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How can fertilizer tanks be prepared?
Written by Han van der Kooij | Last update: 22-09-2020
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.
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.
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
- Fill the fertilizer tank up to approximately 20% with water
- Dose the following fertilizing elements
Liquid: Fertigro KL-50, Fertigro KBL
Fixed: Potassium Nitrate - Mix carefully
- Add more water to the tank, filling it to approximately 50%
- 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 - Dose the other fertilizer elements
Liquid: Fertigro CN, AN, MN
Fixed: Calcium Nitrate, Ammonium Nitrate, Magnesium Nitrate - While mixing, the tank can be filled with water up to 100%
- Measure the pH once again
- Add the iron chelate
- Mix well once againxx
| |
pH minimum |
pH maximum |
| Fe-DTPA |
3,0 |
5,5 |
| Fe-HEEDTA |
3,0 |
5,5 |
| Fe-EDDHA |
4,0 |
5,5 |
Preparing the B- fertilizer tank
- Fill the fertilizer tank up with water to approximately 20%
- Dose the following fertilizing elements
Liquid: Fertigro SZ-38, KZZ, FZ-59
Fixed: Potassium Nitrate, MKP, MAP - Mix carefully
- Add more water to the tank, filling it up to approximately 60%
- Measure the pH level of the solution. It should be below 5.5 and measured from top to bottom with a pH probe.
- Dose the other fertilizers
Liquid: Fertigro MSN
Fixed: Magnesium Sulphate - While mixing, the tank can be filled with water up to 100%
- Dose the trace elements
More information about preparing fertilizer tanks
Do you have any questions about crop care, or do you want personal advice? Contact our product specialist Han van der Kooij by filling in the form below. We will then contact you as soon as possible. On working days within 24 hours.
 About Han van der Kooij
Han van der
Kooij, fertiliser product specialist at Royal Brinkman, understands the
customer like no one else. After being a grower himself, for 26 years, he knows
the ropes and is aware of what is involved in being a grower. Converting his
own knowledge and experience into recommendations that are useful to growers,
is what he likes best about his job. "Finding that this leads to good results, makes
me quite satisfied."
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