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How can fertilizer tanks be prepared?

Preparing fertilizer tanks requires close attention. Mistakes in this preparation can cause many problems. Calculating an optimal nutrition feeding scheme is an important aspect in horticulture. Our specialist explains the preparation of fertilizer tanks in this article.
fertilizers baskets
Han van der Kooij
Product specialist Fertilizers | June 26, 2023 | 2 min. reading time

The difference between A- and B- fertilizer tanks

Two fertilizer tanks are developed in order to prevent undesired reactions of certain elements. After the A- and B-tanks have been prepared, the solutions come together in a special tank, the mixing tank. The mixing tank contains a concentration that is eventually given to the crop. Due to this mixing tank, the chances on the elements precipitating are reduced.
A-tankB-tank
Calcium Nitrate 
Magnesium Nitrate
Ammonium Nitrate
Calcium Chloride
Iron chelate
Nitric Acid
Sulphuric Acid
Phosphoric Acid
Potassium Phosphorous Hydroxide
Potassium Hydroxide
Magnesium Sulphate
Potassium Phosphate
Trace elements (sulphates and chelates, excluding iron chelate)

Note: Always make sure to make use of the personal protection prescribed, when preparing a fertilizer tank (special gloves, face protection and safety glasses). 

Preparing the A- fertilizer tank

  1. Fill the fertilizer tank up to approximately 20% with water 
  2. Dose the following fertilizing elements
    Solid: Potassium Nitrate
  3. Mix carefully
  4. Add more water to the tank, filling it to approximately 50%
  5. Measure the pH level of the solution. It should be below 5.5
    > 5.5: Correct with Nitric Acid
    < 5.5: Correct with Fertigro KL-50
  6. Dose the other fertilizer elements
    Solid: Calcium Nitrate, Ammonium Nitrate, Magnesium Nitrate
  7. While mixing, the tank can be filled with water up to 100% 
  8. Measure the pH once again
  9. Add the iron chelate
  10. Mix well once again
 pH minimumpH maximum
Fe-DTPA3,05,5
Fe-HEEDTA3,05,5
Fe-EDDHA4,05,5

Preparing the B- fertilizer tank

  1. Fill the fertilizer tank up with water to approximately 20%
  2. Dose the following fertilizing elements
    Solid: Potassium Nitrate, MKP, MAP
  3. Mix carefully
  4. Add more water to the tank, filling it up to approximately 60%
  5. Measure the pH level of the solution. It should be below 5.5 and measured from top to bottom with a pH probe.
  6. Dose the other fertilizers
    Solid: Magnesium Sulphate
  7. While mixing, the tank can be filled with water up to 100%
  8. Dose the trace elements
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How can fertilizer tanks be prepared?

Preparing fertilizer tanks requires close attention. Mistakes in this preparation can cause many problems. Calculating an optimal nutrition feeding scheme is an important aspect in horticulture. Our specialist explains the preparation of fertilizer tanks in this article.
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Han van der Kooij product specialist fertilizers
Han van der Kooij
Product specialist Fertilizers | June 26, 2023 | 2 min. reading time
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fertilizers baskets

The difference between A- and B- fertilizer tanks

Two fertilizer tanks are developed in order to prevent undesired reactions of certain elements. After the A- and B-tanks have been prepared, the solutions come together in a special tank, the mixing tank. The mixing tank contains a concentration that is eventually given to the crop. Due to this mixing tank, the chances on the elements precipitating are reduced.
A-tankB-tank
Calcium Nitrate 
Magnesium Nitrate
Ammonium Nitrate
Calcium Chloride
Iron chelate
Nitric Acid
Sulphuric Acid
Phosphoric Acid
Potassium Phosphorous Hydroxide
Potassium Hydroxide
Magnesium Sulphate
Potassium Phosphate
Trace elements (sulphates and chelates, excluding iron chelate)

Note: Always make sure to make use of the personal protection prescribed, when preparing a fertilizer tank (special gloves, face protection and safety glasses). 

Preparing the A- fertilizer tank

  1. Fill the fertilizer tank up to approximately 20% with water 
  2. Dose the following fertilizing elements
    Solid: Potassium Nitrate
  3. Mix carefully
  4. Add more water to the tank, filling it to approximately 50%
  5. Measure the pH level of the solution. It should be below 5.5
    > 5.5: Correct with Nitric Acid
    < 5.5: Correct with Fertigro KL-50
  6. Dose the other fertilizer elements
    Solid: Calcium Nitrate, Ammonium Nitrate, Magnesium Nitrate
  7. While mixing, the tank can be filled with water up to 100% 
  8. Measure the pH once again
  9. Add the iron chelate
  10. Mix well once again
 pH minimumpH maximum
Fe-DTPA3,05,5
Fe-HEEDTA3,05,5
Fe-EDDHA4,05,5

Preparing the B- fertilizer tank

  1. Fill the fertilizer tank up with water to approximately 20%
  2. Dose the following fertilizing elements
    Solid: Potassium Nitrate, MKP, MAP
  3. Mix carefully
  4. Add more water to the tank, filling it up to approximately 60%
  5. Measure the pH level of the solution. It should be below 5.5 and measured from top to bottom with a pH probe.
  6. Dose the other fertilizers
    Solid: Magnesium Sulphate
  7. While mixing, the tank can be filled with water up to 100%
  8. Dose the trace elements

Contact form
Can't find your answer? Fill out the contact form and our specialist Han van der Kooij will get back to you. On weekdays, even within 24 hours.
Han van der Kooij product specialist fertilizers
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