Ppm

OldMedUser

Well-Known Member
So I shouldn’t worry about ppm because I’m growing with soil and shouldn’t be adding any nutrients at all?
Eventually you'll have to add nutes. When to start depends on the richness of the soil you are using. I'd watch for yellowing of lower fan leaves before starting extra feed.

In pots of soil/soilless I don't check ppm but go by mls/L. My AN 3-part says 4mls/L but I will use 1 or 2/L and rarely 3 much less 4.

The plants kind of tell me when they want more or I just guessimate it from experience.

In DWC I start clones at 300 and add more nutes as they grow and rarely change nutes.

:peace:
 

felicianick

Member
Eventually you'll have to add nutes. When to start depends on the richness of the soil you are using. I'd watch for yellowing of lower fan leaves before starting extra feed.

In pots of soil/soilless I don't check ppm but go by mls/L. My AN 3-part says 4mls/L but I will use 1 or 2/L and rarely 3 much less 4.

The plants kind of tell me when they want more or I just guessimate it from experience.

In DWC I start clones at 300 and add more nutes as they grow and rarely change nutes.

:peace:
Thank you very much for your help
 

OldMedUser

Well-Known Member
For mature plants I use 1100 -1600 ppm in ffof, depending on heavy feeder or not
-good luck
A lot heavier than I ever use and I sometimes burn my plants. I know 1ml/L of all 3 parts gives me almost dead on 330ppm. I measured the ppm as I added 1ml/L each to two tubs that hold 30L each.

Grow is 85ppm at 1ml/L
Micro is 140
Bloom is 110

A little simple math and you can fine-tune your feed for different stages of a plant's growth. Some bottles have different things than the others so as long as you compensate for anything you're not giving them it all good.

:peace:
 
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