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Biosalinity
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Biosalinity is the study and practice of using saline () water for irrigating .

Many arid and semi-arid areas actually do have sources of water, but the available water is usually (0.5–5g/L salt) or (30–50g/L salt). The water may be present in underground or as along coastal deserts. With traditional farming practices, saline water results in soil , rendering it unfit for raising most crop plants. Indeed, many arid and semi-arid areas were simply considered unsuitable for agriculture, and agricultural development of these areas was not systematically attempted until the second half of the 20th century.

Research in biosalinity includes studies of the and mechanisms of salt tolerance in plants, and selection for salt tolerance (), discovery of periods in a crop plant's life cycle when it may be less sensitive to salt, use of saline water to increase desirable traits (such as concentration in a fruit) or to control the ripening process, study of the interaction between salinity and properties, and development of naturally salt-tolerant plant species () into useful agricultural crops. See also , which thrive under conditions of high salinity.

When properly applied (watering well in excess of evapotranspiration, maintaining for excellent drainage), brackish-water irrigation does not result in increased salinization of the soil. Sometimes this means that farmers have to add extra water after a rainstorm, to carry salts back down to below the root zone.


See also

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Organizations involved in biosaline research and development


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