Proper watercress EC?

by Ray
(Thailand)

Hi Stella,


I'm growing some Arugula and my EC is 3.3, but I'm getting a yellowish tint to some of the leaves and the veins in the leaf is green. What can be my problem? I raised my magnesium and got minor improvement.

Also can you tell me what is the correct EC for watercress?

Best Regards Ray
----------------------------------------------------------

Answer from Stella/Simon:

Hi Ray,

To be honest, we have never grown arugula or watercress. But if you will refer to the chart on this page:

http://www.getbluelab.com/Articles/Nominal+EC+Values+for+Hydroponic+Crops.html

watercress is the last crop listed, and it looks like your solution is way too strong, for most crops listed.

Hope this helps!
Stella

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