sulphate of potash organic???

[dpn]

is sulphate of potash considered organic? does it have any negative aspects. thanks :farm:

[bopper]

Natural, mined Sulfate of Potash is considered organic.

Best,

bopper

[dpn]

are products without the naturally mined description considered non organic, heres an example http://www.gardenhealth.com/product_range/straights/potash.php
can i use this product without destroying all the good life in my soil?

[plantbuilder]

http://www.acornorganic.org/cgi-bin/organopedia/indexdisplay?1
keep in mind that box says 35g per m2
peace
pb

[kanebosem]

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[dpn]

thanks for the replies ive found an organic mined source which i will be using (not the product in the link) cheers.

[bopper]

Hey kanebosem,

Have you tried the sulfate of potash as a compost tea additive, and if so, with what result?

The only concern, other than over-application, seems to be a possibility of too much Mg if using Dolomite at the same time. Since canna often seems to lack magnesium, is it really a concern in this case?

Best,

bopper

[knna]

Im going to use potash sulphate to correct the low K and S levels of canna coco+PK13-14 profile, but im afraid it can affect ph if the SO4K2 react with other salts in the solution (not organic grow). The ph of SO4K2 dilution gives me a bit less of 4. Anybody has experienced it?

Bopper, can you explain why the potash sulphate can increase the mg absortion? (i though that K+ compete with Mg+)

I believe over application of SO4K2 is very difficult, toxicity level of S and K are really high.

knna

[bopper]

Isn't Sulfate of Potash actually Langbeinite - K2Mg2(SO4)3, not just SO4K2?

Best,

bopper

[knna]

Now i undrstand. I buyed directly the SO4K2 (98% pure), or thats what i though. I musk check it.

Thanks

[kanebosem]

i never used it in my tea's just small amounts when i make my compost piles.
here is an intersting article about organic applications

http://194.54.168.29/SAPPortal/ICLPortal/ICL_Fertilizers_Library/Agronomic%20Articles/K%20in%20organic%20agriculture.pdf

[YummyBud420]

mashed potashios