The nitrogen is present in the atmosphere in huge amount but higher plants fail to utilize it. Why?

Why is that in certain plants deficiency symptoms appear first in younger parts of the plants while in others, they do so in mature organs?

Explain the insectivorous mode of nutrition in angiosperms?

List the criteria for essential minerals.

Give the deficiency symptoms of copper in plants.

What is bladder wort?

Name at least five different deficiency symptoms in plants. Correlate them with the mineral concerned.

Explain the significance of potassium as a Macronutrient.

Explain Nitrate Assimilation.

Hydroponics is a successful technique of growing plants but most of the crops are still grown on land? Why?