PPM
If you have a million units of a mixture, how do you describe its contents ?
Create a table of the components based on the units and create a "short hand" notation for the relationship.
How many parts of the million are there?
We could choose the number of atoms as our units of reference, but that would require us to keep writing a lot of zeros and to do more math than is actually needed.The "practical" lab based system, that has been in use since the early 1900's, uses the notation of grams of an element in grams of water.
There are 1000 grams of water in a liter at 39° F. or 4° C.. So if we have a thousand liters of water, (about 264.17 gallons; – 1 gal. = 3.7853 l.) there would be a million grams (1,000,000 g.).
If then, we have one gram of an element, such as nitrogen, disolved within the total million grams of solution, we would have a solution with 1 ppm of N ( One part of Nitrogen within a million parts of solution. )
In hydroculture, we are accounting for more than 30 different atoms, in our water solution. A good growing solution, will have a concentration of atoms, in a range extending from about 0.005 PPM to 200 PPM. for each element. The atoms we are interested in, either are building blocks for the plantary Life Cycle, or are antagnostic, to the growth process.
Each atom, needs to be present, within a special range for each life type and the general rule, Twice Optimum is Toxic, applies in almost all cases.
30.58 Gal FoodCon. Quanity to make in gallons --> 520
Total Salt Concentration ---> 585.63 ppm
10.44 Dollars per Order.
Atom Total PPM Mineral Salts Grams Cost/Lb
----------------------------------------------------------------
N 180.3606848 PPM Ammonia Nitrate 0 1.35
P 76.21176709 PPM Urea 150 0.60
K 156.3388923 PPM Potassiun Nitrate 500 1.10
Ca 89.46245300 PPM Potassium Chloride 75 0.80
S 25.22345290 PPM Potassium Phosphate Dibasic 0 2.70
Mg 18.80525353 PPM Tricalicum Phosphate 0
Cl 18.17768671 PPM Calcium Nitrate 800 0.54
Fe 19.56102022 PPM Calcium Chloride 0
Mn 0.495376486 PPM Magnesium Sulphate 375 0.40
Cu 0.129305964 PPM Magnesium Nitrate 0
Zn 0.115537038 PPM Magnesium Biphosphate 0
B 0.489025505 PPM Ferric Ammonium Citrate Brown 220 12.50
Mo 0.040290620 PPM Ferric Citrophosphate 0
Co 0.044047861 PPM Potassium Permanganate 0 3.47
Ni 0.029722589 PPM Manganese Sulphate 3
I 0.038842597 PPM Copper Sulphate 1 2.51
Na 0.019317142 PPM Zinc Sulphate 1 2.73
Cr 0.001796565 PPM Zinc Nitrate 0
Ba 0.001428208 PPM Boric Acid 5.5
V 0.001300680 PPM Molybdic Acid 0
Se 0.031104562 PPM Sodium Molybdate 0.2
Sn 0.001336246 PPM Cobalt Chloride 0.35
F 0 PPM Cobalt Sulphate 0
Li 0.050858652 PPM Nickel Ammonium Sulphate 1
O 531.1151803 PPM Potassium Iodide 0.1 93.70
C 15.41845340 PPM Sodium Chloride 0 0.11
H 15.32486789 PPM Potassium Dichromate 0.01 4.35
H20 303.801646 Gm. Barium Chloride 0.005 2.90
Vanadyl Sulphate 0.01 213.38
Selenious Acid 0.1 181.60
Stannous Chloride 0.005 15.43
Lithium Citrate 1 45.06
15% N - 30% P - 15% K 500 1.25
Here is a
test plugin for your Web Browser, created by Office 2000,
that will sum the mineral components, adjust solution concentrations,
estimate cost, etc.
I have not have a chance to fully test it.
It is based on a 123 spreadsheet (above) that I wrote a decade ago.
If you are a serious grower, or researcher ...
you should find this program or spread sheet useful in your work.
Download a Hydroculture Spread Sheet Program & Spread Sheet.
455K self extracting package — for 8088+ IBM machines
Download Only the Spread Sheet
Works well with Excel
Hydroponic Reference Center
—
What is pH ?
The Tortoise Shell Life Science Puzzle Box Front Page