Old leaves turn yellowish/ red
Nitrogen deficiency



Old leaves turn yellowish/ red
Leaf loss and small dead areas
=========
Phosphate deficiency



Black/ brown leaves, plants die
Excess phosphates



Yellow spots on old leaves and yellowish margins on younger leaves
Potassium deficiency



Yellowish margins on young leaves with deformations
Calcium deficiency



Yellow spots on old leaves while veins stay green
Magnesium deficiency



Young leaves turn yellow
Sulfur deficiency



Yellowing leaves starting from the tip then become white
Iron deficiency



Yellow spots between the veins, margins and tips
Zinc deficiency



Plant stays small slow or now growth.
CO2 deficiency





This is a short simple guide.[center] Please refer to other guides. I have tried to post this in wrong place 3 times.

Why wouldn't we refer to the more complete guide written by someone whom we know first?

it'd be nice if this small guide had small solutions too

[sproutco]

I thought I posted in this thread already. Is there 2? You need to add manganese, copper, boron, molybdenum, and chlorine because these are essential as well.

Like I said SIMPLE suchas yellow spots......

[cadillachydro]

Next guy that makes an effort gets castrated. Geez. A simple guide is a good idea for common problems. Good effort octo, keep it easy ~caddy

yes, a simple guide is good but a Sproutco stated, it need to include all of the elements. Just do an add on.

I had a pal whose grow had a phosphate def. He was not so technical and loaded up on N He also had a sulpherless mix..... He read a huge article and never understood. He went back to growing CHEM WEED and is worse for wear. For us recent converts to organics....Have mercy on us we had instant NPK plus micros. We did not require different mixes for veg growth and flowering. All we needed was a fertilizer change.For myself this stuff is simple. I have been growing somthing for more than 40 years. My Own smoke for 15 years. Some dealers spray weed with pine scented Black Flag insecticide. Some growers fertilize with prouducts containing lead. Dunk buds in sugar water..... . . that is the only danger of pot smoking is....Getting Killed or made insane with some pine scented organo-Phosphate. I have overgrown the weed dealer and if I can help just 1 person do the same then my real karma is++++ I don"t care about the silly personal remarks in my ratings. I could have mentioned cool temps or any thing else and I may add to this another time I am just making an attempt to K.I.S.S. Had this been my first post I would have deleted the post. The consructive suggestions are great and I will expand the subject. But this Maj.PotHead "what a waste of space and bandwidth. This info is all over sick plants section" is not constructive. We all know this information is all over the internet...and in books.. so why do we even bother, just shut off every redundant website , book or media and we can all tend crops ourselves. Pax-Octo

[Maj.PotHead]

well duder for some1 your age talkn to me like that in public which i replyed in PM to you. i will say again your Simple guide to neut problems is incompleate and dosent give any solutions to the problems ppl here is what you really should be reading when your plants are sick https://www.icmag.com/ic/showthread.php?t=11688 mynamestitch took along time composing [The Complete guide to Sick Plants,pH, and Pest troubles! ] this isnt confusing it explains in depth has pic's and the proper soloutions for your plants problems.

copy and paste the sick plant guide in MS office word and everything is saved pic's included

but hey OCT good way to get your post count up eh double postn threads