Just a few ideas that might apply, more theoretical that experiential.  We once thought of developing a contained experiment using brackish waters with sweetgrass.  If the soils are exposed to some degree of salinity anyway, or there is no concern that they be exposed such as groundwaters are saline anyway, irrigation with saline water may have some benefits if you intend to grow plants that are adapted to the salinity in that the salinity would probably reduce many types of weeds, perhaps invasive species or other undesirable plants,  Such as sweetgrass, there is a species that grows in areas with only freshwater and another that grows in area with brackish influence.  The actual conditions of the brackish species are not well defined.  It would seem that you might have more control of weeds if you can control both moisture through irrigation and also perhaps the level salinity.

Endorsing  an impressive response from William , i would further add , amount salt that is injectedb into the soil with each irrigation in surface  irrigation compared to much lower amount of salts added though micro-irrigation where amoint of water in latter case is far lower.  This is where micro-irrigation using saline water is so effective compared tp surface irrigation 

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Flood irrigation with saline water would definitely block respiratory capacity of soil,adsorption and absorption of excess salt would hamper both soil and agricultue as the soil will become hypotonic

It depends on what you want to achieve.  In Guyana, very acid polder soils with resulting aluminium toxicity and flecks of elemental sulphur (pH 2-2.5) are reclaimed by using sea water.  The latter adds anions to the exchange complex and brings the pH to acceptable levels for growing crops ( pH 5-6).  Either natural rainfall or irrigation with fresh water washes out the excess salts and you have a useable soil for growing crops.

Micro-irrigation would add less total salts which wold make their removal in drains easier and more effective, provided you do not produce solonetzic soils with poor structure, low permeability and high density.

Stuart.

Rightly said Stuart , there is no doubt about the efficacy of micro-irrigation , but still we need to keep on track whether or not,  there is any genesis of further salinity or later developing into sodicity by measuring the exchangeable sodium , since increasing salinity within rootzone will late lead o formation sodic soil /solonetzic soil. but , when compare with flood irrigation/surface irrigation/basin irrigation methods , chances of further buildup of salinity are further reduced or delayed , without affecting the crop yield. What is most important , in such areas, rainfall is not much , probably less than 700mm per year , so rainfall coming to rescue of salinization is seems remote, unless soluble salts in those salt accumulated soils are drained out through efficient drainage management . Is there any possibility for development of solonetzic soil after the removal of soluble salts , unless soil has both salinity as well sodicity?  

o avoiding build-up of salts including sodium chloride is to ensure that there are drains to flush out excess salts at least once a year and to not use water high in sodium chloride.  If you do that, you should manage alright.  Without flushing out the salts, trouble will inevitably come in a dry climate but a little more slowly.

Stuart.

Stuart thanks for you response. Endorsing your comments, let me add my feedback. We have observed even with normal irrigation water used through drip irrigation under arid humid tropical conditions, also caused frequent clogging of drippers. under such condition what kind of strategies should we adopt?

Since the flow of water is very slow and the air is hot and dry, you need to find the best compromise rate of flow and have a routine of cleaning the nozzles regularly.  The latter should be readily detached and replaced, say, once a week, and the dirty nozzles soaked in water to clean them.  You solve one problem but create another as usual in life!

Stuart.

Dear Dr Stuart you are correct. solution of one problem is the start of the new one. Still it has to manage as it generally happens in the drip irrigation systems. Thanks for you valuable input.