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  1.     
    #11
    Senior Member

    PURPLE Stems?

    are you giving the nutrients to the soil? or just foliar feeding? the micronutes are for the soil as well - and not sure why you added lime? my rule of thumb is don't add things unless there's a problem - how does the plant look in general? healthy? see if adding the nutes to the soil helps at all. My seedlings that I grow under a 4 tube fluoro setup all have red and purple stems but once transplanted outside they do great, and the color almost always fades - GL I don't know a whole lot but hope ur plant does better :jointsmile:
    check out my grow log:
    Greenatik\'s Vertical Coco Cab

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  3.     
    #12
    Senior Member

    PURPLE Stems?

    Lime is only bad for plants when it is overapplied or raises pH up out of range. However, 2 tablespoons in a party cup is WAY too much! Re-pot right away into something larger with fresh soil. If there is any lime left on the surface, scrape it off. Do a runoff pH check and adjust it if necessary.

    I would use caution watering in a micronute with that high Fe content at the strength the bottle recommends for lawns and shit, especially since you have the possible Ca overdose (from the lime) thing going on.

    The biggest reason IMHO to keep a quality micro supplement around in a soil grow is to help keep the plant from getting worse when you see that you have a nutrient uptake problem in the root zone, by foliar application, while you work on discovering the SOURCE of the problem, and fixing it.

    Since a correct one-part fertilizer appropriate for cannabis DOES contain micros, most soil growers won't have to add a micro supplement to their fert solution. Yours doesn't, so you'll need to do that, but go EASY on it! I would use less than the bottle recommends. That's a good chunk of iron in there!

  4.     
    #13
    Member

    PURPLE Stems?

    greenatik - The lime is used to increase Ph (more alkaline (Ph down more acidic)).

    Now, the reason for my limey foolishness is due to the Ph stick I bought. Even after those lime applications the Ph meter never moved: I checked it after heavy water, etc. and what a load of garbage. It still says my soil is from 6.5-7.0! My model is a "Rapitest Mini Ph Tester". I think I'm going to make another thread to warn others of this potential crop killer. Errrrr..:cursing:

    As for the plant itself, it shows no signs of getting better from the nutrient application - the lime must be doing it, so I'm off to re-pot the little bugger and hope for the best! My method will be to remove as much sooil as possible without touching the root ball, I hope all goes well. Thanks for the advice Stinky (you too greenatik). I had a feeling I fucked up on the liming. Regardless, I'll report back with how things are looking tomorrow. Thanks again Stinky.

  5.     
    #14
    Senior Member

    PURPLE Stems?

    the purple/red stems aren't a nitrogen-deficiency symptom ... the most common cause for that coloration is wide temperature swings, hot days, cool nights ... also commonly caused by phosphorous deficiency ... that can be caused by PH too acidic (low), locking out the phosphorous ... it's pretty much cosmetic, not a serious health problem ... :jointsmile:

  6.     
    #15
    Member

    PURPLE Stems?

    Thanks for the tip Reaper. I'm such a worry wart sometimes! But as for the plant- I transplanted it into a much larger pot that it will hopefully be able to stay in for the rest of the grow. It has a bed of Perlite then on top of that is a thin layer of earthwarm castings. The mix I used was as follows:

    1 part Pro-Mix Organic
    1 part Vermiculite
    1 Part Perlite
    1 Part Earthworm Castings
    NO Lime :thumbsup:

    The transplant went very smoothly and it looked like the plant could have used it anyway as the roots appeared to be approaching the point of being bound. I watered heavily to make sure there was good contact as well and I did NOT use ferts of any sort. I few questions while I'm at it..... Should I have used ferts? I foliar fed yesterday so keep that in mind. Also, I feel like I should have done a soil flush to really get out the lime. Should that have been done?

  7.     
    #16
    Senior Member

    PURPLE Stems?

    You SHOULD be okay with just fresh soil. BTW promix has lime in it, but it is measured at the factory to give a predictable pH and it's appropriate to a peat-based potting mix.

    There is a thread in the FAQs called why I shoudl re-pot and a sticky in basic about a continuous canopy- you should read those. Re-potting should always be to a SLIGHTLY larger pot, especially in a peat mix. It's all explained.

  8.     
    #17
    Member

    PURPLE Stems?

    So the plant has been slowly,very slowly recovering as green is starting to return to the main trunk, but not the stems. After two days of waiting (yesterday) I flushed the soil with 2x the amount of water they can hold and I finally got a water test kit that works. I got it at a pet store no less and here's the deal. My water Ph is at 6.5 while surprisingly my soil runoff is at 6.0-6.2. I have no idea how this could happen especially with that dolomitic lime I put in. It's supposed to raise my Ph, go figure. The numbers tell me to add more lime, but I can't understand doing that. Stinky, can you help and be my maiden in shining armour? Or anyone else for that matter?

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