An Instrument which is used to measure salinity of soil.

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

Which of the following is not a macro element?

The transport of mineral ions in the root through cell wall is called

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

Which one of the following mineral element plays an important role in biological nitrogen fixation?

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

Hydroponics was commercially developed by

The mineral element which maintains ribosome structure

Carrier protein is required for