Instructions: The water soluble fertilizer calculator (also a fertilizer ppm calculator or a hydroponic nutrient formula calculator) generates a recipe for a water-soluble fertilizer solution.
Water Soluble Fertilizer Calculator is useful to generate the complete recipe for a water-soluble fertilizer. To obtain quick results, you need to enter details in the input fields like fertilizer presents, fertilizer labels, and other requirements.
Water-soluble fertilizers are fertilizers that are 100% soluble in water. These are applied through foliar spray and fertigation methods in which nutrients are readily absorbed and used in the plant system without wastage through evaporation, leaching and runoff.
There are two important components of the water-soluble fertilizer's label N-P-K numbers and "guaranteed analysis".
The N-P-K numbers are 3 large numbers you will see on the package, as of 20-8-20. These numbers (nitrogen, phosphorus, and potassium) are the primary nutrients and per cent of the fertilizer's weight. The nutrients available are nitrogen (N), potash (K₂O), and phosphate (P₂O5). The percentage is 20% of the bag's weight is composed of nitrogen, 8% is phosphate, and 20% is potash.
Making hydroponic nutrients is easy with the water-soluble fertilizer calculator. You need to follow the below-listed instructions.
Question: If you have a 100 L water tank, calculate how much fertilizer to add to achieve 200 ppm nitrogen?
For this question, we will use a soluble fertilizer with 20-8-20 label.
Rewrite ppm as mg/L
Nitrogen concentration (mg/L) = 200 ppm = 200 mg/L nitrogen
Find the final fertilizer concentration
Fertilizer concentration (mg/L) = nitrogen concentration (mg/L)/percent weight
= 200 mg/L N/0.2
= 1000 mg/L = 1 g/L
Find the fertilizer weight to be added
Fertilizer = Fertilizer concentration * water volume
= 1 g/L of fertilizer * 100 L
= 100 g
So, we should add 100 g fertilizer to 100 L of water to achieve 200 ppm N.
Calculate other elements' concentrations
P2O5 concentration = fertilizer concentration * percent weight of P2O5
K2O concentration = fertilizer concentration * per cent weight of K2O
The atomic weight of phosphorus = weight of P2O5/2.29133
The atomic weight of Potassium = weight of K2)/1.204
Finally, the atomic weight of N is 14.007, P is 30.9, K is 39.09 and K is 15.9.
The simple and five useful tips to mix water-soluble fertilizer are along the lines:
1. How to mix water-soluble fertilizer with water?
When mixing water-soluble fertilizer with water, add less than 1/2 of the total volume required into the container, then add the fertilizer. Mix and add water to increase the total stock volume to the required level.
2. Is water-soluble fertilizer the same as liquid fertilizer?
Both water-soluble fertilizers and liquid fertilizers are available in the form of crystals. Potassium nitrate is an example of water-soluble fertilizer. Fish emulsion and compost tea are examples of liquid fertilizers.
3. What are the steps to convert concentrations from mmol to ppm?
The formula to convert concentrations from mml to ppm is ppm (mg/L) = molar concentration (mmol/L) * molar mass (g/mol).
4. What are different water sources you can use in water-soluble fertilizers?
The different water sources are rainwater, tap water, groundwater, and deionized water. If you are growing setup recirculates water irrigation, you must aware of the salt levels of your water sources.