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Jacks (JR Peters) nutrients

Discussion in 'Nutrients' started by Growerguy420, Nov 12, 2014.

  1.  
    im4satori

    im4satori Well-Known Member

    sure that's good stuff

    the jacks is also good

    either is fine

    the jacks is higher in Mg and doesn't require Epsom like he said....

    but both are excellent choices
     
  2.  
    nxsov180db

    nxsov180db Well-Known Member

    The 420 mix looks like you could use for veg and bloom just by using either more or less cal nitrate, it's easier with the 420 to lower the nitrogen while still having enough calcium than the 5-11-26/5-12-26
     
    Akira90 likes this.
  3.  
    Akira90

    Akira90 Member

    @nxsov180db How would you recommend running this mix through Veg and Flower?
     
  4.  
    nxsov180db

    nxsov180db Well-Known Member

    veg:
    2g 4-20
    2g epsom
    2.5g cal nitrate

    flower:
    2.5g 4-20
    2g epsom
    2.25g cal nitrate
     
    Akira90 likes this.
  5.  
    danktoker60

    danktoker60 Member

    I'm too lazy to scan through the posts, but what is the recommended strength for the all purpose and bloom booster? I alternate between the two every watering. The strength I mix is 1 teaspoon per gallon.
     
  6.  
    Akira90

    Akira90 Member

    Thank you!!’ I’m pretty excited to try this. Anything else you’d recommend to help bud density? I’m using 700 watts of COBs with 1100 ppm of CO2. Lowred it after I was told 1400-1500 was too much... Also, about what EC do you recommend running. I’m using RO thanks to crappy water.
     
  7.  
    nxsov180db

    nxsov180db Well-Known Member

    700 watts over how large of an area? 1400-1500 isn't too much but you won't get any gains after 1500, I personally use 1200. In veg I usually work my way up to a 1.7-1.9 EC and after a couple week of flower I need less. It's really subjective to strain and growing style and room environment. I always check EC at least once a day to see if it rises or drops. If it drops I know they need more if it rises I know I gotta back off.
     
    Akira90 likes this.
  8.  
    Akira90

    Akira90 Member

    I have 960W (3 320w supplies) total but I have them turned down on a 4x4 tray as my ladies at 18”-20” went into a light shock when I cranked them up...

    Makes sense to watch the EC. I’ll give that a go! I hope the 4-20 formula works well for bud density as my last try they seemed a little airy.
     
  9.  
    nxsov180db

    nxsov180db Well-Known Member

    Ok, that sounds about right for a 4x4, I use about 750 watts of cob per 4x4. What did you feed them your last run?
     
  10.  
    sister_ray_says

    sister_ray_says New Member

    New grower here. I've tried to read through the entire thread but it just got me more confused!

    My plan is to use Pro Mix HP as my medium..

    Would i be wrong to use 1/4 tsp / Gal of Jack's Classic All Purpose (20-20-20) in veg and work my way up to no more than 1 tsp / Gal depending on what the plants need?

    Then switch to Jack's Bloom Booster in flower?

    Would I be better off using Jack's Citrus from start to finish? I'm looking to keep things as simple as possible..

    I plan to try using plain tap water (slightly hard). Will i need to add calcium or epsom slats? I guess this depends on what the plants tell me they need and what's in my water.

    Thanks for your help!
     
    mr. childs likes this.
  11.  
    Akira90

    Akira90 Member

    I was using maxi grow and Epsom salts with some other things like humic acid, kelp etc.
     
    mr. childs likes this.
  12.  
    Roger A. Shrubber

    Roger A. Shrubber Well-Known Member

    i grow with jack's in pro mix. i used the 20-20-20 to begin with, but it seems to be too much P, so i switched to citrus for most of the run, just use the bloom booster as a pk boost when they stop stretching for 2 weeks, then go back to citrus to finish up.
    i'm not sure about your measurements, i use a ppm pen, i give them 300 ppm in veg, 500 ppm till the stretch is through, 500-800 ppm for the two weeks of pk boosting, then start tapering off, dropping 50 to 100 ppm each feeding till i'm down to 200 ppm, and stay there till they're done.
    you will definitely have to add calcium, as Jack's has none. it interferes with sulfur, which jack's has plenty of.
    you can either give them some calcium nitrate from time to time, add a lot of cal-mag, or buy a bottle of yield booster, which is a calcium spray for tomatoes, but works great on weed.
     
    mr. childs likes this.
  13.  
    sister_ray_says

    sister_ray_says New Member

    Thank you! Is there any special way to feed the plants Calcium Nitrate? Tablespoon per plant every few weeks dissolved in water/nutes?
     
    mr. childs likes this.
  14.  
    Roger A. Shrubber

    Roger A. Shrubber Well-Known Member

    yeah, i'm sure it will come with instructions, but don't feed it with your other food, i'd say every couple of weeks skip a feeding and give them the cal-nit.
     
    mr. childs likes this.
  15.  
    Akira90

    Akira90 Member

    I fed them some Maxi bloom as my base but must have misscalculated somewhere.
     

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