Quote Originally Posted by cigarettes42
those meters are inaccurate junk.



im curious on how many harvest you had under your belt? i see you give tons of advice. usually if there is a n deficiency the whole plant will get pale in my experience and the big fan leave stems will not turn purple/red. new growth will also turn more pale faster than the older growth. listen to rusty
i have more harvests under my belt than i care to count. i'm no professional by any stretch of the imagination. but my definition of a nitrogen deficiency starting in the older leaves and progression to the middle and finally the new growth is spot on. nitrogen is a mobile element, therefore it MOVES to the new growth manifesting itself in the older growth, the the second oldest and so forth. and yes, eventually even the new growth will be pale (this is very common in over-watered soil plants).

i never mentioned red/purple stems, but that can ALSO be a indicator of a N deficiency as well, but not always as it can also indicate a phosphorus deficiency (as well as being normal in some strains).

i'd rather post something that might jump-start a conversation or spark a discussion to help get more answers or problems solved the sit back and try to look "cool" on the cannabis site. i like to try to give back, period. if you don't cool.

you also grow in hydro a lot correct? (if not my mistake.) anyhow, if you do, problems obviously tend to manifest (and rectify) themselves a lot faster in hydro as opposed to soil. perhaps this is why your new growth appears to turn green first. or perhaps you are having pH issues and its the result of another deficiency altogether.

either way, the fact of the matter is that mobile elements (nitrogen, phosphorus, potassium, magnesium and zinc) start to show in old growth first, and work their way up the plant.


-shake