Question

Q4. In hydroponics
fertilizers are used.​

Answer 1

Answer:

Hydroponic systems feed plants with liquid fertilizers in growing media that do not contain soil. Most commercial fertilizers only contain major plant nutrients --nitrogen, phosphorous and potassium. Micronutrients and minerals, such as zinc and iron, are not added because they are abundant in most soil types.

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Answer 2

Answer:

Fertilizer for hydroponics

In hydroponics - opposite to soil cultivation - the plant gets everything it needs for growing directly to the roots by the nutrients dissolved in the water. Unlike conventional methods, nutrients do not have to be removed from the soil by watering. This also saves the plant a lot of energy, as it has easier access to the nutrients.

To ensure that the nutrients in soil-free cultivation can be absorbed by the plants directly from the water, special hydroponic fertilizers are available for hydroponic cultivation.

Explanation:

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