Brown Spots Showed Up Today. Help Needed.

[Leew421]

Soil is a pH buffer. It's design is to balance pH. When you add that stuff in the mix it causes the soil to get out of whack. Should be saved very very needy times

 

[Monster762]

everything I've read says no ph up or down in soil. Plus if tap ph is high most nutes lower ph some.

 

[JackD]

everything I've read says no ph up or down in soil. Plus if tap ph is high most nutes lower ph some.

Everything I've read says that ph above 7 or below 6 will interfere with nutrient availability and cause deficiencies. I've seen charts all over the place that show the availability of nutrients at different ph levels and while they vary a little, they all seem to agree that it should be somewhere in the range of 6 to 7.

When I add my nutes, they do lower the ph a little, but depending on how long I've left the water out, it can be as high as 8 and after adding nutes, it's still around 7.5.

 

[Leew421]

The soil itself buffers that last bit

 

[tinderthumbs]

Soil is a pH buffer. It's design is to balance pH. When you add that stuff in the mix it causes the soil to get out of whack. Should be saved very very needy times

THIS IS NOT 100% RIGHT its the stuff in the soil that buffers the ph as in the lime if u don't have lime u will not get a buffer and the ph will go where it wants

 

[tinderthumbs]

everything I've read says no ph up or down in soil. Plus if tap ph is high most nutes lower ph some.

where u getting this info

 

[tinderthumbs]

all I see is u said u using soil what soil u using not all soil is the same

 

[JackD]

THIS IS NOT 100% RIGHT its the stuff in the soil that buffers the ph as in the lime if u don't have lime u will not get a buffer and the ph will go where it wants

Maybe I should have, but I didn't add any lime to my soil. I'm using Just Natural organic potting soil from Walmart, mixed with 30% perlite. Until the brown spots showed up, the plants have been doing great and the soil drains well.

 

[Leew421]

THIS IS NOT 100% RIGHT its the stuff in the soil that buffers the ph as in the lime if u don't have lime u will not get a buffer and the ph will go where it wants

I'm assuming he has a soil mix with the needed amendments. What I use is ready and works well

 

[Leew421]

Check that bag and see what's in it

 

[JackD]

Check that bag and see what's in it

Peat moss, processed pine bark, composted forest products, worm castings.

 

[tinderthumbs]

Maybe I should have, but I didn't add any lime to my soil. I'm using Just Natural organic potting soil from Walmart, mixed with 30% perlite. Until the brown spots showed up, the plants have been doing great and the soil drains well.

Im not saying add lime im saying its the lime that buffers not the soil


I have a soil less mix that has lime in it its just . .peat perlite and lime

could we get a pic of the list of whats in your soil I tried looking up the name u said u used and nothing came up

 

[tinderthumbs]

Peat moss, processed pine bark, composted forest products, worm castings.

the tree bark is going to make the ph swing as it breaks down

 

[tinderthumbs]

if u are in soil u need to test your run off and see what ph its at

 

[JackD]

if u are in soil u need to test your run off and see what ph its at

I did check the runoff from my last watering. I had ph'ed the water going in to 6.4. Runoff tested at 6.3

 

[tinderthumbs]

how did u test your run off?

 

[JackD]

how did u test your run off?

I've got this ph meter
https://www.amazon.com/gp/product/B00YBUH4RC/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

I watered all 8 plants and collected all the runoff in a bucket, then measured with my tester.

 

[tinderthumbs]

imo u need to test run off of each plant that is having problems

 

[dnewsome2]

Try a little unsulphured molasses it will contain calcium and magnesium plus other minerals and potassium

 

[Toaster79]

Try a little unsulphured molasses it will contain calcium and magnesium plus other minerals and phosphorus

Add some EWC on top of that and brew it for 12h.