[spurr]

Oh yea,

I designed my methodology so that anyone can make use of my efforts, even if they don't wish to use my cannabis nutrient formulations. I foresee tomato growers, orchid growers, et al., using my methodology in the future. As well as I foresee growers here using my methodology while using there nutrient formulations (ex., Yosemite Sam, Tester, Avenger, etc, etc., etc.).

[spurr]

Originally Posted by SOTF420

Spurr is out of control man he is on a whole nother level

Some amazing work here if you can use it and put it to work

Much love Spurr!

TY And I'm off to bed (for realz this time yo!)

[trichrider]

it's full of stars...nice werk Spurr. i'm shitting myself.

[xmobotx]

all good stuff Spurr - cutting edge

Just about to finish veg gonna have to get some reading and watching done

all bud.... all bud....all...bud
hidden treasures!
secret cannabis info!

is that it?

[spurr]

Originally Posted by DonkDBZ

Just about to finish veg gonna have to get some reading and watching done

all bud.... all bud....all...bud
hidden treasures!
secret cannabis info!

is that it?

Yup ... gotta love ALL BUD!


I would have spoken in the video, but my voice is wayyyy more effeminate than Crush's, so I didn't want to be eviscerated by you meanies! (j/k)

[spurr]

Oops,

I forgot to list the needed amount of potassium carbonate, potassium silicate, citric acid, sulfuric acid 35% (veg and early-flowering) and phosphoric acid 75% (full flowering), if a grower chooses to use my educated best guesses. That is, RO water pH (6.0) and alkalinity (5 ppm), increase in pH from potassium carbonate (i.e., 1.18) and increase in pH from potassium silicate (i.e., 2.0). Instead of (ideally) testing their aqueous solution pH and alkalinity after adding to RO water potassium carbonate and potassium silicate, and entering that data into Bru'n Water.

Here are the needed quantity of bases, acids and potassium silicate (where silicon dioxide is converted into silicon once mixed with water, and then the silicon is converted into plant usable "orthosilicic acid" which is used at 1 mM (~30 ppm) to over 5 mM):

Vegetative formulation:

• 0.096 g/L potassium carbonate
• 0.324 g/L potassium silicate (as AgSil 16H) for 80 ppm Si
• 0.024 g/L citric acid
• 0.081 mL/L sulfuric acid (35% purity)

Early-flowering formulation:

• 0.096 g/L potassium carbonate
• 0.405 g/L potassium silicate (as AgSil 16H) for 90 ppm Si
• 0.024 g/L citric acid
• 0.081 mL/L sulfuric acid (35% purity)

Full-flowering formulation:

• 0.096 g/L potassium carbonate
• 0.356 g/L potassium silicate (as AgSil 16H) for 90 ppm Si
• 0.024 g/L citric acid
• 0.058 mL/L phosphoric acid (75% purity)

NOTE:

The quantity of citric acid, sulfuric acid (35%) and phosphoric acid (75%) will change if you test and use the pH and alkalinity of YOUR aqueous solution instead of using my educated guesses of pH 9.0 and alkalinity of 76 ppm CaCO3. If you use test results (data) of YOUR aqueous solution, re pH and alkalinity, the resulting final alkalinity will be different than using my default values of pH 9.0 and 76 ppm CaCO3.

• The goal is final alkalinity greater than 20 ppm CaCO3 (re pH buffer), final pH to be 5.8-6.0 and greater than 0.01 g/L citric acid (re pH buffer).

[rootfingers]

Hey spurr, thank you.

[Critter]

Thanks for putting in the work to post that Its much appreciated!

[spurr]

NOTES:

1. I forgot to write in this thread (but it's noted in my video and files), that when you use potassium carbonate and citric acid, make sure to add them both (into separate containers!) to water for an aqueous solution of the base (K2CO3) and the acid (citric). Then add the aqueous solutions to the reservoir in the correct order; don't add dry K2CO3 or dry citric acid directly.

2. For those running re-circulating systems, not drain to waste, I suggest reading the work of Bruce Bugbee. When I run re-circulating with a customized RDWC setup (re under current), I for one plan to use my starter solutions as shown in the screen shots, then for the refill solution (in a tank connected to reservoir via float value) I will use my starter solutions at 1/3 (or slightly higher) strength.

Nutrient Management in Recirculating Hydroponic Culture
Bruce Bugbee
Presented at the South Pacific Soil-less Culture Conference Feb 11, 2003 in Palmerston North, New Zealand
https://www.usu.edu/cpl/research_hydroponics3.htm

IMPORTANT:

3. I also didn't write in this thread yet (but it's noted in my video and files), that when mixing the stock solutions make sure to ONLY add 50% of the total water volume (i.e., 0.5 gallon), then measure the volume after adding the salts (e.g., 0.55 gallon), and subtract that new volume from the goal total volume (i.e., 0.55 gallon - 1 gallon). The answer (i.e., 0.45 gallon) is the volume you need to add to complete the 1 gallon stock solutions.

4. When mixing salts (direct addition) into reservoir or mixing tank, make sure to fill up the container with 95% (e.g., 95 liters) of the total water volume (e.g., 100 liters), then add all needed bases, acids and fertilizers (in the correct order!), then add the final 5% volume of water (e.g., 5 liters).