potassium deficiency?

In living soil. About a month into veg. led lighting. Been feeding Bokashi Pro-Gro and Gaia Green 4-4-4.

Didn't think I was low on potassium already but this living soil stuff is new to me sooo.

What do you all think?

King Avitas said:

In living soil. About a month into veg. led lighting. Been feeding Bokashi Pro-Gro and Gaia Green 4-4-4.

Didn't think I was low on potassium already but this living soil stuff is new to me sooo.

What do you all think?View attachment 5218868View attachment 5218869

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How often have you fed them and how much each time?

Kushash said:

How often have you fed them and how much each time?

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Just started feed them about a week ago. The soil was heavily amended when it was made. Giving them ¼ cup of each once a week.

Soil was built with:

Peat:
-7.5cu.ft. Sphagnum Peat Moss

Compost:
-1cu.ft. Sheep Manure Compost
-1cu.ft. Mushroom Manure Compost
-1cu.ft Sea Soil Fish Compost
-3cu.ft. Worm Castings

Aeration:
-4cu.ft. Coarse Perlite
-2cu.ft. Rice Hulls
1cu.ft Charged Bio-Char (not traditional airation but...)

Fertilizer Amendments:
10 Cup Kelp Meal
10 Cup Neem Cake

Mineral Amendments:
20 Cups Basalt Rock Dust
10 Cups Oyster Shell Flour
10 Cup Gypsum

I'm pretty sure it's a potassium deficiency but just wanted other opinions before I start blasting them with potassium.

Oops, thought I posted this in "marijuana plant problems".......

You might consider a soil test. It could very well be lockout-I highly doubt you are deficient in K with that mix. You probably spent a lot to make that soil, a test will save you from adding more of something you don't need. Good luck!

Magnesium deficiency early

hotrodharley said:

Magnesium deficiency early

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Yeah, I was just in there putting the scrog net up and was thinking the same with all the purple on the stalks and stems.

Rurumo said:

You might consider a soil test. It could very well be lockout-I highly doubt you are deficient in K with that mix. You probably spent a lot to make that soil, a test will save you from adding more of something you don't need. Good luck!

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Yeah, I might have to look into that. I have never done soil testing. I don't know where to start with testing. Ph testing is probably all I can do myself but that would be a good place to start I guess.