How Do You Treat Soil Salinity?

How do you fix salinity?

Managing salinityplanting, regenerating and maintaining native vegetation and good ground cover in recharge, transmission and discharge zones, where possible.using more groundwater in recharge areas by pumping water from bores and redirecting it to other storages.More items…•Jan 14, 2014.

Is soil salinity good or bad?

Although increasing soil solution salinity has a positive effect on soil aggregation and stabilization, at high levels salinity can have negative and potentially lethal effects on plants. As a result, salinity cannot be increased to maintain soil structure without considering potential impacts on plant health.

Why is high salinity bad for plants?

Soil salinity is an enormous problem for agriculture under irrigation. … All soils contain some water-soluble salts. Plants absorb essential nutrients in the form of soluble salts, but excessive accumulation strongly suppresses the plant growth.

How do you test soil salinity?

Water and soil salinity are measured by passing an electric current between the two electrodes of a salinity meter in a sample of soil or water. The electrical conductivity or EC of a soil or water sample is influenced by the concentration and composition of dissolved salts.

How can you test soil salinity at home?

An electrical conductivity meter, or EC meter, is the only common device that can be used to measure the salinity of soil. It can also be used to measure the salinity of water, but a high-quality EC meter may be significantly more expensive than a refractometer or hydrometer.

What measures can be applied to counteract salinity?

Most recent answer. As per my ten years experience soil salinity can be reduced by application of organic manures like FYM, Compost, Biocompost, Vermicompost and the microbes like biofertilizers e.g. Arbascular Mycorrhiza and PGPR (Plant Growth Promoting Rhizobacteria).

What increases salinity in water?

Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these “salinity raising” factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.

What causes salinity?

Primary salinity is caused by natural processes such the accumulation of salt from rainfall over many thousands of years or from the weathering of rocks. … Here, the salts tend to build up in the soil and groundwater and can accumulate over long time periods to reach high levels.

Which fertilizer cures the salinity of soil?

The generally accepted fertilizer is farmyard manure (FYM) for agriculture in most saline areas. The joint application of FYM and chemical fertilizer is recommended when the cost/benefit is considered. The timing of topdressing fertilizer is important to reduce the effect of salt stress on crop growth.

What is soil salinity and what causes it?

Salinization is the process by which water-soluble salts accumulate in the soil. Salinization is a resource concern because excess salts hinder the growth of crops by limiting their ability to take up water. Salinization may occur naturally or because of conditions resulting from management practices.

What is the measure of salinity?

Salinity is the measure of the amount of dissolved salts in water. It is usually expressed in parts per thousand (ppt) or percentage (%). Freshwater from rivers has a salinity value of 0.5ppt or less.

How do you get rid of salinity in soil?

Gypsum (calcium sulfate) or lime can be used to help leach salt from the soil. The calcium in these products replaces the sodium salt from the soil exchange sites and helps bring the salt into solution. Large concentrations of salt may be leached from a soil in this way.

What causes high salinity in soil?

Soils naturally high in soluble salts are usually found in arid or semi-arid regions, where salts often accumulate because there is not enough rainfall to dissolve them and leach them out of the root zone. Salt spray near coastlines can also cause salts to build up in the soil.

Why is soil salinity bad?

If the level of salts in the soil water is too high, water may flow from the plant roots back into the soil. … Salinity affects production in crops, pastures and trees by interfering with nitrogen uptake, reducing growth and stopping plant reproduction.

Where is soil salinity a problem?

Salinity problems occur under all climatic conditions and can result from both natural and human-induced actions. Generally speaking, saline soils occur in arid and semi-arid regions where rainfall is insufficient to meet the water requirements of the crops, and leach mineral salts out of the root-zone.

How can dryland salinity be reduced?

Strategies for managing dryland salinity fall into three main areas: • Maintain and manage existing vegetation • Establish deep rooted perennial grasses and trees up slope of the salt prone areas • Establish salt tolerant vegetation within the salt affected area.

Add a comment