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

Potassium

Boron

Calcium

2 / 20

What is the main effect of nitrogen on bonsai?

Increases resistance to cold

Promotes flowering

Stimulates the growth of leaves and shoots

Improves lignification

3 / 20

What indicates a potassium deficiency?

Very large leaves

Necrotic edges on leaves

Intense sprouting

Thick and healthy roots

4 / 20

What role does magnesium play in bonsai nutrition?

It is part of the chlorophyll molecule

Increases flowering

It intervenes in lignification

Stimulates potassium absorption

5 / 20

Which nutrient primarily promotes root and flower development?

Magnesium

Phosphorus

Nitrogen

Calcium

6 / 20

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

Iron deficiency

Lack of irrigation

Potassium deficiency

Excess nitrogen

7 / 20

What problem can an excess of nitrogen cause?

Weak growth and increased susceptibility to pests

Early lignification

Slow sprouting

Small leaves

8 / 20

Why is substrate pH important when fertilizing?

Controls humidity

Regulates the availability of nutrients

It influences the speed of irrigation

Affects leaf development

9 / 20

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

Hanagokoro

Monoammonium phosphate

Urea

Ammonium nitrate

10 / 20

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

Low in nitrogen, high in phosphorus and potassium

Only with magnesium and calcium

Rich in nitrogen

With balanced NPK

11 / 20

What is a substrate lock?

When the roots are compressed

When nutrients are not absorbed properly

When water accumulates

When the substrate hardens

12 / 20

What is organic fertilizer?

A fertilizer with synthetic NPK

A mixture of natural chemicals

A fertilizer derived from animal or plant remains

A fertilizer with pure minerals

13 / 20

What is the main function of potassium in fertilizer?

Improves disease resistance

Activates microorganisms

Suppresses growth

Stimulates sprouting

14 / 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

15 / 20

What advantage does liquid fertilizer have over solid fertilizer?

It is applied once per season

Its action is faster and more dosable

No subsequent watering required

Lasts longer

16 / 20

What does the acronym NPK mean on bonsai fertilizers?

Nitrogen, Potassium, Calcium

Nitrogen, Phosphorus, Zinc

Nitrogen, Potassium, Magnesium

Nitrogen, Phosphorus, Potassium

17 / 20

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

Water retention capacity

Ability to release oxygen

Ability to eliminate salts

Ability to retain and release positively charged nutrients

18 / 20

Which substrate has good cation exchange capacity?

River sand

Akadama

Volcanic gravel

Perlite

19 / 20

What role do microorganisms play in the fertilized substrate?

They maintain the acidic pH

They transform organic fertilizers into available nutrients

They grow thicker roots

They eliminate unnecessary nutrients

20 / 20

Which micronutrient is essential to prevent interveinal chlorosis?

Calcium

Iron

Potassium

Phosphorus

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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