Cannabis Nutrient And Deficiency Table
Posted 27 April 2012 - 01:31 PM
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.
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.
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.
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.
Plants suffering from S definciencies exhibit yellowing of new growth. Mix one tablespoon of Epsom salts per gallon of water until condition improves.
Lower leaves yellow and may even turn white while veins remain dark green. Blades die and curl upward.
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.
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.
Growing shoots turn grey or die. Growing shoots appear burnt. Treat with one teaspoon of Boric acid (sold as eyewash) per gallon of water.
Yellowing of middle leaves. Foliar feed with chemical fertilizer containing Mb.
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.
Causes leaf tips to appear yellow or burnt. To correct soil should be flushed with three gallons of water per one gallon of soil.
jaikai: couldnt run a choko vine over a shithouse ffs...
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Posted 27 April 2012 - 02:22 PM
And so, life returned to normal, or at least as normal as it gets in this primitive dirtball inhabited by psychotic apes. Thanks to the effects of the Hash waves, the people of Earth have not memory of what had transpired, except Nibbler, and no one believed him or cared what he had to say. I, meanwhile, returned to my post, ever vigilant, lest Earth again come under Hash attack. And when that day comes, God help us. God help us all.
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Posted 04 May 2015 - 10:48 AM
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.
Good job we have cameras and multipule sets of eyes on here to look for us colourblid folk ay!
Please help to make a difference. You never know who's life you may be saving!
The tragic and deeply saddening story of my friend and his losses.
***WATCH WITH CAUTION. UPSETTING VIDEO!***