Common Deficiency List & Cures

I have noticed a lot of people with some sort of deficiency so I figured I would post this list of common deficiencies and the remedies for them.

NITROGEN (N)
Pale plants, red stems, smaller growth. Rapid yellowing
of lower leaves progressing up the plant. Add any chemical fertilizer
containing N. Treated plants recover in about a week.

PHOSPHORUS (P)
Slow or stunted growth, red stems. Smaller leaves that
are dark green. Lower leaves yellow and die. Add chemical fertilizer
containing P. Affected leaves will not show recovery but new growth will
apear normal.

POTASSIUM (K)
Affected plants are usually tallest and appear to be
most vigorous. Necrotic spots form on lower leaves. Red stems. Leaves appear
pale or yellow. Add chemical fertilizer containing K.

CALCIUM (Ca)
Lack of calcium in the soil results in the soil
becoming too acid. This leads to Mg or Fe deficiency or very slow stunted
growth. Treat by foliar feeding with one teaspoon of dolomatic lime per
quart of water until condition improves.

SULFER (S)
Plants suffering from S definciencies exhibit yellowing
of new growth. Mix one tablespoon of Epsom salts per gallon of water until
condition improves.

MAGNESIUM (Mg)
Lower leaves yellow and may even turn white while veins
remain dark green. Blades die and curl upward.

IRON (Fe)
Leaves on growing shoots turn pale and veins remain
dark green. pH imbalances make iron insoluble. Foliar feed with chemical
fertilizer containing Fe or rusty water.

MANGANESE (Mn)
Necrotic and yellow spots form on top leaves. Mn
deficiency occurs when large amounts of Mg are present in the soil. Foliar
feed with any chemical fertilizer containing Mn.

BORON (B)
Growing shoots turn grey or die. Growing shoots appear
burnt. Treat with one teaspoon of Boric acid (sold as eyewash) per gallon of
water.

MOLYBDENUM (Mb)
Yellowing of middle leaves. Foliar feed with chemical
fertilizer containing Mb.

ZINC (Zn)
White areas form at leaf tips and between veins. Occurs
in alkaline soils. Zn deficiency can be treated by burying galvanized nails
in the soil. Chemical fertilizer containing Zn can also be used.

OVER FERTILIZATION
Causes leaf tips to appear yellow or burnt. To correct
soil should be flushed with three gallons of water per one gallon of soil.

Hope this helps some peoplegood luck with our grows and happy toking!
I will update with pictures as I come across them for further identification.

Hmm must not of been useful, it is funny though how since I posted this about 10-20 deficiency problems have been posted people need to search.... bump

I don't grow.. but thanks for the info. Someone appreciates you.

Also, in your sig. you should put "Plant deficiency" I thought it was a "lol" thread.

Titties and Beer said:

Also, in your sig. you should put "Plant deficiency" I thought it was a "lol" thread.

Click to expand...

Will do and thanks for the appreciation, awesome Sig by the way.

This won't be useful for most people that need it because they also need pics to help identify which condition their plants suffer from. And even such guides as this I have seen with pictures, almost never have enough of each condition that I can narrow down my problem to fewer than 2 or 3 different issues (or any because none of the pics are similar enough to mine).

jdizzle22 said:

This won't be useful for most people that need it because they also need pics to help identify which condition their plants suffer from. And even such guides as this I have seen with pictures, almost never have enough of each condition that I can narrow down my problem to fewer than 2 or 3 different issues (or any because none of the pics are similar enough to mine).

Click to expand...

That's because most guides such as this are ment to not give you the answer that would not be possible without a serious amount of work and having to induce the deficiency to the plants to get the pictures but anyway the guides are more of general guideline or something to lead you in the right direction you should use the guide and personal experience or experience from others to solve your problem.