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Epsom Salt dosage rates

Discussion in 'Tree Farming' started by Dizzy Weasel, Mar 23, 2014.

  1. Dizzy Weasel

    Dizzy Weasel Loves Eating Tacos Supporter

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    How much do you guys typically put for cal mag supplement? .3ml per gallon seems like it would be around 80ppm... Thanks guys
     
  2. I do .5 grams but honestly let the plant tell me what it wants
     
  3. Dizzy Weasel

    Dizzy Weasel Loves Eating Tacos Supporter

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    Thanks got these candylands keep lookin like they need more mg. purple stalks and stringy.... Then others look better I think the others are stealing it right out of the water since there is not much... I don't have a scale but that is roughly .5ml correct? I used to use it for flush and was told 1g per gal and I thought it ended up being close to 1ml.... Do you use CS nutes? Was told they had more cal mg then most...
     
  4. Seamaiden

    Seamaiden Living dead girl

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    You know that Epsom is MgSO4, which means there's not a single atom of calcium in it, right? Start with 1/4tsp, or about 1g per gallon, go from there.
    Sounds more like a P- than anything else. See my sig line?
     
    sixstring, DemonTrich, MGRox and 5 others like this.
  5. Dizzy Weasel

    Dizzy Weasel Loves Eating Tacos Supporter

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    Thanks.... What is your sig line? Defiantly correct on the no calcium just meant in place of cal mg... Ya I def don't have a nute issue tho, got randoms with rot they were white 3days ago been away from them too much the last week, but 90% of the rest are 110% healthy, other systems with difernt genetics are 100% winners, candyland just had always had weak root systems...
     
  6. Cort

    Cort

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    Click on Sea's post where is says "The Charts" She has a nifty little picture that will help with nutrient deficiencies. Study well so you can make small corrections before you have big problems.
    The purple stems are a sign something is wrong.


    T he Charts--Nutrient Deficiency Diagnoses Made Easier


     
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  7. Seamaiden

    Seamaiden Living dead girl

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    It's confusing to me when people talk about replacing 'cal mag' with Epsom salts. You're only replacing Mg. What are you going to do about Ca, and how are you going to get it up to the correct ratio?
     
    DemonTrich and JAWS like this.
  8. Well, good is always subjective. What I see there is a good sales page for Ultra Epsom Salts. I'm not singling you out, as I think Cal/Mag and epsom salts to be overused, period. Over the years, most of the Ca and Mg issues I have seen in weed forum Infirmaries, are tied to something other than a lack of enough Ca or Mg in the nutes. Like rootzone pH issues, failure to water appropriately, nutritional elements in the wrong proportions (cation competition) and often combined with the use of tap water. Further, peat/perlite/vermiculite (what most 'dirt' farmers use) is NOT soil, leading to confusion on the 'right' pH range for MJ.

    In hydro, not letting your res play from 5.1-2 to about 6.2, or so, can create issues for things like Ca and Mg uptake. With Mg, specifically, uptake sucks between about 5.5 and 6.0. It is a much more efficient process between 5.0-5.5. So, running hydro (any hydro, including RDWC) or a peat/per/ver (with a good 10-15% runoff) and forcing the pH to always be above 5.6, well, big effin surprise you are trying to foliar feed epsom or add it to your regime, 'cause yer girls seem Mg def. To compensate for a limited pH, people start having to mix and match disproportionate nutrients that then perform like shit if outside that limited pH range. Or even on different strains.

    MJ plants are not Mg or Ca whores. Rather, they are often grown under the conditions I describe in this post, with resulting Ca or Mg deficiencies occurring, with most usually the wrong thing being done. Instead of actually fixing the problem, people start using foliar feed band-aids or more bottles of nute or bags of salt.

    Never really fixing the condition (like wrong or limited pH range), or even understanding what the actual problem is ...

    Having RO water does not mean you must add Cal/Mag, either. What makes one 'must' add it, is a deficient base (Macro/Secondary/Micro) nutrient regime, like, say, Botanicare's Pure Blend Pro. I have seen a lot of N toxicities in gardens of Cal/Mag users. A lot.

    But, like a other things (e.g. WRONG pH range for hydro and peat/per/ver), this epsom salt and Cal/Mag thing has been cemented in stone on the weed forums.

    Weed forums that are mostly Beginner and Intermediate growers, serving as one big Echo Chamber of, sometimes, complete bullshit on how to grow weed.

    And, lot's 'o people have a lot of posts invested in pimping Cal/Mag and epsom, having 'developed' some patchwork, inefficient nutrient regime, so good luck finding many open minds about what is really causing all of these Ca and Mg def that show up in weed gardens and on weed forums. And weed being a Ca Whore, or an Mg slut ain't what really causes this. It is usually operator error ...

    That article, in addition to being a sales page, used words like 'it is believed'. You have to discriminate, a bit, when taking stuff like this and applying it to an indoor weed garden using soiless peat/per/verm or hydro. In this case, you need to remember that Mg is very mobile - not just in plants, but also in the soil. Outdoors in REAL soil. It leaches and flushes through, which, after the course of time, can lead to Mg defciencies on the soil. Take that same exact soil mix that all of these rose, pepper and tomato gardeners are growing in in your backyard, and it would most likely limit your harvest. And, it will most like be an organic soil very low in Mg because of how mobile Mg is in the soil. Sure, throw some Mg salts in the soil in that case. And some perlite, and some worm castings, and a whole bunch 'o other crap, because it is just organic soil you dug out of the average backyard, deficient in many ways, with Mg being right up there.

    You could piss in a jug every day, dilute it a bit, and throw it one your lawn and see positive results. And that is because the medium that the lawn is growing in is way less precise, taken care of, fed, full of nutrients than your bottles bought at the grow shop, etc., than the medium in a weed garden. Doesn't mean I want to start pissing on my weed plants, though ...

    What's my epsom salt AND Cal/Mag dosage WITH RO water? 0mL/ga.
     
    Last edited: Jun 5, 2014
  9. Capulator

    Capulator likes to smell trees. Supporter

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    ^^good post @PNutGallery

    I always wonder about people who claim to be in soil, but the bags they are buying at the store are a mix of peat and/or coco.

    Soil is a mixture of sand silt and/or clay. Not coco. Not peat.
     
  10. Seamaiden

    Seamaiden Living dead girl

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    http://www.foliarsprays.com/en/welcome/mineralized-soil.html

    If you want to know what soil is, and what well mineralized soil is, read this article. I've excerpted some key points, but to get the complete picture the entire article should be read. There can be coir or peat mixed into a soil base, but without the humus and minerals, Capulator is 100% on point, it ain't soil.



    four-bases-of-soil-mineralization.jpg
     
  11. Lots of good posts in here thanks yall
     
  12. muskbud

    muskbud

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    "I have never seen a case of CA deficiency in cannabis"------Ed Rosenthal
    Cal-mag.....probably the most overused unnecessary product in the growing world.
     
  13. Seamaiden

    Seamaiden Living dead girl

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    I can show him Ca- in cannabis, plenty of photos from here to select from.

    You might enjoy my Cal-Mag thread (sig line).
     
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  14. muskbud

    muskbud

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    Thank you...I found a plethora of great info there....an understanding that is now gathered knowledge. :)
     
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