Super simple and easy-to-use fertilization design tool for hydroponic cultivation: SimpleFert

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How to use SimpleFert

Of the left half of the sheet, only cells with a gray background should be entered. That is, only the following five items.

1.Volume

Input differs depending on whether you are preparing base solution for nutrient solution updates and so on or if you are preparing supplemental solution.

• Base solution (nutrient solution updates etc.): Enter the total overall water volume for the nutrient solution. Enter the water volume for all of the nutrient solution tanks and nutrient solution beds.
• When creating concentrated solution in the supplemental solution tank: This is the water volume for A solution + B solution. For example, if you are making 200 L of A solution and 200 L of B solution, enter “400” L.

2.EC setpoint

This is the EC setting value when cultivating.

3.Solution recipe

You can check whether there are more or less ingredients compared to commonly known formulations. If the ingredient is 10% or more higher than the prescription, it will be displayed as “High”, and if it is lower, it will be displayed as “Low”.

If you do not need a comparison, select “None”.

4.Raw water

This is the component of the water used. It is better to analyze the ingredients and research them as accurately as possible.

Depending on the water used, there may be cases where there is too much of a certain component, which may affect the balance of the nutrient solution.

Please note that the calculations for the values ​​you enter will differ depending on whether you are displaying elements, ions, or oxides, so you will need to convert them to the format shown in the table.

You can convert units using the “unit conversion” sheet.

5.Amount(kg)

Please enter the amount of fertilizer you actually use. As you enter, the calculation results will be displayed on the right side. Adjust the amount of fertilizer used while looking at the reflected calculation results.

How to read the calculation results

Display of fertilizer component amount

The upper section shows the element amounts, while the lower section shows their ratios. The units for element amounts differ between macronutrients and micronutrients (me/L and mg/L).

When you input the fertilizer volume, the nutrient solution element amounts are calculated based on the “EC setpoint.” However, it is important to note that these values are not precise but rather estimates. Nevertheless, they are accurate enough for practical purposes.

You can also compare the calculated values with the selected “Solution Recipe.” A higher “Optimus” value indicates a closer match to the “Solution Recipe.”

Magnification

“Magnification” refers to how many times the nutrient solution can be created with the used fertilizer. For example, the lower the “EC setpoint”, the more nutrient solution can be created, so the “Magnification” is higher.

When creating a base solution for nutrient solution renewal, etc., the “Magnification” approaches 1. Rather, by adjusting the usage of fertilizers to approach 1, this value is checked to avoid problems when creating nutrient solutions, such as the EC being too high or too low.

Fertilizer Types, “Solution recipe” Types

The fertilizer types can be extended, though most fertilizer setups can be done using just the basic fertilizers which are already set.

If you need to add more, you can edit this yourself. (There are functions involved so if this looks too complicated then it’s best to avoid)

The fertilizer type supports both single nutrient fertilizers and compound fertilizers.

If there are any specific fertilizers that you would like to be added, then please let me know in the comments section of this page.

“Solution recipes” can also be added in the same way as fertilizers.

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