Feeding chart question NPK/EC value

[Mr.Miguardi]

Hi guys!
After my first hemp grow harvested 2 weeks ago the result was quite good to be the first grow and i learned a lot of thing about plant, nutrient and RDWC cultivation (indoor).

In my second try i want to make a more refined feeding chart since i've learned that i can't 100% trust the official feeding chart from the producer website (ATAMI Bcuzz) that give me way too much K, low P and was too difficult to balance.
Searched a lot on the web and using Hydrobuddy i simulated all my nutrient (hydro A, B, Cal Mag, etc) and made this chart, basically i added a N booster and a P booster to better balance the NPK and Epsom Salt to provide S.

* value are in ppm and EC values include EC of my plain water from the faucet

But if in my last grow i raised the EC to 1.6 in flowering with this NPK chart my EC don't go beyond 1.4 in veg and around 1.2/1.3 in bloom.
Can this be true or i'm risking to make a big mess? are EC only indicative since my ppm value should be optimal?
my simulation are based on the composition label of every nute i use so my EC might be different in real life.

 

[dbrzz]

Hi guys!
After my first hemp grow harvested 2 weeks ago the result was quite good to be the first grow and i learned a lot of thing about plant, nutrient and RDWC cultivation (indoor).

In my second try i want to make a more refined feeding chart since i've learned that i can't 100% trust the official feeding chart from the producer website (ATAMI Bcuzz) that give me way too much K, low P and was too difficult to balance.
Searched a lot on the web and using Hydrobuddy i simulated all my nutrient (hydro A, B, Cal Mag, etc) and made this chart, basically i added a N booster and a P booster to better balance the NPK and Epsom Salt to provide S.
View attachment 1220023
* value are in ppm and EC values include EC of my plain water from the faucet

But if in my last grow i raised the EC to 1.6 in flowering with this NPK chart my EC don't go beyond 1.4 in veg and around 1.2/1.3 in bloom.
Can this be true or i'm risking to make a big mess? are EC only indicative since my ppm value should be optimal?
my simulation are based on the composition label of every nute i use so my EC might be different in real life.

EC is electrical conductivity measured salt content. it cannot measure each individual element in your nutrient for strength. However. If you have the ability to add nitrogen potassium phosphorus individually you could measure via EC the strength of each element. If all three are mixed together it’ll just give you the total of all of them.

 

[N1ghtL1ght]

A few latest studies on cannabis nutrition suggest an increase in harvest mass by keeping nitrogen high during flower.
Phosphor only towards the end (last 2-3 weeks) and K increase was almost irrelevant.
That feedchart looks like it has used garden vegetables as its base.

 

[dbrzz]

A few latest studies on cannabis nutrition suggest an increase in harvest mass by keeping nitrogen high during flower.
Phosphor only towards the end (last 2-3 weeks) and K increase was almost irrelevant.
That feedchart looks like it has used garden vegetables as its base.

Are you sure you didn’t get that reversed? Most information I have is that potassium is more important than phosphorus in the flowering period towards the end, to support flower terpene production.

 

[N1ghtL1ght]

Are you sure you didn’t get that reversed? Most information I have is that potassium is more important than phosphorus in the flowering period towards the end, to support flower terpene production.

Terpenes?
I'm talking about total harvest mass. Terpenes carry very very little weight, they constitute only 1-3% of total cannabinoids.