Seedling leaf problem


#1

I have brown spots on new growth of seedling how do I fix this need help QUICK


#2

Did you drip something on those leaves?

~MacG


#3

No they just stay outside it has got rained on alot could this be a ph balance I am growing in coco


#4

Yes, it looks like it could be pH or a nutrient problem.

~MacG


#5

Do you think it is deficiency or toxity and I will flush system with hydrated lime that should be good and every time I water plants should i use lime or not just once a week


#6

I can’t advise you one way or the other until we have a better idea, is the pH high or low? What kind of nutrients are built up in the media? What is the TDS/EC of the run-off? What is the pH of the run-off?


#7

6.5-7.0 some bat guano long time ago I flushed that put already dont have tester for run off


#8

What is 6.5 - 7.0?

To know if you need to bring your plant’s pH up or down, or if you have too many nutrients built up in the root zone, we need a measurement that is indicative of what is going on in the root zone right now.


#9

6.5-7.0 is the ph of the lime I am using I dont have testers


#10

Get a way to test, it isn’t that expensive, you can even find stuff at a local garden supply.

~MacG


#11

Also, is this the same seedling you had ash sitting on the leaves? This could very well be residual burn spots from back then.

I think you should read the whole e-book, I think you are misunderstanding something. The lime is alkali, if your soil has a pH at already say 7.0, adding lime will not make it better, maybe worse, it can raise the pH well above 6.5-7.0.

~MacG


#12

Yes it is same seedling with the wood ash thanks for the tip about the lime.
P.S. Dont you think that the seedling is growing very slow


#13

If it doesn’t have ideal conditions in the soil to be able to build a robust root system, if it doesn’t have a large healthy robust root zone it won’t be able to uptake lots of nutrients and the plant above ground can’t grow very big or fast.