p h coir

[swamp man]

how to check root zone ph?

 

[Lee Van Kief]

https://www.icmag.com/ic/showthread.php?t=46490

 

[Sirius seeds]

how to check root zone ph?

here is a tip who looks interesting :
Checking the nutrient levels within your coir

Coir holds onto nutrients more so than other hydroponic growing media and just checking the run-off does not always give an accurate picture of the nutrient strength in the coir. The procedure below is known as a 1:1.5 extraction, and can be used to give a more accurate representation of what is occurring in the coir:

1. Take a 250ml measuring jug and fill it with 150ml of de-ionised or reverse osmosis water.
2. Remove small samples of coir from as many places as possible in the slab/pots.
3. Add the coir to the water until it reaches the 250ml mark.
4. Mix and allow it to settle for at least two hours.
5. Filter and measure the EC/CF.

http://www.aquaculture-hydroponics.co.uk/hydroponics-advice/growing_media/growing_in_coco_coir.html

 

[Sirius seeds]

oh my bad im not well awake, the OP asked about Ph not Ec...sorry...but its still a good tip :