manganese deficiency?

socalrippin

socalrippin

Member
whats up with these? looks like the start of a manganese def maybe?

they are in an all organic soil, dont know if thats good or bad. been watering with normal tap water 7.0 ph but just switched to 5.8-6.0 ph with light gh nutes.

any suggestions?
 

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Homer Hudson

Active Member
Looks like a manganese deficiency, although have a look at even the smallest veins, are they still green in colour, giving a netted appearance? As you defiantly have chlorosis in areas of the leaf

:)
 
South Texas

South Texas

Well-Known Member
Epsom Salt, does a balance between mag & calcium. I always use it, along with greensand,etc. See the Library at the Dirt Doctor's web site.
 
Briester Behemoth

Briester Behemoth

Member
bump,

for anyone looking at this thread, manganese and magnesium are two DIFFERENT plant essential nutrients, so epsom salt will not help.

That being said, what do you use to correct a manganese in an organic soil?
 
Antigen

Antigen

Well-Known Member
Briester Behemoth said:
bump,

for anyone looking at this thread, manganese and magnesium are two DIFFERENT plant essential nutrients, so epsom salt will not help.

That being said, what do you use to correct a manganese in an organic soil?
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I THINK that high levels of Magnesium contribute to a Manganese lockout, so adding Mg to fix Mn would probably make it worse!

Check out the info on Manganese on http://www.icmag.com/ic/showthread.php?t=11688. There is info about how to correct Mn deficiencies, what they look like, a picture of Mn deficiency, & lots of other cool information. There is also info for all the other essential plant nutrients, as well as pH info and much other stuff. :D
 
Antigen

Antigen

Well-Known Member
Just re-read your original post, 5.8 - 6.0 is too low for growing in soil! That could be your problem right there. Nutes will lower the pH of your water so you need to add pH UP in order to get it to 6.5-6.8. If you can't measure that precisely try to err on the high side of 6.5 rather than the low side. You're locking out Calcium and Magnesium at that low of a pH level.

You probably need to also flush your plants out if you have been giving them that low pH feed water. Acid salts build up in the top of your soil and must be pushed all the way down to the bottom and out the drainholes. For every 1 gallon of soil that your plants use, put 3 gallons of water through them. So if you have 3 gallon pots, you need to run 9 gallons of correctly pH'd water through them. On the last gallon of flush you can add 1/2 strength nutes since flushing will also remove nutes from your soil.
 
NyQuilkush318

NyQuilkush318

Well-Known Member
Antigen said:
Just re-read your original post, 5.8 - 6.0 is too low for growing in soil! That could be your problem right there. Nutes will lower the pH of your water so you need to add pH UP in order to get it to 6.5-6.8. If you can't measure that precisely try to err on the high side of 6.5 rather than the low side. You're locking out Calcium and Magnesium at that low of a pH level.

You probably need to also flush your plants out if you have been giving them that low pH feed water. Acid salts build up in the top of your soil and must be pushed all the way down to the bottom and out the drainholes. For every 1 gallon of soil that your plants use, put 3 gallons of water through them. So if you have 3 gallon pots, you need to run 9 gallons of correctly pH'd water through them. On the last gallon of flush you can add 1/2 strength nutes since flushing will also remove nutes from your soil.
Click to expand...
Am having same problem I will do that bro
 
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