Quiz : ¿Cuánto sabes sobre el abonado de bonsáis?

Bonsai Fertilizer Quiz

🧪 How much do you know about bonsai fertilizer?

Are you fertilizing your bonsais correctly? Find out with this 25-question technical and educational quiz that will test your knowledge of chemical and organic fertilizers, the role of NPK nutrients, essential microelements, substrates with cation exchange capacity, substrate blockages, and much more.

Whether you're just starting out or already have experience, this test will help you spot common mistakes, reinforce key concepts, and improve the health and vigor of your trees.

✔️ Ideal for demanding amateurs and advanced bonsaists
✔️ Learn while you answer
✔️ Improve your fertilization technique and avoid serious mistakes

1 / 20

What fertilizer is ideal for preparing bonsai for winter in autumn?

Rich in nitrogen

With balanced NPK

Low in nitrogen, high in phosphorus and potassium

Only with magnesium and calcium

2 / 20

What role do microorganisms play in the fertilized substrate?

They maintain the acidic pH

They transform organic fertilizers into available nutrients

They eliminate unnecessary nutrients

They grow thicker roots

3 / 20

Which micronutrient is most closely related to chlorophyll synthesis?

Iron

Calcium

Boron

Potassium

4 / 20

What fertilization is recommended for fattening trees?

Only micronutrients

Low nitrogen, high phosphorus

High nitrogen accompanied by the rest of the essential macros and micros

Liquid fertilizers every week

5 / 20

What does the acronym NPK mean on bonsai fertilizers?

Nitrogen, Phosphorus, Potassium

Nitrogen, Potassium, Magnesium

Nitrogen, Potassium, Calcium

Nitrogen, Phosphorus, Zinc

6 / 20

Which micronutrient is essential to prevent interveinal chlorosis?

Phosphorus

Potassium

Iron

Calcium

7 / 20

What indicates a potassium deficiency?

Intense sprouting

Necrotic edges on leaves

Thick and healthy roots

Very large leaves

8 / 20

What is the main function of potassium in fertilizer?

Activates microorganisms

Stimulates sprouting

Suppresses growth

Improves disease resistance

9 / 20

Why is substrate pH important when fertilizing?

Affects leaf development

Controls humidity

It influences the speed of irrigation

Regulates the availability of nutrients

10 / 20

What is the main effect of nitrogen on bonsai?

Stimulates the growth of leaves and shoots

Increases resistance to cold

Promotes flowering

Improves lignification

11 / 20

Which of these is a popular organic solid fertilizer for bonsai?

Hanagokoro

Ammonium nitrate

Monoammonium phosphate

Urea

12 / 20

What role does magnesium play in bonsai nutrition?

It is part of the chlorophyll molecule

It intervenes in lignification

Increases flowering

Stimulates potassium absorption

13 / 20

What is a substrate lock?

When the substrate hardens

When the roots are compressed

When nutrients are not absorbed properly

When water accumulates

14 / 20

What does interveinal chlorosis with green veins indicate in young leaves?

Lack of irrigation

Iron deficiency

Excess nitrogen

Potassium deficiency

15 / 20

Which substrate has good cation exchange capacity?

Volcanic gravel

Akadama

Perlite

River sand

16 / 20

Which nutrient primarily promotes root and flower development?

Nitrogen

Magnesium

Phosphorus

Calcium

17 / 20

What advantage does liquid fertilizer have over solid fertilizer?

It is applied once per season

Lasts longer

Its action is faster and more dosable

No subsequent watering required

18 / 20

What does “cation exchange capacity” (CEC) mean?

Ability to eliminate salts

Ability to release oxygen

Ability to retain and release positively charged nutrients

Water retention capacity

19 / 20

What problem can an excess of nitrogen cause?

Early lignification

Slow sprouting

Small leaves

Weak growth and increased susceptibility to pests

20 / 20

What is organic fertilizer?

A fertilizer with synthetic NPK

A fertilizer with pure minerals

A fertilizer derived from animal or plant remains

A mixture of natural chemicals

Your score is

The average score is 85%

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Quiz: How much do you know about bonsai fertilizer?

🧪 How much do you know about bonsai fertilizer?

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