allgrownup
04-10-2008, 09:04 AM
If you use more than one fertilizer product in your nutrient solution, repeat the instructions for each product while writing down the ppm for each element on a piece of paper. When done, add the ppm's for each element to find the composite profile for all products. Alternatively, you can download (http://www.angelfire.com/cantina/fourtwenty/articles/download.htm) the PremixPPM Excel workbook which allows up to seven different nutrient products to be used in the same profile, it also has many other features not available here. Instructions
Java Script must be enabled to use the calculator.
Liquid fertilizer users only - If your fertilizer's labeling includes Net Weight and Liquid Volume, enter that information at the top of the form.
In the Mixing Units box enter the quantity of fertilizer to be mixed with 1 US Gallon (3785ml) of water.
In the Guaranteed Analysis column, enter the percentage figures from the guaranteed analysis on your fertilizer label. If Nitrogen isn't broken down by type on your label, enter the total N in any of the three N boxes in the Guaranteed Analysis column.
Click the Calculate button. Examples
Click any of the example buttons to fill the form with data for that product, results will be calculated automatically. The mixing units in the examples are those for the widely used 8M-16B-0G formula, you can edit them or any other inputs then click the Calculate button to recalculate the profile.
[B]Nutrient Profile Calculator
Calculator found here: http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm
This ppm or that ppm
If you've tried to reconcile the elemental parts per million (ppm) shown in the nutrient profiles with metered TDS ppm figures, you're probably pulling your hair out by now. In order to avoid confusing the two, it's important to distinguish between their contexts when the term ppm is being used. For more details about TDS/EC metering and how it relates to GH Flora nutrient profiles, see this Cal-O-Rama article (http://www.angelfire.com/cantina/fourtwenty/articles/calorama.htm) (Cal is for calibration).
taken from the developer of the "Lucas Formula". May be a re post but heck its so useful its worth it.
keep it green.
Java Script must be enabled to use the calculator.
Liquid fertilizer users only - If your fertilizer's labeling includes Net Weight and Liquid Volume, enter that information at the top of the form.
In the Mixing Units box enter the quantity of fertilizer to be mixed with 1 US Gallon (3785ml) of water.
In the Guaranteed Analysis column, enter the percentage figures from the guaranteed analysis on your fertilizer label. If Nitrogen isn't broken down by type on your label, enter the total N in any of the three N boxes in the Guaranteed Analysis column.
Click the Calculate button. Examples
Click any of the example buttons to fill the form with data for that product, results will be calculated automatically. The mixing units in the examples are those for the widely used 8M-16B-0G formula, you can edit them or any other inputs then click the Calculate button to recalculate the profile.
[B]Nutrient Profile Calculator
Calculator found here: http://www.angelfire.com/cantina/fourtwenty/articles/profiles.htm
This ppm or that ppm
If you've tried to reconcile the elemental parts per million (ppm) shown in the nutrient profiles with metered TDS ppm figures, you're probably pulling your hair out by now. In order to avoid confusing the two, it's important to distinguish between their contexts when the term ppm is being used. For more details about TDS/EC metering and how it relates to GH Flora nutrient profiles, see this Cal-O-Rama article (http://www.angelfire.com/cantina/fourtwenty/articles/calorama.htm) (Cal is for calibration).
taken from the developer of the "Lucas Formula". May be a re post but heck its so useful its worth it.
keep it green.
