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4weeks flowering. Possible deficiency. Need advice

Discussion in 'Sick Plants and Problems' started by budmasterdank, Oct 11, 2014.

  1. #1 budmasterdank, Oct 11, 2014
    Last edited by a moderator: Oct 11, 2014
    Hey gc

    I currently have 3 flowering plant. I'm having a problem with my bigger one

    It's is a strawberry sativa
    Planted in 5gal smart pot
    With fox farm ocean forest and coco mixed together. With 45-50% perlite

    Using fox farms tiger bloom and rock nutrients bloom. I'm mixing both

    At 1tsp per gal tiger. Recommended is 2-3tsp per gal
    Rock is 4-6ml per gal recommended is 8-12ml per gal
    Also using rock nutrients resonator. At 2ml half strength or 4ml full strength

    The NPK for them is

    Tiger bloom 2-8-4
    Rock bloom 4-2-9
    Rock resinator 0-7-8

    The rock bloom also has cal and mag
    cal is 1.66%
    Mag is 0.59%

    I'm mixing both because it balances out plus the rock has the cal mag in it which tiger does not. But tiger have a lot of other micro Nutes

    Is it possible for the potassium levels to be to high and is locking out the cal. Not sure last watering befor this one I flushed with 3gal ph water. And I did that because I could see there was some type if issue.

    Here's a picture if what it's looking like over all plant looks great except this here.

    They are in 4x4 tent under 1000watts
    Temps stay Within range.

    ImageUploadedByGrasscity Forum1413041988.864907.jpg ImageUploadedByGrasscity Forum1413042011.980786.jpg ImageUploadedByGrasscity Forum1413042063.814120.jpg ImageUploadedByGrasscity Forum1413042090.630916.jpg ImageUploadedByGrasscity Forum1413042124.297543.jpg
    ImageUploadedByGrasscity Forum1413042159.097618.jpg ImageUploadedByGrasscity Forum1413042174.297482.jpg

    Hope the picture help. It's a bit hard to see with light on.

    Could really use the help

    I have floraclean should I flush with that when plant needs water next.

    Thank you for all the help.
     
  2. Looks like magnesium deficiency to me
     
  3. Magnesium. That makes sense. Could it also be a calcium and mag def.

    I'm thinking I have to much of a nutrient. That could be locking it out.

    I'm know a decent amount about plant in general I have a horticulture background. But I don't know everything and I'm still a beginner.
    This issue got me stumped

    The nutrient I'm using has .55% mag is tiger bloom
    And .59% is the rock nutes.
    I'm mixing both together at half strength.

    Now the rock Nutes have cal and mag in one. I will say I'm giving it a pretty decent load if P-K.

    I'm giving other 2 plants same amount dose of base Nutes but a bit less Of the rock Nutes resinator.
    About 2ml per gal vs 4ml

    Also not sure if 5gal smart pot is to small. The plant is pretty big and I'm hoping to get a good 4-8oz yield off of her. I know if I can figure out this little issue I got a month left and I'm home free. Otherwise if it continues to get worse or no better I will lose a decent amount of yield. But if 5gals isn't enough I can transplant to a 7. But I need to figure out this issue first.

    Any help is appricated.
     
  4. Looks like K deficit to me, but in smart pots are you mearuring ph? An accurate ph reading will always give you the answer you're looking for.
     
  5. I'm about to measure my ph now my lights are off. But I'm gonna get in there with a green tint light and should be no worries.
    I will get back with ph in just a few.

    But I'm loading it with a decent amount of P-K

    K-9 on my bloom fert but I mix tiger with rock so it's probally around 6-8%

    Plus 8% from my bloom booster.

    So if ph is off it won't matter how much I have in there it's won't uptake it.

    I'm ussaly good about my ph. Haven't checked in a bit tho.

    Ph of my water is always between 6.2-7.0 never over 7.0 never under 6.2
     
  6. It's just speculation without the proper information to diagnosis an issue.
     
  7. Found my problem my soil ph is way to high. It's runnin about 7.1-7.2 that will surly lock out what's is needed
     
  8. #8 mmman, Oct 12, 2014
    Last edited by a moderator: Oct 12, 2014
    That's why it's so important for folks to answer the questions on the form, it almost presents a resolution immediately. What was the ph of the water going in? Coming out above seven probably means it's a bit higher. Check out this form and you'll see what's lacking. Also, pictures with lights on were no help to me, all I could speculate on was the two leafs.
     
    I don't know what the ph should run in a batch (soil) that has coco? Coco used alone requires a 5.8 ph to be considered optimum.
     
    Plants could be deficit in Fe and Mn.
     
    Edit: http://boards.cannabis.com/attachments/plant-problems/281235d1325194867-brown-spots-some-twisted-leaves-some-tips-curled-down-phchart.jpg
     
  9. #9 keero, Oct 13, 2014
    Last edited by a moderator: Oct 13, 2014
    try to check the ppm out from your pots, to be sure that soil is not over or under fertilized[SIZE=14.3999996185303px] [/SIZE]
    [SIZE=14.3999996185303px]try to use if you can a osmotic water to test the [/SIZE]out coming[SIZE=14.3999996185303px] water[/SIZE]
     
  10. Ok so I flushed my soil with floraclean
    At a ph of 6.5. Tested soil ph yesterday and I going to test again today. If I need to water today I will check the ph and ppm of the runoff.
    I will also provide some clear pictures of plant and leaves. After the flush it looks to have gotten a bit better. The bud growth seemed a bit slow befor the flush now it seems to be coming back to normal I've seen a lot of new hairs emerging.

    I will get back with pictures and test results.

    Also the water I use is primo in 5 gal jugs actually contain minerals.

    There's calcium and magnesium. Not sure if it's available to the plants. But water does contain it

    I hope that it's not getting to much cal and mag from Nutes and water. But I believe it's kinda hard to over fertilize cal and mag.

    With high ph I was most likely locking out mag fe phos Zinc and copper.

    I will have more info in a few moments

    Thanks you for all the advice it's a great help and I really appreciate it.
    What ever I learn I pass on to the next person.
     
  11. Does the water you're using contain fluoride/salts at all? Usually it will be super low like 3-20ppms but either or is never good for your plants
     
  12. Nope I actually use store brought water in 5gal jugs that has minerals in it. No fluoride or clorine like city water. The ppm is 17.
    Soil ph is now testing 6.6-6.8
    Where befor flush is was throwing 7.2
    Plant looks better the leaves haven't gotten worse. In last couple days.
    I have about 2 weeks left befor harvest
     
  13. Says it contains sodium bicarbonate and sodium sulfate
     
  14. #14 CanadianOrganic, Oct 14, 2014
    Last edited by a moderator: Oct 14, 2014
    Hmm weird. Is it supposed to be spring water? Definitely salts, but have you been using it the whole grow? And if so have you had any problems other than recently?
    Sounds like it was the PH, if it's looking good don't worry about it
     
  15. I see new hair growing like crazy again but of course I lost a few leaves but over all it seems a bit better won't know for another day or so
    And it just spring water with minerals
     
  16. Alright...but sodium is salt.
     

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