Factor in your fertilizer

Salt Smarts is a new hosted solution for agriculture enthusiasts, hobbyists, and professionals. Learn how to:

  • Make your own fertilizer
  • Save money on nutrients
  • Gain flexibility over your feeding regimen
  • Repond better to your crop

Need to learn more? No problem, we can get you started.

Already know how to use Raw Salts and need to quickly make a fertilizer? Look in the Settings for our Advanced Tools and Options.

Learn more » Jump Right In »


Want to learn more about what Salt Smarts is and what it can do? Maybe want to find out more about the powerful tools available to registered members? Take a look around, we got bomber jackets, manuals, even a mild sense of humor.

About » FAQs

Raw Salts

Raw Salts are fertilizer components, and in combining them you can tailor your own fertilizers, adjusted to your water, and create concentrates for a fraction of the cost of store-bought nutrients.
No High School Diploma required. We even have an unofficial For Dummies guide.

Raw Salts For Dummies Shop Salts »


There are 88 users that have stored 12 Water Source Profiles, have created 27 Fertilizer Profiles, tracked over 140 revisions to those profiles, all sharing a database with 44 different salts.

Create a Fertilizer

Selected Profile: NA1. Water Source

Every good fertilizer starts with good, clean water. It's fine if you're using tap water, just get it regularly tested for its composition. From there, you'll be able to build a better fertilizer building upon and utilizing the components already in your water.
There are many places to get your water tested, your local municipality might publish them yearly on their website, or your local university's agriculture extension. If options those are unavailable to you, we suggest Custom Hydro Nutrients for their quick turn around.

Note: Input parameters as PPMs

Selected Profile: NA2. Fertilizer Parameters

Ok, you got your base water figured out, now to supplement it with Raw Salts to create your own fertilizer!

Note: You can push your own fertilizers up to our mainstream for inclusion in this calculator AND you can export the data, save it on your computer, and import it later for futher use! Use the Tracking feature to plot your changes in your formula, and dial in manual adjustments once you computed some Results

Note: Input parameters as PPMs

3. Available Substances

Good, got the data. Now where are all those elements going to come from? Here are some common salts to work with, feel free to add your own.

Note: You can push your own substances up to our mainstream for inclusion in this calculator AND you can export the data, save it on your computer, and import it later for futher use!
You're missing a few components! Add a few more salts or revise your fertilizer formulation. Either way, you need to deal with
Substances & Properties Manufacture Chemical Formula Concentrate Type
Calcium Nitrate Yara Ca(NO3)2 A
PeKacid Potassium Phosphate Rotem Amfert Negev P2O5 B
Magnessium Sulfate Giles MgSO4 B
Potassium Sulfate Diamond K K2SO4 B
NovaMAP Monoammonium Phosphate Rotem Amfert Negev NH4H2PO4 B
6% Iron EDDHA Sprint 138 Fe A
10% Iron DTPA Sprint 330 Fe A
STEM Micronutrient Mix Scotts Peters S-B-Cu-Fe-Mn-Mo-Zn 0
AgSil 16H Potassium Silicate PQ Corp AgSil K2OSiO2 B
Magnesium Nitrate Magnisol Mg(NO3)2 A
PeaK Monopotassium Phosphate Rotem Amfert Negev KH2PO4 B
Potassium Nitrate Yara KristaK KNO3 B
Potassium Nitrate Haifa Multi-K PHAST KNO3 B
Dissolvine E-Zn-15 Akzo Nobel A
Dissolvine E-Fe-13 Azko Nobel A
Dissolvine E-Mn-13 Azko Nobel A
Dissolvine E-Cu-15 Azko Nobel A
Solubor Borax A
Potassium Chloride Generic 0
Sodium Molybdate Generic A
SoluGreen Ammonium Sulfate American Plant Food A
Potassium Magnesium Sulfate Diamond K B
PelaDow Calcium Chloride Dow Chemicals A
Zinc EDTA 14% Lidochem Performance ZnEDTA A
Copper EDTA 15% Lidochem Performance CuEDTA A
Manganese EDTA 13% Lidochem Performance MnEDTA A
Soluble Seaweed Extract Ferti-Nitro A
Ferti-Nitro Plus Ferti-Nitro A
Soluble Fulvic Acid Ferti-Nitro A
PG Grow Perfect Grower B
Hydroponic Special 5-11-26 Everris Peters Professional B
Ammonium Sulfate 21-0-0 24% Sulfur 0
Cal-Mag Plus 0
Copper Sulfate Pentahydrate Crystal 0
Manganese Sulfate 0
MonoAmmonium Phosphate 0
Potassium Sulfate 0
Zinc Sulfate 0
Solubor 0
molybdenum 0
Jacks 5-12-26 Powder
13% FeEDTA Dissolvine 0
15% B glycine Dissolvine 0
Master Blend Tomato Fertilizer Part A
Mendocino 5-11-26 Grow More 0
Mendocino Mix Grow More 0
Mendocino Mix 1 Grow More A
jacks blossom booster 0
jacks blossom booster 0
Molybdenum 8% Organic Glycine Chelated JH Biotech A
Boron 15% Organic Glycine Chelated JH Biotech A
Molybdenum 8% Organic Glycine Chelated JH Biotech 0
Zinc 20% Organic Glycine Chelated JH Biotech A
Iron 18% Organic Glycine Chelated JH Biotech A
Manganese 18% Organic Glycine Chelated A
Copper 17% Organic Glycine Chelated A
Dissolvine E-CA-10 Chelate 0
boric acid 99% custom hydro B
boric acid 9% custom hydro B
boric acid custom hydro B
Master Blend TOM 0
CalNit A
CalNit q A
Thiamine(B1) 0
Magriculture Magnesium Sulfate 0
Magnesium Sulfate Magriculture 0
Anhydrous Calcium Chloride Pellets 0
sst 0
CalCarb Mississippi Lime 0
Sodium Molybdate 0
Romeo 0
Romeo Soluble Fertilizer Powder
Sodium Nitrate A
MagPhos ICL 0
MagPhos1 ICL 0
Calcium Sulfate 0

4. Calculation Parameters

Almost there!
Just a few more questions, like if you're adding directly to a fresh resovoir/new juice to top off or making a concentrated A+B/+C solution for further use, on which side of the pond have you learned proportions, how big is your juice box, and if you'd like to reassign the degree of freedom.
Resovoir Units
Stock Resovoir Volume
Weight Units
Volume +/- gal

Weight +/- g
Instrument Precision
Degree of Freedom


Slow down there partner...
You haven't even run any calculations yet! Go back and fill out a few forms.


Registered users are able to track revisions to your fertilizer AND water profiles! Registration is available via a private alpha testing group.

Fertilizer Revisions

  • N: 148P: 124
    #3 - 10/3/12 23:12
    Revision notes go here....maybe reasoning behind additions/modifications. Nunc ut neque dui, non egestas nulla. Donec ut mi quam, id euismod urna. Maecenas bibendum commodo rhoncus.
    Potassium Phosphate Calcium Nitrate
  • N: 148S: 60
    #2 - 10/1/12 03:51
    Revision notes go here....maybe reasoning behind additions/modifications
    Potassium Phosphate Potassium Nitrate Monoammonium Phosphate Calcium Nitrate
  • N: 148P: 124
    #1 - 9/22/12 15:43
    Phasellus tortor tortor, commodo quis condimentum et, semper eu justo. Vivamus sit amet nisi in lectus tincidunt scelerisque vel et arcu. Revision notes go here....maybe reasoning behind additions/modifications
    Potassium Phosphate Potassium Nitrate Monoammonium Phosphate Calcium Nitrate

Water Source Revisions

  • You haven't saved and imported any water profiles yet!

About Salt Smarts

Learn to grow more sustainably, with better precision, while saving money!

Whether you're a professional large-scale farmer, a back-yard gardener, or a budding enthusiast, Salt Smarts can help you become a better, more productive, and efficient cultivator.

Salt Smarts will help you feed more with less water, while knowing exactly what you're feeding to your plants compared to mixing X with Y to get something close to what your crop might need.

Keep track of your changes to the water source used, fertilizer formulas, and changes to your crops. Salt Smarts will log, track, and chart growth parameters to better leverage data for increased yield and efficency, and savings in time and fertilization costs.

Powered by AlgLib

Powered by AlgLib

Calculations processed with the powerful AlgLib open-source computational library. Linear algorithms reach the best formula every time!
Responsive & Cross-Platform

Responsive & Cross-Platform

Salt Smarts will work perfectly on your desktop, or laptop computer regardless of what operating system or brand you are using be that the latest version of Windows, Mac OS X, or one of the many varieties of GNU/Linux. You'll also be able to use it on your Android or iOS phones and tablets for on-the-go, in the field use with all the features you'd expect from the desktop version in an accessable and easy to use manner that is optimized for mobile and handheld units.
Sharing Built-In

Sharing Built-In

Browse and find new nutrient formulas, fertilizer components, and share yours as well! You may of course set the privacy level to a more restrictive level, from completely private to wide open to the public.

Crash Course

Here's a different take on Salt Smarts and how it works. A simple walk-through and some highlights on the concepts of Raw Salt Fertigation...

  • Most store bought liquid fertilizers are made of the same basic components such as Calcium Nitrate (CaNO3) and Magnesium Sulfate (MgSO4). Most of the cost is from the shipping of the purified water.
  • These same basic components (Calcium Nitrate, etc) can be obtained for pennies on the dollar in their dry form and can be used to create the same and other custom fertilizer solutions.
  • As an example, for every gram of Calcium Nitrate diluted into pure water you will get NH4 at 1.1%, NO3 at 14.4%, and Ca at 19%, which equates to 2.904 PPM of Ammoniacal Nitrogen (NH4), 38.016 PPM of Nitrate Nitrogen (NO3), and 50.16 PPM of Calcium (Ca).
Now that you've got the basics, you're probably wondering where all this math comes from to get these dillution ratios. To learn more about the science of it all, head on over to the Raw Salts for Dummies page to learn more.

If you'd like to not have to pull out the calculator every time you mix your fertilizer solution, then Salt Smarts is just the thing you need. Salt Smarts will calculate your ferilizer requirements with your used water source as a base-line, take your crop requirements, suggest salts to use, and calculate, chart, and track your results.



Manual & Help

Uhhhh....halp? I'll be back to fix this later.

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