Sohum living soil potassium deficiency

ShLUbY said:

You’d be much better off using a larger pot and growing one bigger plant. That small of a pot just isn’t enough. You’ll get much better results with bigger pot with one plant.

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Smiffy2k9 said:

Heys lads, im growing fast buds gorillia glue autos in sohum living soil. Im using homemade 2.8 liter sips as im limited by space. Since starting the grow ive learned this is not enough soil to provide the plant with enough nutes for the entire grow. One of the plants has what i think is a potassium def.

I had a google and came across banana tea. How many skins per liter of water and then will i need to dilute this before top feeding? Or is there a better option?

Also what can i add to the soil to give it a boost for the next run of plants ill be starting at the weekend?

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MustangStudFarm said:

Show us a pic of the whole plant. Is it affecting new or old tissue, it will tell if it is a mobile nutrient or not. It could even be a micronutrient deficiency. The yellowing is called chlorosis and it is caused by several different things. Like, iron chlorosis is a generic term for micro def. I often have Mn def that causes spots and chlorosis.

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kratos015 said:

Are you certain it's a deficiency?

Excess Calcium in your soil will lock out Potassium as well as Magnesium. Look around for Magnesium deficiencies too. If you have both Mg+K deficiencies then the issue is too much Calcium.

Running low on K is somewhat uncommon, so I'd be more inclined to check Calcium levels before anything else. You want to be absolutely certain you have a deficiency before correcting it, otherwise you'll just create more problems.

I only know of this because my water is from a well that is heavily calcified. So calcified in fact that every time I water is like adding Dolomite Lime. Eventually, my water combined with my Oyster Shell Flour, Gypsum, and Crab Meal resulted in excess Calcium which locked out both K and Mg as well as shot my pH through the roof.

I had to switch to RO water from water machines until the cycle was over. Then I made a new batch of soil without any Calcium in it so that I could continue to use my well water without any issues.

Edit: The leaf on the bottom right hand corner almost looks like a Mg deficiency to me. What kind of water are you using and how much do you know about the water in terms of what's actually in it? How many of your soil amendments have Calcium in them? Use CalMag lately or anything of the sort?

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