Counting by densityadriana2023-04-06T12:15:56+02:00
Counting by density
If the density is greater than one, the price will be higher per liter than per kg. Convert the price per kg to the price per liter or vice versa:
For example, if a product costs $18.00/l, divide by the density of 1.41 kg/l and the price is $12.77/kg.
Calculation: Price per liter / density = price per kilogram
Kilo price x density = liter price
Recalculate the nutrient content from oxides to pure substance!adriana2023-04-06T12:16:16+02:00
Recalculate the nutrient content from oxides to pure substance!
In Europe, fertilizers in oxide form are declared for several substances.
Use the following formulas to calculate the pure substance -> Calculation:
P2O5 to P => P2O5/2.29
K2O to K => K20/1.2
MgO to Mg => MgO/1.66
SO3 to S => SO3/2.5
CaO to Ca => CaO/1.4
How to calculate the amount of acid that needs to be added to nutrient solutions?Sofi Rosenberg2023-04-06T12:15:32+02:00
How to calculate the amount of acid that needs to be added to nutrient solutions?
Neutralize 100 mg/l of alkalinity (HCO3-) per 1000 liters of irrigation water:
| Acid product | per 1000 l of irrigation water | per 100 l stock solution with 1:100 dilution |
| Phosphoric acid 85% | 0,10 liter | 1.0 liter |
| Phosphoric acid 75% | 0.125 liters | 1.25 liters |
| Magnofoss | 0,17 liter | 1.7 liters |
| Nitric acid 62% | 0,12 liter | 1.2 liters |
| Nitric acid 53% | 0.145 liters | 1.45 liters |
Use Effect+ to neutralize alkalinity (HCO3-) in spray liquid:
To reduce alkalinity by 100 mg/l, you need to add 12 ml of Effect+ per 100 liters of spray liquid.
To maintain an alkalinity of 50 mg/l in the raw water, add the following amount of Effect+ (ml/100 l spray liquid):
| Alkalinity | Quantity of Effect+ (ml/100 l) |
| 50 | 0 |
| 100 | 6 |
| 150 | 12 |
| 200 | 18 |
| 250 | 24 |
| 300 | 31 |
| 350 | 37 |
