Organic Potassium

drabstab · Oct 12, 2009

All right, I've been trying organics with the round of soil-grow girls I've got going right now, but I've been giving them bat guano for nitrogen, bone meal for a little phosphorous (Not flowering yet), and putting that in a mix of peat moss and organic soil. So I'm realizing I've got to be real low on potassium in my soil mix, but I don't know if it's slowing the plants down or anything. They look great, but I know for a fact that they have almost no potassium! So how well can they really do with no potassium, and where would I find some sort of organic potassium supplement??

IAm5toned · Oct 12, 2009

ash from hard woods, like white oak or elm

Green Cross · Oct 12, 2009

drabstab said:
All right, I've been trying organics with the round of soil-grow girls I've got going right now, but I've been giving them bat guano for nitrogen, bone meal for a little phosphorous (Not flowering yet), and putting that in a mix of peat moss and organic soil. So I'm realizing I've got to be real low on potassium in my soil mix, but I don't know if it's slowing the plants down or anything. They look great, but I know for a fact that they have almost no potassium! So how well can they really do with no potassium, and where would I find some sort of organic potassium supplement??

"

Potassium is associated with strong sturdy stems and plants with a high resistance to diseases and pests."

You don't need a lot, in fact too much may knock the potency down - in a study I read...

Green sand is probably the best organic K supplement, but it's best to add it to the soil when you mix it.

Earth juice catalyst has plenty of K and lots of other good stuff

drabstab · Oct 12, 2009

IAm5toned said:
ash from hard woods, like white oak or elm

thx this is easy, any suggestions on how much is needed? I have like approx. a sq. foot pot or so

drabstab · Oct 12, 2009

Green Cross said:
"

Potassium is associated with strong sturdy stems and plants with a high resistance to diseases and pests."

You don't need a lot, in fact too much may knock the potency down - in a study I read...

Green sand is probably the best organic K supplement, but it's best to add it to the soil when you mix it.

Earth juice catalyst has plenty of K and lots of other good stuff

I'm probably gonna use earth juice or something similar with my hydro grow. What is green sand??

IAm5toned · Oct 12, 2009

drabstab said:
thx this is easy, any suggestions on how much is needed? I have like approx. a sq. foot pot or so

i coat the top layer about 1/8th to 1/4 inch thick then mix it in so its dispersed nice and evenly.

youraveragehorticulturist · Oct 13, 2009

You can also use Epsom Salts for potassium. You can add some into your soil before you pot, or top dress with it. I guess you could dissolve some in water as well, but I've never tried that.

You don't need much, probably just a table spoon per gallon if you're going to top dress. I'd start with a teaspoon per gallon if you want to add it to a tea or something.

I believe the epsom salts are faster acting than greensand, because they are water soluable.

svchop889 · Oct 13, 2009

youraveragehorticulturist said:
You can also use Epsom Salts for potassium. You can add some into your soil before you pot, or top dress with it. I guess you could dissolve some in water as well, but I've never tried that.

You don't need much, probably just a table spoon per gallon if you're going to top dress. I'd start with a teaspoon per gallon if you want to add it to a tea or something.

I believe the epsom salts are faster acting than greensand, because they are water soluable.

epsom salt is magnesium sulfate MgSO4.7H2O and does not contain potassium so i do not know why epsom salt would help low potassium maybe you are thinking of the table salt alternative potassium chloride?

svchop889 · Oct 13, 2009

composted banana peels will work for you bro

youraveragehorticulturist · Oct 14, 2009

I'm not sure man. My bag says 0-0-22 on the front.

stealthygrower · Oct 14, 2009

Seaweed (kelp) is used for potassium...Potash is used as well.You can find both on e-bay.A good idea is to find out what some of the better nutrient companies are using in their ferts.Try to emulate and save some $$

purpz · Oct 14, 2009

You can use green sand which has many trace elements in it usually around a 0-0-3 N.P.K. ratio. kelp meal which is also good for condition your soil as well, usually around a .1-.5-2 ratio. Also as mentioned before wood ash from any type of hard woods, ash also gives many micro-nutrients as well as fast acting, but don't over do it because it tends to throw p.h. off.

smppro · Oct 14, 2009

Crushed granite, slow release, 0-0-5 67% silicas 19 trace minerals

drabstab · Oct 14, 2009

Thanks guys

drabstab · Oct 14, 2009

svchop889 said:
composted banana peels will work for you bro

Can I let them compost in the soil or do I have to compost them remotely and add them to the soil?

This is so funny, it's actually for my room mate's plants. He was gonna try banana peels but it seemed too simple. Everyone knows bananas have a lot of potassium!

youraveragehorticulturist · Oct 21, 2009

Well, I just checked the bag again. I've been using "Epsom Plus" from Espoma. It's epsom salts with potassium added. It's 0-0-22, plus you get the magnmesium and sulfur from the salts.

So, like you said, regular epsom salts don't have any K.

Tyrannabudz · Oct 21, 2009

Check out the label on this bottle of molasses that I have used. Can be purchased at the grocery store in the baking goods section. A good source of potassium, not to mention calcium and magnesium and vitamin b as well. Molasses can be used throughout veg and flower. Another benefit it provides is a food source for beneficial bacteria if you are using any. :joint:

kjar · Oct 28, 2009

Tyrannabudz said:
Check out the label on this bottle of molasses that I have used. Can be purchased at the grocery store in the baking goods section. A good source of potassium, not to mention calcium and magnesium and vitamin b as well. Molasses can be used throughout veg and flower. Another benefit it provides is a food source for beneficial bacteria if you are using any.

I use this exact stuff. I just wish I knew exactly what the NPK ratio was when applied to plants. any one know how to figure it out?

plaguedog · Nov 12, 2009

Liquid seaweed or powdered kelp is your best bet. Greensand takes FOREVER to break down and generally does nothing for a short grow. If you reuse your soil it works better.

Organic Potassium

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