can lack of nutes look like nute burn?

[captinknots]

these leaves look burnt. this soil has a NPK of less then 1-1-1. havent fed them because they immediately looked burnt up..... so im going to half strength some nutes for em anyway because they have been in these little ass pots for over 2 weeks and grown like 2 inches. the clones had a great root base when started. sprinkled oranism mycohyzle? on roots before dropping them in soil. (aeroponic clones)

 

[NUG-JUG]

Maybe time to transplant? 2 weeks is a long time in a tiny pot

 

[captinknots]

i did today into 1 gals. roots looked pretty good.

 

[fonzee]

maybe its a PH issue?

 

[growingcrazy]

I think that you should have been feeding a from a much earlier age. Let us know what happens when you give it some food.

 

[captinknots]

i fed yesterday. no changes yet. ill let you know tho. im starting to think the ph of this soil is high to begin with.

 

[rckymtnthuglife]

I don't fertilize my plants until they are much bigger and (healthier) than that. Your plants are super dark green with some burnt edges...usually means ya burned em...except some of those leaves are yellowing between the veins.

What is your soil mix? Even the small plants in the background don't seem to be digging it.
I like Roots organic for clones.

 

[fonzee]

if you got a prefertilized mix you DON'T need to feed them for another 2 weeks or so.


Check your PH. 6-8 is where you want it.

 

[Mr. Greengenes]

Our water is not only hard, but last time I measured, the PH was in the high 7's. One 'Godbud' cut we have always looks like the one in your picture in any size cup, unless it's watered with PH corrected water. 2tbs. of distilled (or apple cider) vinegar to the gallon of water drops the PH long enough for the plant to get whatever might be 'locked out' by the high PH. If you have the same problem, it's an easy experiment. If it is your problem, the plant will show immediate signs of improvement.

 

[zen_trikester]

How are your temps? I have fixed similar problems by bringing down ambient temps. I had some pantyhose over my carbon in one of my cabs and didn't have a filter on my intake. The pantyhose got clogged with dust and it caused my cab temps to go way up and all my plants stunted and started to show deficiencies. It is important how you measure too... roughly at plant height and shaded from direct light. If you have access to an infra-red temp gauge you can check the temp on the surface of the plant too, but it doesn't look like they are getting fried by radiant heat or you would have some lightburn I think.

Jed

 

[fonzee]

My tap is 7.9PH. At times up to 8.6PH.
No problems.

 

[spadedNfaded]

I have vegging moms in 16oz cups that are 1.5ft tall. If you feed right and have a good stable PH, the rest should fall in line.

- SubN

 

[someotherguy]

My tap is 7.9PH. At times up to 8.6PH.
No problems.

i'd say you DO have problems with your PH that high,
in soil you should look to bring it down to around 6.8,
in hydro i think you want it about 5.8.

7.9 to 8.6 is WAY too alkaline IMO.

peace, SOG

 

[zen_trikester]

i'd say you DO have problems with your PH that high,
in soil you should look to bring it down to around 6.8,
in hydro i think you want it about 5.8.

7.9 to 8.6 is WAY too alkaline IMO.

peace, SOG

That's his water though not his soil SOG. If you put something base with something alkaline you get a reaction. Think baking soda and vinegar. If he has a lot of peat and other low ph things in his soil would it not in theory break things down further? This is my logic speaking btw, I don't fully understand the concept of organics yet. My tap is about 7.5 to 8 as well and I don't touch it, plus I use a fair bit of lime. On rare occasions when I use fish or other acidic liquid ferts I don't ph that either. Its my understanding that that kind of up and down fluctuation is ideal for best uptake of nutrients.

Jed

 

[captinknots]

my temps are good. mid 70's. im certain its ph. all my problems are with ph. im using RO water now and its like6.2 to 6.5. for some reaason when i check ph of ro water it fluctuates....

 

[jolee]

My tap is about 7.5 to 8 as well and I don't touch it
Jed

+1 my friend

If growing in a decent pre fertilised compost then theres really no need to worry about ph because the compost will buffer it itself, and remember when feeding with an organic food, the plant will not show an immediate effect seeing as the microherd in the rootball has to break the food down to make it available to the plant. So it can be a few days before you see a change

In my experience if you pot up in stages then there should be no need to feed at all in veg, seeing as the compost should do this for you

The only time i would be concerned about ph when in compost is if it is over 8.0 from the tap(stood 24hrs for a true reading), then i would only bring it down slightly

 

[captinknots]

compost is super alkiline right?

 

[fonzee]

i'd say you DO have problems with your PH that high,
in soil you should look to bring it down to around 6.8,
in hydro i think you want it about 5.8.

7.9 to 8.6 is WAY too alkaline IMO.

peace, SOG

Its soil, not hydro.
A good soil buffers the PH itself. If it contains enough alkaline and acidic elements they create a buffer, and a good soil should have that.
For instance, the pH of most of the fertile soil in Israel is around 7.3-7.5 and you can pour as much vinegar as you wish and it will barely change anything for more than a week.


My soil pH is around 7, which is good as far as I'm concerned.

Even at soil pH of 7.8-8.0 I don't usually have problems.


In hydro \ soilless when you don't have anything to buffer the pH its much more crucial to adjust the pH.