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If the salt concentration of the soil water (saturation extract) in milli-mhos/cm is in between 4.5 – 9, then what is the salinity of the soil?

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in Irrigation Engineering by (75.2k points)
If the salt concentration of the soil water (saturation extract) in milli-mhos/cm is in between 4.5 – 9, then what is the salinity of the soil?

(a) Non-saline

(b) Slightly saline

(c) Medium saline

(d) Highly saline

I had been asked this question in an online interview.

I would like to ask this question from Reclamation of Saline and Alkaline Lands in section Water Logged Reclamation and Saline Soils for Agricultural Purposes of Irrigation Engineering

1 Answer

0 votes
by (106k points)
Right choice is (b) Slightly saline

To explain: The salt concentration in the water extracted from a saturated soil defines the salinity of the soil.

S.NO

The salt concentration of soil water

Salinity

1.

0 – 4.5 milli-mhos/cm

Non-saline

2.

4.5 – 9.0 milli-mhos/cm

Slightly saline

3.

9.0 – 18 milli-mhos/cm

Medium saline

4.

>18 milli-mhos/cm

Highly saline

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