Usefull Chart FOR PROBLEM SOLVING... ANYTHING WRONG WITH YOUR PLANTS? LOOK HERE.

Discussion in 'General Marijuana Growing' started by bubonicchronic, Aug 25, 2007.

  1.  
    bubonicchronic

    bubonicchronic Well-Known Member

    HERE ARE EVERY DEFIENCY AND NUTRIENT PROBLEMS.........

    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.





    JUST TRYIN TO HELP ALL MY FELLOW WEEDHEADS :)
    [​IMG]
  2.  
    UnEmploymentDude

    UnEmploymentDude Well-Known Member

    Faldikar and smok3y1 like this.
  3.  
    e22o2

    e22o2 Active Member

    Thank you for posting!
  4.  
    eznuke

    eznuke Active Member

    Useful, thx!
  5.  
    po'thead

    po'thead Active Member

  6.  
    smokemupm8

    smokemupm8 Member

    Is it normal for the older fan leaves to turn yellow, and droop nearing end of flower? And some of the smaller green leaves in the buds- the tips are turning a little purple, not all of them, is this a deficiency?? Thanks:)
  7.  
    Flares

    Flares Active Member

    Thnks for posting. every bit helps :)
  8.  
    Faldikar

    Faldikar Active Member

    thanks for posting

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