Salt In Soil – Reversing Soil Salinity

by johnah on November 25, 2020

Salt In Soil – Reversing Soil Salinity: How Does Salt Affect Soil?

Soils are made up of organic matter (mostly carbon) and inorganic material (mostly minerals). Organic matter contains water molecules while inorganic materials contain salts. When salt enters soil it changes the chemical composition of both organic and inorganic matter. This change causes the mineral content to decrease, which results in less nutrients being available for plant growth.

The effect of salt on soil is not just limited to its effects on the amount of nutrients available for plant growth. Salt also affects the structure and properties of soils. These changes cause the soil to become more permeable, allowing water to move through it easier.

This allows evaporation and rainfall to occur at a faster rate than normal, resulting in increased runoff into streams or rivers. However, when water flows through soil too quickly it can cause erosion, causing land loss due to flooding.

How To Remove Salt From Soil?

There are several ways to remove salt from soil. One way is to use chemicals such as chlorine, iodine, sodium hypochlorite, etc., which will kill off all the beneficial microorganisms in the soil. Another method is using biological methods such as composting or aerating with air. Other physical and mechanical methods involve using different equipment such as a plow or spade to break up the soil.

How To Neutralize Salt In Soil?

There are many ways to neutralize salt in soil, such as adding sand, saw dust, or wood chips. Another way is to add a large amount of compost or grass clippings. The most common way to improve soil is to add fresh topsoil to the area. Another common way is by using gypsum (calcium sulfate). It can also be beneficial to add mulch such as grass clippings, saw dust, or wood chips. Another way to improve soil is through biological methods such as using anaerobic bacteria and fungi to break down organic matter. Other ways are using physical and mechanical methods such as creating raised beds and adding topsoil.

How Long Does Salt Stay In Soil?

Sources & references used in this article:

Economics of salt‐induced land degradation and restoration by M Qadir, E Quillérou, V Nangia, G Murtaza… – Natural resources …, 2014 – Wiley Online Library

Managing soil salinity with permanent bed planting in irrigated production systems in Central Asia by M Devkota, C Martius, RK Gupta, KP Devkota… – Agriculture, Ecosystems …, 2015 – Elsevier

Spatial and seasonal variations of soil salinity following vegetation restoration in coastal saline land in eastern China by B He, Y Cai, W Ran, H Jiang – Catena, 2014 – Elsevier



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