Ph Problem Or Nute Deficiency?

B

badbrad1

Member
Hey guys, am new to the forum but been reading loads of threads on here.

ive got a major problem or just sorted it, not sure but would like opinions from advanced growers. I got about 10 plants from seed grown on windowsill ready to go outside. all of a sudden my bottom leaves are turning yellow slowly and falling off. they are in gold label allmix soil and been on the windowsill or ouside on nice days. not only are they turning yellow and falling off but new growth on top is twisting and deformed(blistered effect on leaves) and a sort of lime green colour. ive read loads on it and came to the conclusion its ph or nutes?
tested soil ph with a soil/moisture meter from b&q and it reads a ph of 7, i was using boiled tap water which is about ph of 7(greenish colour in testtube test kit)i then flushed them with tap water down to ph of 5.8) im now waiting to see what happens, ive got a few pics but nothing to good. do you think it is ph problem or nute deficiency, nitrogen or magnesium??

all comments will be appreciated bb1
 

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hey brad ur plants looks good to me mite b stretchin a lil bit but otherwise looks prtty good. the cotyledons (oval leaves) are suppose to die off as ther finished doin ther jobs. have u gave them fertilzier yet? if not then go ahed and start bout 1/4 str. and the "crinkled leaves" cood jus b in the genetics. also ur new growth will b a lighter color then the rest of the plant
 
how are those things alive? get them some more light pronto! then worry about nutrients. Your stem should only be about an inch long. When it gets longer then that it is "stretching" for light which has a negative impact on growth. The more abundant the light the less the stretch to find it. Bury the stem that is exposed before you move them that will help you a lot further down the road. If you bury the stem it will convert to roots and help strengthen the plant. Good luck hope you get things growing!
 
...they look good to me. I'd get them outdoors asap though. Don't forget the rapid release dolomite lime to keep your pH in check...
 
Um...a PH of 5.0 is too acidic for soil grows, so flushing wasn't a good idea. 7.0 is fine to grow in, waaaaaaay better than 5.0, with 6.2.-6.8 being what most guys shoot for. Sorry for the bad news, but I had to warn you that you're in for trouble soon, if you don't get that PH back up to an acceptable range. :)
 
yea I dont know why you did what you did, PH was fine, there is no PH problem with those plants, maybe a little overwatered or not enough light, but those plants look fine, like the above post... with 5.0 now you will probably be running into problems that you just created yourself.
 
thanks for all the speedy comments guys, i really do think i had a problem though, the pics are from today and i flushed 3 days ago. they were really yellow and deformed and i read somewhere that it is possibly a magnesium deficiency which i assumed was locked out due to ph being to high.now they seem to be looking ok. my soil ph meter says soil is 7, is that ok to use. what is the best water to use? buy distilled, tap water or rain? ive also got vitalink earth, grow for veg and bloom for flower has anyone had good yields with these and ive got rhizotonic which i was foliar feeding(do you think that couldve blistered the leaves?)and im going to bury the stem when i repot tonite.

cheers guys you been good

oh yea, was gonna repot to 3 gallon pots and fill with gold label all mix then bury pot in the ground incase i need to move them for any reason, or what do you guys suggest
 
and someone said they should only be an inch long, they are about 8 wks old now. i thought they should be about twice the size they are.
 
hey guys, ive read when flushing plants you need to read the ph of the runoff! is this correct? and then adjust accordingly. ive had a problem and decided to reflush again as the problem got worse. ive purchased a ph meter instead of the solution and on my good plants the runoff is 5.4 and 5.3 and on the plant in the picture it is 6.5, the 1 im having a problem with. this is confusing me, surely it should be the other way around. this wk im on a mission to save them (i have 2 plants like this) im open to any advice and willing to try anything in reason. they are outside from 6 am - 10pm then come inside. im planning on putting them outside permanently but we are getting to much rain atm and i cover them with a glass sheet when it does. they are in gold label special mix http://www.specialmix.nl/joomla2/index.php?option=com_content&view=article&id=31&Itemid=3 Is any one else using this, i would like to know the ph of water you feed and your runoff ph



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thanks all roi members
 
some of the responses people post tell me that they couldnt grow a plastic plant if they had to. your plants have a ph problem my friend. the leaves gowing retartedly are a sure sign of it. water your plants next time with distilled water and check the ph of the runoff like you mentioned. a growers best friend is dolomite lime. it provides calcium and magnesium to the soil, but most importantly, it buffers the soil ph at 7. it is impossible to screw up, fool proof. add about a 1/4 cup per five gallons of soil. it will take some time to take effect, but i promise u it will work. best thing to do is add it before you plant, but it will work if you add it later and work it into the soil as best you can. they look as if they need transplanted anyway. add the lime, get bigger pots, use a 1/2 strength nutrient, and let the top later of soil dry out before you water again. bet it helps
 
hey moz324, thanks for the comment but the reason i put the link in my post was so members could read up a little on my grow media. i see you have 7 posts so your an expert yourself are you? if you had been bothered to read it you would already know it is buffered to 7 with lime and no need to add any. but thanks for the comment anyway
 
well a lot of you sound convincing-----but the plants are fine they look to be yellowing as they should as many times as you flushed them a 1/4 strength all in around fertilizer would be in order. Dolomite Lime is more for outside soil grows and usually takes about 6 months to effect the soil. FYI
I like to keep my plants in a 6 ph soil seems to work very well/ If you get a big swing in PH you will sometimes more then less destroy the nutes in there and they become a toxic salt. So best if you get a decent soil FF is nice so is Scotts too, Most are adding nutes anyways so it is really just important to know what is Already in the soil instead of saying one is better then the other. Yes one is better then the other but both can be equal with some added nutes.
I would think that if you use PH balanced water via PH down It is buffered so it is more stable. Ph to 6 and water you plants---- with new soil you should have no pH climb unless your lights are on longer then 17 hours a day. No need for lime or Gypsum etc... Use Pete moss to blend or cut your soil as it is usually at 5 ph and no higher.
 
thanks guys, i was using the solution ph and chart but now got a meter. i flushed with deionized water, added rhizotonic and wot i dont get is had to add ph up to 5litres and ph down on the next 5litres until i got a reading of a ph of 6.5 and runoff was read at 6.3 - 6.4 on some and as low as 5.3 on others, this is the grow media (please read about it as it says ph 5.2 - 6.2) http://www.specialmix.nl/joomla2/index.php?option=com_content&view=article&id=31&Itemid=3 (pretty sure the plant in pic, runoff was read at ph 6.4. they are outside from 6 am - 10pm and was fed with a 1/4 strength nute afterwards and nothing since.P200510_07.52.jpgP200510_07.57[02].jpgP200510_07.51.jpgP200510_07.50.jpgP200510_07.58[01].jpgP200510_07.57.jpgP200510_07.57[01].jpgP200510_07.53.jpgP200510_07.52[01].jpg
please take a close look at pics because some leaves are burning so much they are getting holes ang tears, ive also added other plants to compare as they are going real good. ( 1 of the pics is a stem with a slice across it!!! an ideas how that couldve happened?)
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i cant believe this thread has had 307 views and only 8 replies, that leads me to either there are loads of other people out there with the same problem or there are hardly any experts here or not willing to help. lets all talk about problems and help each other out, after all this is the plant problem forums so if your viewing feel free to contibute some words.
 
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