Good afternoon chili heads,
What's a reliable way to calculate application rates per element (mostly macronutrients, NPK and Ca/Mg/S)?
Here's what I'm thinking.
I'm using a 7-4-10 fertilizer so that means any volume of unconcentrated fertilizer contains:
7.0% Nitrogen (N) = 70,000ppm
4.0% Phosphorus (P2O5) = 40,000ppm
10.0% Potash (K2O) = 100,000ppm
And so on.
Applying these fertilizers at a 1.25mL/1L H2O rate means that these components become diluted at a 1.25/1000mL or 0.00125 factor. Calculating the amount of elemental potassium, for example, in 1.25mL of fertilizer diluted in 1L of water would be:
100,000ppm x 0.00125 = 125ppm K2O or (125 x 0.83 K for every 1 K2O, which equals 103.75ppm K)
Please let me know what you think and/or if you see any issues with the rationale. I'm simply looking to keep track of my nutrient applications and would like to establish some means of calculating elemental application.
Happy growing! [emoji2420][emoji2420]
Thawing the frozen north one chili at a time...
What's a reliable way to calculate application rates per element (mostly macronutrients, NPK and Ca/Mg/S)?
Here's what I'm thinking.
I'm using a 7-4-10 fertilizer so that means any volume of unconcentrated fertilizer contains:
7.0% Nitrogen (N) = 70,000ppm
4.0% Phosphorus (P2O5) = 40,000ppm
10.0% Potash (K2O) = 100,000ppm
And so on.
Applying these fertilizers at a 1.25mL/1L H2O rate means that these components become diluted at a 1.25/1000mL or 0.00125 factor. Calculating the amount of elemental potassium, for example, in 1.25mL of fertilizer diluted in 1L of water would be:
100,000ppm x 0.00125 = 125ppm K2O or (125 x 0.83 K for every 1 K2O, which equals 103.75ppm K)
Please let me know what you think and/or if you see any issues with the rationale. I'm simply looking to keep track of my nutrient applications and would like to establish some means of calculating elemental application.
Happy growing! [emoji2420][emoji2420]
Thawing the frozen north one chili at a time...
