Possible phos def and light burn?

Discussion in 'Growing Organic Marijuana' started by Steelheader3430, Apr 6, 2014.

  1. #1 Steelheader3430, Apr 6, 2014
    Last edited by a moderator: Apr 6, 2014
    My bodhi, appy thunderfuck are showing some problems. These started after I put a hps running vert in my tent. I've got a 4x4 and 1000 watt light. I've since put my hood in but the leaves continue to get worse. I'm running organic living soil and feeding the revs flowering tea.

    I'm about 20 days into flower but they seem to be about 5 days in due to 40 degree nights in the tent. I've got my temps up 71-80 night and day. I haven't supplemented any cal/mg. image.jpg some of the top sides of the fan leave stems have turned purple. I'm not really concerned due to temps, just thought I would add that. Any thoughts/advice is greatly appreciated.
     

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  2. How are you applying that "flowering tea"?

    How do you determine when it's time to water?

    How close are the lights to the tops of the plants?
     
  3. Soil drench. When the pots are light. And the light is about 16 inches above the tops. The damaged leaves are on the lower mid part of the plants.
     
  4. Is this one of those mixes that's "spiked" or "layered"?

    It's obviously stressed by something. I'd back that light off some until you get it figured out. 600W is plenty of light in a 4'x4' area at that height. I'd stop applying teas as well. You may over stimulating the soil microbes. Plain water for a while...

    Why would you need to supplement with cal/mg? Is there no source for these nutrients in your soil mix? Sorry, I'm not familiar with the Rev's work, the tea or the soil (if the soil's his recipe).

    Can you possibly get another shot from the top of the plants, but a bit more clear?

    Hittin' the hay. Later on...
     
  5. is this the tea you are brewing?
    1396769561344.jpg

    Twas Ever Thus!
     
  6. #7 waktoo, Apr 6, 2014
    Last edited: Apr 6, 2014
    Jeebus, I hope not!
     
  7. well you have been over watering (wrinkles on leaves) and how big are those pots?
     
  8. #9 Steelheader3430, Apr 6, 2014
    Last edited by a moderator: Apr 6, 2014
    No spikes in my soil. Just a basic soil rock dust, crab, alfalfa, neem, kelp. A few other things. Yes that is the tea I've been feeding. Is that bad? This is my second grow and first run with organics.
     
  9. Sorry, 5 gallon pots. I'm glad rollitup broke down, pushed me to get out and meet new people.
     
  10. OK...
     
    If your sure that you're NOT overwatering, how often were you using that tea?
     
  11. #12 Steelheader3430, Apr 6, 2014
    Last edited by a moderator: Apr 6, 2014
    Once a week diluted with 3 parts water. What is the concern with the tea itself? I had overwatered in the past, during veg. I've got 2 males that weren't singed by the light. I put them outside and they've only gotten rain watered. They look perfect. I will cut out the tea for a while.
     
  12. #13 waktoo, Apr 6, 2014
    Last edited: Apr 6, 2014
    Dude, pay attention to what you observed with the males that were moved outside...
     
    Here's my take on the "tea"...
     
    First of all, contrary to what you may have learned from cannabis profiteers like the Rev', "teas" are NOT for providing nutrients for the plant.  They are for multiplying soil microbes to apply to the root zone where they can cycle the nutrients THAT ARE ALREADY PRESENT in the soil that you mixed.  And from your short description, it sounds as if you have a very good soil mix.  While microbial teas are a good thing to use sometimes, like maybe after your first transplant or mixing a batch of soil, they are WAY overused IMO, and can actually be detrimental to a grow, especially if brewed incorrectly.  This recipe is a VERY bad one, IMO.  Here's why...
     
    Disregarding all the crap that's added to it to provide nutrients, it IS NOT being brewed long enough AFTER the EWC is added to the brew.  Frankly, I can't surmise why in the hell he'd bother brewing all of that stuff together prior to adding the EWC in the first place.  24 hours of brew time results in a bacterially dominated tea, with very little fungi present (as bacteria tend to dine on fungal mycelium in teas), and hardly any protozoa (ciliates, flagellates, amoeba).  Protozoa are extremely important in have in your teas, because they finish the process of nutrient cycling.  But these do not begin to multiply rapidly until about 36 hours of brewing time.
     
    Bacteria (and fungi) start the nutrient cycle by just doing their thing, breaking down (eating) organic materials.  This process is referred to as immobilization.  Now until bacterium either die or are consumed by other members of the soil food web (there are many), those minerals that they've incorporated into their bodies will remain there, unavailable for uptake by plants.  This is where protozoa come into the equation, because they consume bacterium as their major food source.  But they actually excrete 40-60% (?) of the mineral content absorbed from consuming the bacteria.  These excreted minerals are now in a form that is usable by the plant, or can be adsorbed onto the CEC of the soil.  This process is called remineralization.
     
    So with a lil' deductive reasoning, I would propose that this is what's wrong with your plants...
     
    You've been giving them teas that are concentrated with bacteria (as well as nutrients that you don't need), and contain very little protozoa.  The bacteria are working hard, but locking up the nutrients and making them unavailable to the plant.  While I'm sure that you have protozoa present in your soil, they can't keep up with all the bacteria that you keep adding.
     
    Quit using teas altogether.  You don't need them.  The improved health of your outside males is a testament to this.  Water your indoor girls with plain water, let those protozoa catch up and balance out the bacterial population, and I would say you'll see improvement within two weeks.  Pay attention to the new growth, the old stuff most likely will not improve in overall appearance.  And don't forget to back that light off.  About a foot I'd say, until you start to notice improvement.  And then lower to about 2'.  That's a lot of light for that small a space.
     
    BTW, I own a microscope, just like the Rev' does.  Difference is I know what I'm looking at...
     
  13. Thanks waktoo! I thought the process seemed strange but decided to trust it. Ok I'll take your advice.
     
  14. Sweet man. Stick around, there's LOTS to learn here.

    Keep us posted with the progress, if you would. Welcome to GCO.
     
  15. Yeah man I'll definitely hang out, and update. I'll see if I still have my soil mix laying around. 
     
  16. #17 Steelheader3430, Apr 6, 2014
    Last edited by a moderator: Apr 6, 2014
    soil mix is.
     
    1/3 compost. consisting of 2/3 ewc and 1/3 oly fish compost
    1/3 sphagnum peat which was cut with 1/3 part coco
    1/3 aeration. I used a combo of 2/3 volcanic rock and 1/3 rice hulls
     
    Per cu ft. 4-5 cups rock dust (4x glacial, 1x bentonite, 1x powdered oyster shell, 1x basalt
    1/2 cup neem meal, 1/2 cup crab shell, 1/2 cup kelp meal, 1/2 cup gypsum and a little alfalfa meal.
     
    Edit: The only thing I use thats not registered organic is my molasses. 
     
  17. Very good esplainin Waktoo.
    And extra points for not bashing the rev too hard.
    This is funny that this cropped up today. I was looking at that book and realizing how much organic knowledge I've gained from the city in two years I've been here.
    I used to think the book was ok.
    lmfao.
    Op start a journal in the Organics section and the blades here will help you get it right.:D

    Twas Ever Thus!
     
  18. Hey guys I've been away for a while house shopping shut down my grow. Still not back at it yet just put a bid on a home yesterday. I tested my soil and k was very low and p was non existent. I just used the home tester but it gave me an idea of the problem. Weak soil. I re-amended the soil and should be in better shape once I get going again.
     

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