Something is wrong??

[R3za92]

Yup, there's obvious K and Ca issues.

Some look better than others... One looks like Mg, another Ca and K... Some look like a combo of severe K and Ca deficiencies with N toxicity. Without knowing what's been added nutrient wise, it's impossible to troubleshoot really.

Mg,k,Fe which can all be caused by low calcium and boron uptake. Never seen a plant present a boron deficiency but I’ve fixed plenty of Fe and mg defs with a boron foliar treatment.

 

[Donothing-garden]

Nice info there... I would summarise the issues personally... If I were to look at those plants at a glance, I'd say the soil that the super deficient plants are growing in is really shit and it's probably very cold. The not so shit plants, I'd happily nurse them into health.

 

[frankreynolds]

Nice info there... I would summarise the issues personally... If I were to look at those plants at a glance, I'd say the soil that the super deficient plants are growing in is really shit and it's probably very cold. The not so shit plants, I'd happily nurse them into health.

Not really that on topic but do you guys try to target a specific Fe : Mn ratio?

 

[Donothing-garden]

Not really that on topic but do you guys try to target a specific Fe : Mn ratio?

That's a noble goal... I add organic chelated manganese sulfate to my soil which will help to reach that balance a little.

 

[R3za92]

Nice info there... I would summarise the issues personally... If I were to look at those plants at a glance, I'd say the soil that the super deficient plants are growing in is really shit and it's probably very cold. The not so shit plants, I'd happily nurse them into health.

Ca and boron effect mobility of nutrients in the plant. Lacking 1 or both means plants will have a harder time up taking most nutrients from the root zone. A s saying I live by, calcium is the nutrient highway and boron is the trucker

 

[frankreynolds]

That's a noble goal... I add organic chelated manganese sulfate to my soil which will help to reach that balance a little.

Do you have an issue with too much Fe from organic inputs? I've started running 1:0.75 Fe: Mn but hear 1:1 is good

 

[HGO]

I see nobody has suggested lowering the ph down to below 6.5
the nutrients are more readily available at that lower end of the scale

 

[Donothing-garden]

Do you have an issue with too much Fe from organic inputs? I've started running 1:0.75 Fe: Mn but hear 1:1 is good

I'm pretty sure the iron should be a bit higher than that on the ratio...

 

[Donothing-garden]

Being a living soil matrix, the right biology is going to take care of converting the right amount of iron to plant available form anyway... Just need Mn in sufficiency.

 

[frankreynolds]

From the commercial cultivators etc that are smarter than me and have access to tissue analysis seems what there aiming for. Excess Fe effects uptake of MN. Mn seems very important for secondary metabolites. Interesting stuff

Edit* i just saw some comments online from some commercial growers in the US having a hard time sourcing lower Fe organic inputs. in the states Why i was interested with wha tyou guys are doing

 

[Donothing-garden]

From the commercial cultivators etc that are smarter than me and have access to tissue analysis seems what there aiming for. Excess Fe effects uptake of MN. Mn seems very important for secondary metabolites. Interesting stuff

Edit* i just saw some comments online from some commercial growers in the US having a hard time sourcing lower Fe organic inputs. in the states Why i was interested with wha tyou guys are doing

Yes but like U say, tissue analysis so it's what the plant is taking up. If your soil is well balanced and there's a good ratio in solution which is different to total nutrients, then you're good.

 

[frankreynolds]

Yeh, tissue analysis is only one thing they were testing afaik. there were other variables.

Do you have a lot of non water soluble iron forms in the mix? I agree balance is key for the elements.

 

[Donothing-garden]

Yeh, tissue analysis is only one thing they were testing afaik. there were other variables.

Do you have a lot of non water soluble iron forms in the mix? I agree balance is key for the elements.

Yes, which will be solubilized by microbes for plant use... Even looking at totals, the ratio on my soil isn't too far out.

 

[frankreynolds]

interesting, I'm assuming the reportrs on your site are referring to water soluble nutrients avaialable?

 

[Donothing-garden]

interesting, I'm assuming the reportrs on your site are referring to water soluble nutrients avaialable?

Both

 

[Porky]

Yup, there's obvious K and Ca issues.

Some look better than others... One looks like Mg, another Ca and K... Some look like a combo of severe K and Ca deficiencies with N toxicity. Without knowing what's been added nutrient wise, it's impossible to troubleshoot really.

Nothing has been added except dolomite lime in liquid form and Epsom salts to the larger plants.
Water only with the small plants.
As said the small plants are in 3 different soils one osmocote with 30% perlite one a searls mix with perlite and the other Dr Greenthumb's.
Dr Greenthumb's would be lucky to have 5% perlite and I added to take it up to 30%
Plants grow In straight perlite so porosity is not a problem!!

 

[Porky]

If it’s actually ca issues raising temps and foliar spraying calcium would help. 23c leaf temps is low as, 23c room temp is even worse.

I can run the room at as high as 35c and I've tried several different temps over 3 to 4 week periods and there is no difference in growth or look!!

 

[R3za92]

Nothing has been added except dolomite lime in liquid form and Epsom salts to the larger plants.
Water only with the small plants.
As said the small plants are in 3 different soils one osmocote with 30% perlite one a searls mix with perlite and the other Dr Greenthumb's.
Dr Greenthumb's would be lucky to have 5% perlite and I added to take it up to 30%
Plants grow In straight perlite so porosity is not a problem!!

Porosity is a problem for soil microbes but.

 

[Porky]

I'm guna germ 2 seeds and put em in straight perlite and see what happens!!

 

[Porky]

Porosity is a problem for soil microbes but.

It's not a living soil in 5 of the 8 small plants. Over watering is usually the root of almost all problems in soil and the plants are not over watered.
Even the living soil plants are showing the exact same problems as the others.
I would think the 3 living soil plants that have just had water should look fine at 3 weeks of age.