leon420

original sour diesel Nitro deficiency? PH lockout?

4 posts in this topic

Original sour diesel 3 weeks veg can't work it out whats wrong

ph perfect nutes

ph reading 6.9

ec 1.3

 

IMG_5082.JPG

IMG_5083.JPG

IMG_5087.JPG

IMG_5085.JPG

Share this post


Link to post
Share on other sites

ph of 6.9 might be a little high for cannabis.  Here's a link to charts showing which minerals are absorbed at which ph's:

https://www.420magazine.com/forums/indoor-soil-cultivation/114733-ph-nutrient-uptake-charts.html

 

I'd be tempted to do a flush with very low ec/ppm water(run off rain water, etc) with ph'd 5.8-6.0 water and flush until the run off is ~6.0.

 

What is in your growing medium (I found that some mediums hold alkalinity and ph is very hard to get down) @leon420

Share this post


Link to post
Share on other sites

Hi

It appears to be in DWC, if this is the case your water should be ph 5.5-6.0 in veg

growth, this appears to be root problem, check for brown and smelly roots.

Make sure of an air gap between water and bottom of net pot and if using

rockwool as medium make the air gap larger, keep temps below 20c.

hope this helps

PEACE

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now

About us

Strain Hunters is a series of documentaries aimed at informing the general public about the quest for the preservation of the cannabis plant in the form of particularly vulnerable landraces originating in the poorest areas of the planet.

Cannabis, one of the most ancient plants known to man, used in every civilisation all over the world for medicinal and recreational purposes, is facing a very real threat of extinction. One day these plants could be helpful in developing better medications for the sick and the suffering. We feel it is our duty to preserve as many cannabis landraces in our genetic database, and by breeding them into other well-studied medicinal strains for the sole purpose of scientific research.

Social Network

Add us on social networks