Zinc is used up by plants in the form of

The specific symptoms due to the deficiency of elements are called

'Exanthema' in citrus tree is as a result of the deficiency of

Little leaf disease is due to the deficiency of

An Instrument which is used to measure salinity of soil.

The vacuole membrane is called

Plastid disintegration & increase in rate of respiration are due to the deficiency of

The process by which a plant receives and utilizes the mineral nutrients for its normal growth and development is called

The mineral element which maintains ribosome structure

The techniques for growing plants by placing their roots directly in nutrient solution without soil is called