time I tested the water that came out of the bottom (when pouring in 5.7 ph'd water) and it came out OVER 8! Just got to do it to one plant then lights went off, so I'm going to give all my plants a big bath in 5.7 in 12 hours when the lights come back on. I had no idea ph could creep up that quick. I'm almost thinking I should lower the ph of the water I'm feeding it even more to counteract this high ph coming out.

Thanks again for the advice everyone.

Lesson learned.....I'm going to check the ph of water coming out of the bottom of my planters every time I water for now on (though I am switching to hydro soon....although seedlings will always be in soil)....

 

[sproutco]

You should really use distilled water for doing your soil testing. Directions are below in my signature.

 

[stoned teacher]

Yeah I read that. I will for now on.....but if I'm putting in water with a known ph and get out water with a much higher ph, aren't I correct in figuring out that there's a problem there whether it was distllled or not?

 

[sproutco]

That sounds like pretty good logic. You may have overlimed.

 

[sproutco]

HOLY MOLY ...I couldn't find the stuff that had just micro nutrients in it,

Fertilome makes a micronutrient iron liquid plus other micros. Find the dealer where you live and give them a call. http://www.fertilome.com/dealerLocator_main.asp

 

[stoned teacher]

Guess so. thanks so much again for your help and sharing your expertise. I love learning almost as much as I love smoking weed!

 

[sproutco]

Fertilome makes a micronutrient iron liquid plus other micros. Find the dealer where you live and give them a call. http://www.fertilome.com/dealerLocator_main.asp

$6 a pint

 

[stoned teacher]

Only one in my state is faaar away, but I'll worry about the specific nutrients once I get ph under control. I have the seaweed now and I know my pure blend bloom has all the micro nutes in it, so hopefully getting ph under control will ake care of my probs.

I'll be sure to update once I see some change, hopefully a positive one

 

[glock23]

Good luck! Interesting read, and I'm glad you figured it out teach. Definitely sounds like too much lime. Your logic about the runoff was flawless too.

 

[stoned teacher]

Just a word on the lime used here because I've done some searches and found that hydrated lime is super strong and dangerous. The bag I used is called "Epsoma (brand name) Garden Lime". ON the back of the bag it states that it has calcium and magnesium (as well as other elements that have calcium and magneisum in it). It states that it's safer than hydrated lime, and also calls itself dolomitic lime, though it's pelletized. I'm praying it isn't somehow of the strenght of hydraed lime, because I just couldn't get the ph of the water pouring out of the bottom to lower and have read how strong that suff is. Whatever happens, I'm going to have to wait a week or so now to do anything else because i just gave all of my plants a healthy feeding until water ran out of the bottom, so I worry that more adjustments now would bring on overfeeding. Wish me and my ladies luck.

 

[sproutco]

You don't want pelletized dolomite...you want powdered. You can get a 50 pound bag for $4 at Lowes or Home depot. I think the pelletized lime will give you little pockets of lime in the soil which is undesirable.