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Glandore Hydroponic Nutrients, Lights and Equipment
International Cannabis Cultivation Questionnaire

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Cannabis Nutrient And Deficiency Table

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#1
Ozzy420

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Attached File  Cannabis_Nutrient_And_Deficiency_Table.JPG   114.94K   106 downloads


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.
  • 3

Cheers
ozzy420

Cannabis Connoisseur

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General Cultivation Q&A


jaikai: couldnt run a choko vine over a shithouse ffs...


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#2
The Hash Nibbler

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Nice Ozzy, these charts are great to know roughly what to look for when diagnosing plant problems, ......invalueable lil tools. Cheers mate. peace. Nibbler.
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#3
mungas

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This should be a sticky!!!

Great tool for new and old growers alike. Thanks Ozzy
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#4
Matt_FTW

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This is good stuff but for someone like myself, who is completely colourblind, distinguishing any issues in leave and stem colour can be quite tricky. Especially when it is under lights in a tent. lol

 

Good job we have cameras and multipule sets of eyes on here to look for us colourblid folk ay!


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International Cannabis Cultivation Questionnaire
Glandore Hydroponic Nutrients, Lights and Equipment
WARNING/DISCLAIMER The OZ Stoners cannabis community contains information regarding cannabis & other drugs; it is designed for mature (18+) audiences only. This site in no way condones the use of cannabis by minors. The content here within this cannabis community is for educational & entertainment purposes only. Any buying/selling or trading of illegal cannabis seeds, clones, flowers, resin or oil is strictly prohibited within this cannabis community.