Question

Soil salinity is measured by
a. Porometer
b. Calorimeter
c. Conductivity meter
d. Potometer

Answer 1

The percentage of salt content in the soil is called soil salinity. The process in which the salt content is increased is known as salinization. As we know already, the salt content is present in the soils and water naturally. Salination can be produced by natural procedures such as inert weathering or by the regular withdrawal of an ocean.

Complete answer:
The problem of salt salinity is normally likely to lead due to the reason that logging or poor drainage or prolonged liberal irrigation. The soil salinity is restrained with the help of a conductivity meter.

If the water is saline, then the meter shows higher conductivity. It is due to the presence of excess salts especially those elements just like sodium, potassium, and magnesium.

The conductivity meter is a device which deals with the range of electrical conductivity in a solution due to the occurrence of salts or impurities.

A calorimeter is an article used while working on calorimetry. It is the process of measuring the amount of heat used or taken in chemical reactions or physical changes as well as the heat capacity. A porometer deals with the actions of the stomatal conductance or confrontation.

A potometer which is also known as a Tran spirometer. It is a device which is used for gauging the rate of water uptake by a leafy shoot which is almost equal to the water lost in the process of transpiration.

Hence, the correct answer is option (C).

Additional information:
In general, the soil salinity is caused by:
- If the Soil is formed from those rocks which have sodium, calcium, magnesium in excess form.
- Salt Lake or salt mine which is near to seashore.
- Irrigation of plants with water which are rich in basic salts.

Note: The electrical conductivity in a solution is measured by an electrical conductivity meter (EC meter). In domains of research and engineering, it has many applications. It has common usage in hydroponics, aquaculture, aquaponics. It is used in freshwater systems to monitor the amount of nutrients, salts or impurities present in the water.