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

Which micronutrient is most closely related to chlorophyll synthesis?

Iron

Boron

Calcium

Potassium

2 / 20

Which nutrient primarily promotes root and flower development?

Calcium

Magnesium

Nitrogen

Phosphorus

3 / 20

What problem can an excess of nitrogen cause?

Weak growth and increased susceptibility to pests

Early lignification

Small leaves

Slow sprouting

4 / 20

Which micronutrient is essential to prevent interveinal chlorosis?

Iron

Phosphorus

Potassium

Calcium

5 / 20

What is a substrate lock?

When the roots are compressed

When water accumulates

When the substrate hardens

When nutrients are not absorbed properly

6 / 20

What indicates a potassium deficiency?

Necrotic edges on leaves

Very large leaves

Intense sprouting

Thick and healthy roots

7 / 20

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

Monoammonium phosphate

Hanagokoro

Urea

Ammonium nitrate

8 / 20

What is the main effect of nitrogen on bonsai?

Increases resistance to cold

Stimulates the growth of leaves and shoots

Promotes flowering

Improves lignification

9 / 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

10 / 20

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

Only with magnesium and calcium

With balanced NPK

Low in nitrogen, high in phosphorus and potassium

Rich in nitrogen

11 / 20

What does the acronym NPK mean on bonsai fertilizers?

Nitrogen, Potassium, Magnesium

Nitrogen, Phosphorus, Zinc

Nitrogen, Phosphorus, Potassium

Nitrogen, Potassium, Calcium

12 / 20

What advantage does liquid fertilizer have over solid fertilizer?

Lasts longer

No subsequent watering required

Its action is faster and more dosable

It is applied once per season

13 / 20

Why is substrate pH important when fertilizing?

Regulates the availability of nutrients

It influences the speed of irrigation

Controls humidity

Affects leaf development

14 / 20

What role do microorganisms play in the fertilized substrate?

They eliminate unnecessary nutrients

They maintain the acidic pH

They transform organic fertilizers into available nutrients

They grow thicker roots

15 / 20

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

Iron deficiency

Potassium deficiency

Lack of irrigation

Excess nitrogen

16 / 20

What fertilization is recommended for fattening trees?

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

Low nitrogen, high phosphorus

Liquid fertilizers every week

Only micronutrients

17 / 20

Which substrate has good cation exchange capacity?

Akadama

Perlite

River sand

Volcanic gravel

18 / 20

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

Ability to release oxygen

Ability to eliminate salts

Ability to retain and release positively charged nutrients

Water retention capacity

19 / 20

What is the main function of potassium in fertilizer?

Improves disease resistance

Activates microorganisms

Stimulates sprouting

Suppresses growth

20 / 20

What is organic fertilizer?

A fertilizer derived from animal or plant remains

A mixture of natural chemicals

A fertilizer with pure minerals

A fertilizer with synthetic NPK

Your score is

The average score is 86%

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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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Quiz: How much do you know about bonsai fertilizer?

🧪 How much do you know about bonsai fertilizer?

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