How long does it take to correct a nutrient deficiency?

Discussion in 'First Time Marijuana Growers' started by CFLConnoisseur, May 10, 2015.

  1. If I have noticed a deficiency in my grow, such as nitrogen for example, how long would it take the plants to absorb it and change the leaves from yellow to green? I'm guessing a few days?
     
    I do not want to overfeed just correct the underlying problems.
     
    Thanks!

     
  2. Give it 1/4 for yhe first feeding and slowly go to full strength as the fed chart says....what kind of nutrients are you using
     
  3. Some deficiencies will never go back from yellow to green. You will just notice the new growth being green and fresh. Im not 100% sure, experts feel free to correct me if wrong, but from my experiences with calcium deficiencies affected leaves never turned back green.
     
  4.  
    This is on the right track.  Yellowing or discoloration will heal with time as long as the leaf tissue is not damaged.  As soon as you start to see that crumbly nastiness or the crumbled burnt edge, thats irreperable damage.  A good example is with clones.  I'm blessed with a large veg area so I usually help my friends out with clones and teens.  The clones yellow off after a while and we plant them and with time and love end up with beautiful teens.  Gradually all that lost color comes back and the plants recover.
     
    Now to more accurately answer your question, their is no real time frame on recovery, there's just too many variable.  The biggest of which, is the nutrient itself.  Some nutrients like phosphorous, nitrogen, calcium, and others are very large and are difficult for the plant to absorb and take in through the root system.  These are the more common deficiencies and thats why the misconception that leaves NEVER heal.  It's not that they don't heal it's just that it takes a long time and the plant usually drops the leaf first or we pick it.  A couple things you can do to help though and be proactive. Always maintain proper pH, a soil rich in beneficial bacteria moves heavier nutrients faster(they turn a one lane road into a highway), and transplanting or administering a fresh res change.
     
    The one thing that absolutely will not work is foliar feeding.  There a mounds of research to support the fact that nutrient absorbtion through the leaves is almost 0%.  Yes a small amount gets through but not enough to make a dent and definitely not enough to justify the rediculous cost of products out there.
     
    Hopefully this information was helpful.  I welcome follow up questions/discussion.
     

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