New grower Strange yellow leaf problem

[growgood]

So i just recantly started growing and had some problems from the start but things seem to be shapping up. Still some strange yellowing is appearing on the top leafs that are under two florecent lights i have. The yellowing begins were the stem meets the leaf and up towards the tips its a more normal green color. The yellow is a verry bright yellow and like i said the yellow fades more towards the top of the leaf and turns back in to a better looking green. Is this a nutriant def or mabey a ph broblem? please help.i will try to get some pic as soon as i can but in the mean time.....

P.S. i use a natural soil and mixed in perlite my self.:thumbsup:

growgood Reviewed by growgood on 04-24-2008. New grower Strange yellow leaf problem So i just recantly started growing and had some problems from the start but things seem to be shapping up. Still some strange yellowing is appearing on the top leafs that are under two florecent lights i have. The yellowing begins were the stem meets the leaf and up towards the tips its a more normal green color. The yellow is a verry bright yellow and like i said the yellow fades more towards the top of the leaf and turns back in to a better looking green. Is this a nutriant def or mabey a ph Rating: 5

[growgood]

Hey stink hows it going im new to this site and also just started growing and i have been reading up alot on this site and have recently joined.Im having some problems with my indoors soil set up.for the most part things are going good but recently i have had the top two leafs that have recently appeared turning yellow but not in the same way
I have seen some of the leafs on this site.The yellowing starts were the stem starts the leafs and fades to a normal green color towards the top or tip of the leaf,I also have an explanation on the plant problems forum labeled "new grower having strange yellowing problems" just posted on 4/23/08. I guess the reason im asking you about these problems is because...well lets face it you seem to know alot about growing! An intrest we both share!:thumbsup: In all of the forums ive seen and read you have been a great sorce of info for people and seem to know alot. Could this be a PH problem or a possible nutri def?? I will Have pics up some time too day. I also have questions about flushing your plants like i said im new to the whole growing thing but i love it! i hope to hear from you soon O Wise ONE!!!!

[stinkyattic]

Sup Growgood, I stuck this in its own thread so people would see it. Just from the description, it sounds like an iron deficiency, but you should fill out the troubleshooting form and if possible post a pic. If you can't upload pics, you can put one up as your profile picture until you have more posts.
Iron def is often actually a lockout, so why don't you test the runoff pH of your soil and report back what you get.

[growgood]

Hey wow thanks alot! Like i said im new to all of this but here are some pics that should definitly tell you whats wrong.

Now there are burns on the bottom leafs but i was using mirical grow and did alot of reading and i have stopped using mirical grow which has stopped burning my leafs. I figured that one out LOL! but now like i said the top leafs are turning this crazy neon yellow color.I have a natural soil with perlite mixed in my self and have Maxigrow nut's. i have stopped using the nut's and have just been using normal tap water.What should i do?!

P.S. i will have the PH as soon as i can. Heres the pics.Thanks a Million for all the help!!:hippy:

[growgood]

S,indoor,organic choice mirical grow brand soil with mixed in perlite,tap water that has sat for 24 hours to let clorein evaporate, Age: 1 and almost a half month, fertilizer type is Maxigrow,feed about 2 times a week but none recently for obvious reasons,light sorce is Two florecent 20 watt bulbs one a plant and aquarium bulb and the other a sunshine bulb.I plan on investin in a grow-lux light and the lights are 3-4 inch above the plants,The temp in the room is a warm 67-73 Degrees,i have the plants on a 24/0 sched right now but i also plan on investing in a timer and putting them on a 12/12. The room isnt vented but there is only two plants in a 6'x6'1/2' room and some times i leave the door open,I also open the door extra hard twice every time i open the closet to push air around the room and i go in the closet at least 4-5 times a day to check on my girls so it gets a good amount of ventalation.

So thats my set up! Please I need all the help i can get as you can see,I need all the advice i can get!! Thanks a Million once Again!!!:stoned:

[stinkyattic]

Looks like iron deficiency or lockout from here...
IF you poke around the lawn care section of a hardware store, there is a product by Shultz called 'Iron Green' which you can mix up WEAK WEAK WEAK and use as a foliar spray.
But usually your nutrients should have plenty of Fe in them, so I assume that the iron is actually locked out by too much OTHER fertilizer in the soil/nutes or your pH is off.
You can actually run your room warmer than that by the way, up to the low 80s.
So get your pH test kit handy and check the runoff out of the soil. You may also want to flush your plants, and then give them a nice feeding with a complete fertilizer. I'm not familiar with MaxiGrow... what are the numbers on it, and if you read the fine print on the back, does it have a complete set of micros too? (Fe Zn Mg Mn Ca B)

[growgood]

Thanks again stink! I really appreciate all the help. So about my Nut's ,I purchased the at a local hydro shop and it does have all the good stuff in them,this is a list of what is in the Nut's

N,Ca,Mg,S,Fe,Mn,P2O5,K2o.

So It sounds like and looks like to me that i've got some good nut's....I better i paid like 50 bucks for them lol:stoned:

Also like I said i have just been using normal tap water and woke up this morning to check on the girls and the one plant looked better allready the top leafs are turning a normal color green.About the FLUSH im not all that sure on how to flush the soil.Do i just neeed to flush it out with a lot of water?? and then let it dry out,and then feed the plant.And then start it on its normal feeding sched?

Also what do you think of the 12/12 cycle would you recomend something eles or is that going to be the best option for lighting sched with such low powered lights?

P.S. Once agin thanks a million o wise one

[growgood]

P.S.S. The numbers on my nut's (maxigrow)10-5-14.

[stinkyattic]

Okay cool.
Those plants- they look like you got them as clones? Often the low growth on clones looks scraggly at first as they adjust to life off the mom.
Flushing... I think there is a sticky on how to do that somewhere, or in the FAQs but basically, pour through 3x the volume of your pot using water adjusted to a correct pH (you check the runoff pH and then make a flush solution that will make it go to the correct SOIL pH when combined), then immediately water with your regular grow fert at half strength.
If new growth is already greening up, you might not even have to worry! Also if your grow fert has micros in it (it does I see), you can make a weak dilution to use as a foliar feed, just with everything, go easy...less is indeed more!

[growgood]

Wow you are AWSOME. Thanks so much for the help. I will get right to it and flush them babies out! Thanks again!!! i will post some more pics in about 2 weeks or so, so you can see your help in Progress.:jointsmile:

Thanks a million!:thumbsup: